upload codebase

.github/workflows/build.yml

@@ -0,0 +1,61 @@
+name: navicat-keygen builds
+on: [push]
+
+jobs:
+  navicat-keygen-x86:
+    runs-on: windows-latest
+    if: "startsWith(github.event.head_commit.message, '[build]')"
+    steps:
+      - name: Install dependencies
+        run: |
+          vcpkg install fmt:x86-windows-static
+          vcpkg install openssl:x86-windows-static
+          vcpkg install rapidjson:x86-windows-static
+          vcpkg install keystone:x86-windows-static
+          vcpkg install unicorn:x86-windows-static
+
+      - name: Clone source
+        uses: actions/checkout@v2
+
+      - name: Add msbuild to PATH
+        uses: microsoft/setup-msbuild@v1.1
+
+      - name: Build project
+        run: |
+          vcpkg integrate install
+          msbuild navicat-keygen.sln /p:Configuration=Release /p:Platform=x86
+      
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v2
+        with:
+          name: navicat-keygen-x86.zip
+          path: bin/x86-Release/*.exe
+
+  navicat-keygen-x64:
+    runs-on: windows-latest
+    if: "startsWith(github.event.head_commit.message, '[build]')"
+    steps:
+      - name: Install dependencies
+        run: |
+          vcpkg install fmt:x64-windows-static
+          vcpkg install openssl:x64-windows-static
+          vcpkg install rapidjson:x64-windows-static
+          vcpkg install keystone:x64-windows-static
+          vcpkg install unicorn:x64-windows-static
+
+      - name: Clone source
+        uses: actions/checkout@v2
+
+      - name: Add msbuild to PATH
+        uses: microsoft/setup-msbuild@v1.1
+
+      - name: Build project
+        run: |
+          vcpkg integrate install
+          msbuild navicat-keygen.sln /p:Configuration=Release /p:Platform=x64
+      
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v2
+        with:
+          name: navicat-keygen-x64.zip
+          path: bin/x64-Release/*.exe

.gitignore

@@ -0,0 +1,4 @@
+.vs/
+.vscode/
+bin/
+obj/

LICENSE

@@ -0,0 +1,674 @@
+GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
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+not convey it at all.  For example, if you agree to terms that obligate you
+to collect a royalty for further conveying from those to whom you convey
+the Program, the only way you could satisfy both those terms and this
+License would be to refrain entirely from conveying the Program.
+
+  13. Use with the GNU Affero General Public License.
+
+  Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work.  The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+  14. Revised Versions of this License.
+
+  The Free Software Foundation may publish revised and/or new versions of
+the GNU General Public License from time to time.  Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+  Each version is given a distinguishing version number.  If the
+Program specifies that a certain numbered version of the GNU General
+Public License "or any later version" applies to it, you have the
+option of following the terms and conditions either of that numbered
+version or of any later version published by the Free Software
+Foundation.  If the Program does not specify a version number of the
+GNU General Public License, you may choose any version ever published
+by the Free Software Foundation.
+
+  If the Program specifies that a proxy can decide which future
+versions of the GNU General Public License can be used, that proxy's
+public statement of acceptance of a version permanently authorizes you
+to choose that version for the Program.
+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    {one line to give the program's name and a brief idea of what it does.}
+    Copyright (C) 2017  {name of author}
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    navicat-keygen  Copyright (C) 2017  Double Helix
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.

README.md

@@ -0,0 +1,38 @@
+# navicat-keygen
+
+[中文版README](README.zh-CN.md)
+
+This repository will tell you how Navicat offline activation works.
+
+Previous code is archived in [`windows-archived`](https://github.com/DoubleLabyrinth/navicat-keygen/tree/windows-archived) branch for the reason that previous code contains 3rd binary libraries and it gets quite big :-(
+
+
+
+When you git-clone this repo, please add `--single-branch` flag so that archived branch won't be cloned to your computer, which saves your time and disk.
+
+```console
+$ git clone -b windows --single-branch https://github.com/DoubleLabyrinth/navicat-keygen.git
+```
+
+## 1. How does it work?
+
+see [here](doc/how-does-it-work.md)
+
+## 2. How to build?
+
+see [here](doc/how-to-build.md).
+
+## 3. How to use?
+
+For Windows users, see [here](doc/how-to-use.windows.md).
+
+For Linux users, see [here](doc/how-to-use.linux.md).
+
+## 4. Contributor
+
+* Deltafox79
+
+* dragonflylee
+
+* zenuo
+

README.zh-CN.md

@@ -0,0 +1,34 @@
+# Navicat Keygen
+
+这份repo将会告诉你Navicat是怎么完成离线激活的。
+
+由于历史代码包含第三方二进制库，且大小较大，故决定将该项目的历史代码归档到 [`windows-archived`](https://github.com/DoubleLabyrinth/navicat-keygen/tree/windows-archived) 分支。
+
+当你clone该仓库的时候，请使用 `--single-branch` 选项，以此避免clone到 `windows-archived` 分支，并且还可以节省你的时间和磁盘空间。
+
+```console
+$ git clone -b windows --single-branch https://github.com/DoubleLabyrinth/navicat-keygen.git
+```
+
+## 1. 注册机是怎么工作的？
+
+见[这里](doc/how-does-it-work.zh-CN.md)。
+
+## 2. 如何编译？
+
+见[这里](doc/how-to-build.zh-CN.md)。
+
+## 3. 如何使用这个注册机？
+
+针对 Windows 用户，请见[这里](doc/how-to-use.windows.zh-CN.md)。
+
+针对 Linux 用户，请见[这里](doc/how-to-use.linux.zh-CN.md)。
+
+## 4. 贡献者
+
+* Deltafox79
+
+* dragonflylee
+
+* zenuo
+

common/common.vcxitems

@@ -0,0 +1,46 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup Label="Globals">
+    <MSBuildAllProjects Condition="'$(MSBuildVersion)' == '' Or '$(MSBuildVersion)' &lt; '16.0'">$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
+    <HasSharedItems>true</HasSharedItems>
+    <ItemsProjectGuid>{6d81a756-475a-4093-919e-3e9217f662ca}</ItemsProjectGuid>
+  </PropertyGroup>
+  <ItemDefinitionGroup>
+    <ClCompile>
+      <AdditionalIncludeDirectories>%(AdditionalIncludeDirectories);$(MSBuildThisFileDirectory)</AdditionalIncludeDirectories>
+    </ClCompile>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ProjectCapability Include="SourceItemsFromImports" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="$(MSBuildThisFileDirectory)cp_converter.hpp" />
+    <ClInclude Include="$(MSBuildThisFileDirectory)exception.hpp" />
+    <ClInclude Include="$(MSBuildThisFileDirectory)exceptions\index_exception.hpp" />
+    <ClInclude Include="$(MSBuildThisFileDirectory)exceptions\key_exception.hpp" />
+    <ClInclude Include="$(MSBuildThisFileDirectory)exceptions\openssl_exception.hpp" />
+    <ClInclude Include="$(MSBuildThisFileDirectory)exceptions\win32_exception.hpp" />
+    <ClInclude Include="$(MSBuildThisFileDirectory)exceptions\not_implemented_exception.hpp" />
+    <ClInclude Include="$(MSBuildThisFileDirectory)exceptions\operation_canceled_exception.hpp" />
+    <ClInclude Include="$(MSBuildThisFileDirectory)exceptions\overflow_exception.hpp" />
+    <ClInclude Include="$(MSBuildThisFileDirectory)resource_traits\keystone\keystone_handle.hpp" />
+    <ClInclude Include="$(MSBuildThisFileDirectory)resource_traits\openssl\bignum.hpp" />
+    <ClInclude Include="$(MSBuildThisFileDirectory)resource_traits\openssl\bio.hpp" />
+    <ClInclude Include="$(MSBuildThisFileDirectory)resource_traits\openssl\bio_chain.hpp" />
+    <ClInclude Include="$(MSBuildThisFileDirectory)resource_traits\openssl\rsa.hpp" />
+    <ClInclude Include="$(MSBuildThisFileDirectory)resource_traits\unicorn\unicorn_handle.hpp" />
+    <ClInclude Include="$(MSBuildThisFileDirectory)resource_traits\win32\map_view_ptr.hpp" />
+    <ClInclude Include="$(MSBuildThisFileDirectory)resource_traits\cxx_dynamic_array_traits.hpp" />
+    <ClInclude Include="$(MSBuildThisFileDirectory)resource_traits\cxx_object_traits.hpp" />
+    <ClInclude Include="$(MSBuildThisFileDirectory)resource_traits\win32\file_handle.hpp" />
+    <ClInclude Include="$(MSBuildThisFileDirectory)resource_traits\win32\generic_handle.hpp" />
+    <ClInclude Include="$(MSBuildThisFileDirectory)resource_traits\win32\local_alloc.hpp" />
+    <ClInclude Include="$(MSBuildThisFileDirectory)resource_wrapper.hpp" />
+    <ClInclude Include="$(MSBuildThisFileDirectory)rsa_cipher.hpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="$(MSBuildThisFileDirectory)exceptions\openssl_exception.cpp" />
+    <ClCompile Include="$(MSBuildThisFileDirectory)exceptions\win32_exception.cpp" />
+    <ClCompile Include="$(MSBuildThisFileDirectory)rsa_cipher.cpp" />
+  </ItemGroup>
+</Project>

common/common.vcxitems.user

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <ShowAllFiles>true</ShowAllFiles>
+  </PropertyGroup>
+</Project>

common/cp_converter.hpp

@@ -0,0 +1,79 @@
+#pragma once
+#include <string>
+#include <windows.h>
+#include "exceptions/win32_exception.hpp"
+
+#define NKG_CURRENT_SOURCE_FILE() u8".\\common\\cp_converter.hpp"
+#define NKG_CURRENT_SOURCE_LINE() __LINE__
+
+namespace nkg {
+
+    template<int from_cp, int to_cp>
+    struct cp_converter {
+        static std::string convert(std::string_view from_string) {
+            if constexpr (from_cp == to_cp) {
+                return from_string;
+            } else {
+                if (from_cp == CP_ACP && GetACP() == to_cp) {
+                    return from_string;
+                } else {
+                    return cp_converter<-1, to_cp>::convert(cp_converter<from_cp, -1>::convert(from_string));
+                }
+            }
+        }
+    };
+
+    template<int from_cp>
+    struct cp_converter<from_cp, -1> {
+        static std::wstring convert(std::string_view from_string) {
+            int len;
+
+            len = MultiByteToWideChar(from_cp, 0, from_string.data(), -1, NULL, 0);
+            if (len <= 0) {
+                throw ::nkg::exceptions::win32_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), GetLastError(), u8"MultiByteToWideChar failed.");
+            }
+
+            std::wstring to_string(len, 0);
+
+            len = MultiByteToWideChar(from_cp, 0, from_string.data(), -1, to_string.data(), len);
+            if (len <= 0) {
+                throw ::nkg::exceptions::win32_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), GetLastError(), u8"MultiByteToWideChar failed.");
+            }
+
+            while (to_string.length() > 0 && to_string.back() == 0) {
+                to_string.pop_back();
+            }
+
+            return to_string;
+        }
+    };
+
+    template<int to_cp>
+    struct cp_converter<-1, to_cp> {
+        static std::string convert(std::wstring_view from_string) {
+            int len;
+            
+            len = WideCharToMultiByte(to_cp, 0, from_string.data(), -1, NULL, 0, NULL, NULL);
+            if (len <= 0) {
+                throw ::nkg::exceptions::win32_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), GetLastError(), u8"WideCharToMultiByte failed.");
+            }
+
+            std::string to_string(len, 0);
+
+            len = WideCharToMultiByte(to_cp, 0, from_string.data(), -1, to_string.data(), len, NULL, NULL);
+            if (len <= 0) {
+                throw ::nkg::exceptions::win32_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), GetLastError(), u8"WideCharToMultiByte failed.");
+            }
+
+            while (to_string.length() > 0 && to_string.back() == 0) {
+                to_string.pop_back();
+            }
+
+            return to_string;
+        }
+    };
+
+}
+
+#undef NKG_CURRENT_SOURCE_LINE
+#undef NKG_CURRENT_SOURCE_FILE

common/exception.hpp

@@ -0,0 +1,90 @@
+#pragma once
+#include <exception>
+#include <string>
+#include <vector>
+#include <utility>
+
+namespace nkg {
+
+    class exception : public std::exception {
+    private:
+        int m_source_line;
+        std::string m_source_file;
+        std::string m_custom_message;
+        std::vector<std::string> m_hints;
+
+    public:
+        exception(std::string_view file, int line, std::string_view message) noexcept :
+            std::exception(),   // don't pass `char*` to `std::exception`, because it is not documented in c++ standard.
+            m_source_line(line),
+            m_source_file(file),
+            m_custom_message(message) {}
+
+        [[nodiscard]]
+        int source_line() const noexcept {
+            return m_source_line;
+        }
+
+        [[nodiscard]]
+        const std::string& source_file() const noexcept {
+            return m_source_file;
+        }
+
+        [[nodiscard]]
+        const std::string& custom_message() const noexcept {
+            return m_custom_message;
+        }
+
+        exception& push_hint(std::string_view hint) noexcept {
+            m_hints.emplace_back(hint);
+            return *this;
+        }
+
+        exception& pop_hint() noexcept {
+            m_hints.pop_back();
+            return *this;
+        }
+
+        const std::vector<std::string>& hints() const noexcept {
+            return m_hints;
+        }
+
+        virtual const char* what() const noexcept override {
+            return m_custom_message.c_str();
+        }
+
+        [[nodiscard]]
+        virtual bool error_code_exists() const noexcept {
+            return false;
+        }
+
+        [[nodiscard]]
+        virtual intptr_t error_code() const noexcept {
+#if _MSC_VER
+            __debugbreak();
+            __assume(false);
+#elif defined(__GNUC__) || defined(__GNUG__) || defined(__clang__)
+            __builtin_trap();
+            __builtin_unreachable();
+#else
+#error "exception.hpp: unknown compiler is detected."
+#endif
+        }
+
+        [[nodiscard]]
+        virtual const std::string& error_string() const noexcept {
+#if _MSC_VER
+            __debugbreak();
+            __assume(false);
+#elif defined(__GNUC__) || defined(__GNUG__) || defined(__clang__)
+            __builtin_trap();
+            __builtin_unreachable();
+#else
+#error "exception.hpp: unknown compiler is detected."
+#endif
+        }
+
+        virtual ~exception() = default;
+    };
+
+}

common/exceptions/index_exception.hpp

@@ -0,0 +1,12 @@
+#pragma once
+#include "../exception.hpp"
+
+namespace nkg::exceptions {
+
+    class index_exception : public ::nkg::exception {
+    public:
+        index_exception(std::string_view file, int line, std::string_view message) noexcept :
+            ::nkg::exception(file, line, message) {}
+    };
+
+}

common/exceptions/key_exception.hpp

@@ -0,0 +1,12 @@
+#pragma once
+#include "../exception.hpp"
+
+namespace nkg::exceptions {
+
+    class key_exception : public ::nkg::exception {
+    public:
+        key_exception(std::string_view file, int line, std::string_view message) noexcept :
+            ::nkg::exception(file, line, message) {}
+    };
+
+}

common/exceptions/not_implemented_exception.hpp

@@ -0,0 +1,12 @@
+#pragma once
+#include "../exception.hpp"
+
+namespace nkg::exceptions {
+
+    class not_implemented_exception : public ::nkg::exception {
+    public:
+        not_implemented_exception(std::string_view file, int line, std::string_view message) noexcept :
+            ::nkg::exception(file, line, message) {}
+    };
+
+}

common/exceptions/openssl_exception.cpp

@@ -0,0 +1,20 @@
+#include "openssl_exception.hpp"
+#include <mutex>
+
+#pragma comment(lib, "libcrypto")
+#pragma comment(lib, "crypt32") // required by libcrypto.lib
+#pragma comment(lib, "ws2_32")  // required by libcrypto.lib
+
+namespace nkg::exceptions {
+
+    openssl_exception::openssl_exception(std::string_view file, int line, error_code_t openssl_error_code, std::string_view message) noexcept :
+        ::nkg::exception(file, line, message) 
+    {
+        static std::once_flag onceflag_load_crypto_strings;
+        std::call_once(onceflag_load_crypto_strings, []() { ERR_load_crypto_strings(); });
+
+        m_error_code = openssl_error_code;
+        m_error_string = ERR_reason_error_string(m_error_code);
+    }
+
+}

common/exceptions/openssl_exception.hpp

@@ -0,0 +1,34 @@
+#pragma once
+#include "../exception.hpp"
+#include <openssl/err.h>
+
+namespace nkg::exceptions {
+
+    class openssl_exception final : public ::nkg::exception {
+    public:
+        using error_code_t = decltype(ERR_get_error());
+
+    private:
+        error_code_t m_error_code;
+        std::string m_error_string;
+
+    public:
+        openssl_exception(std::string_view file, int line, error_code_t openssl_error_code, std::string_view message) noexcept;
+
+        [[nodiscard]]
+        virtual bool error_code_exists() const noexcept override {
+            return true;
+        }
+
+        [[nodiscard]]
+        virtual intptr_t error_code() const noexcept override {
+            return m_error_code;
+        }
+
+        [[nodiscard]]
+        virtual const std::string& error_string() const noexcept override {
+            return m_error_string;
+        }
+    };
+
+}

common/exceptions/operation_canceled_exception.hpp

@@ -0,0 +1,12 @@
+#pragma once
+#include "../exception.hpp"
+
+namespace nkg::exceptions {
+
+    class operation_canceled_exception : public ::nkg::exception {
+    public:
+        operation_canceled_exception(std::string_view file, int line, std::string_view message) noexcept :
+            ::nkg::exception(file, line, message) {}
+    };
+
+}

common/exceptions/overflow_exception.hpp

@@ -0,0 +1,12 @@
+#pragma once
+#include "../exception.hpp"
+
+namespace nkg::exceptions {
+
+    class overflow_exception : public ::nkg::exception {
+    public:
+        overflow_exception(std::string_view file, int line, std::string_view message) noexcept :
+            ::nkg::exception(file, line, message) {}
+    };
+
+}

common/exceptions/win32_exception.cpp

@@ -0,0 +1,30 @@
+#include "win32_exception.hpp"
+#include "../resource_wrapper.hpp"
+#include "../resource_traits/win32/local_alloc.hpp"
+#include "../cp_converter.hpp"
+
+namespace nkg::exceptions {
+
+    win32_exception::win32_exception(std::string_view file, int line, error_code_t win32_error_code, std::string_view message) noexcept :
+        ::nkg::exception(file, line, message)
+    {
+        m_error_code = win32_error_code;
+
+        ::nkg::resource_wrapper error_string{ ::nkg::resource_traits::win32::local_alloc{} };
+        FormatMessageW(
+            FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_MAX_WIDTH_MASK,
+            NULL,
+            win32_error_code,
+            MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+            error_string.template unsafe_addressof<wchar_t>(),
+            0,
+            NULL
+        );
+        if (error_string.is_valid()) {
+            m_error_string = ::nkg::cp_converter<-1, CP_UTF8>::convert(error_string.template as<wchar_t*>());
+        } else {
+            std::terminate();
+        }
+    }
+
+}

common/exceptions/win32_exception.hpp

@@ -0,0 +1,35 @@
+#pragma once
+#include "../exception.hpp"
+#include <windows.h>
+
+namespace nkg::exceptions {
+
+    class win32_exception final : public ::nkg::exception {
+    public:
+        using error_code_t = decltype(GetLastError());
+
+    private:
+        error_code_t m_error_code;
+        std::string m_error_string;
+
+    public:
+
+        win32_exception(std::string_view file, int line, error_code_t win32_error_code, std::string_view message) noexcept;
+
+        [[nodiscard]]
+        virtual bool error_code_exists() const noexcept override {
+            return true;
+        }
+
+        [[nodiscard]]
+        virtual intptr_t error_code() const noexcept override {
+            return m_error_code;
+        }
+
+        [[nodiscard]]
+        virtual const std::string& error_string() const noexcept override {
+            return m_error_string;
+        }
+    };
+
+}

common/resource_traits/cxx_dynamic_array_traits.hpp

@@ -0,0 +1,21 @@
+#pragma once
+
+namespace nkg::resource_traits {
+
+    template<typename element_t>
+    struct cxx_dynamic_array_traits {
+        using handle_t = element_t*;
+
+        static constexpr handle_t invalid_value = nullptr;
+
+        [[nodiscard]]
+        static bool is_valid(const handle_t& handle) noexcept {
+            return handle != invalid_value;
+        }
+
+        static void release(const handle_t& handle) {
+            delete[] handle;
+        }
+    };
+
+}

common/resource_traits/cxx_object_traits.hpp

@@ -0,0 +1,21 @@
+#pragma once
+
+namespace nkg::resource_traits {
+
+    template<typename object_t>
+    struct cxx_object_traits {
+        using handle_t = object_t*;
+
+        static constexpr handle_t invalid_value = nullptr;
+
+        [[nodiscard]]
+        static bool is_valid(const handle_t& handle) noexcept {
+            return handle != invalid_value;
+        }
+
+        static void release(const handle_t& handle) {
+            delete handle;
+        }
+    };
+
+}

common/resource_traits/keystone/keystone_handle.hpp

@@ -0,0 +1,35 @@
+#pragma once
+#include <keystone/keystone.h>
+
+namespace nkg::resource_traits::keystone {
+
+    struct keystone_handle {
+        using handle_t = ks_engine*;
+
+        static constexpr handle_t invalid_value = nullptr;
+
+        [[nodiscard]]
+        static bool is_valid(const handle_t& handle) noexcept {
+            return handle != invalid_value;
+        }
+
+        static void release(const handle_t& handle) {
+            ks_close(handle);
+        }
+    };
+
+    struct keystone_alloc {
+        using handle_t = unsigned char*;
+
+        static constexpr handle_t invalid_value = nullptr;
+
+        [[nodiscard]]
+        static bool is_valid(const handle_t& handle) noexcept {
+            return handle != invalid_value;
+        }
+
+        static void release(const handle_t& handle) noexcept {
+            ks_free(handle);
+        }
+    };
+}

common/resource_traits/openssl/bignum.hpp

@@ -0,0 +1,21 @@
+#pragma once
+#include <openssl/bn.h>
+
+namespace nkg::resource_traits::openssl {
+
+    struct bignum {
+        using handle_t = BIGNUM*;
+
+        static constexpr handle_t invalid_value = nullptr;
+
+        [[nodiscard]]
+        static bool is_valid(const handle_t& handle) noexcept {
+            return handle != invalid_value;
+        }
+
+        static void release(const handle_t& handle) noexcept {
+            BN_free(handle);
+        }
+    };
+
+}

common/resource_traits/openssl/bio.hpp

@@ -0,0 +1,21 @@
+#pragma once
+#include <openssl/bio.h>
+
+namespace nkg::resource_traits::openssl {
+
+    struct bio {
+        using handle_t = BIO*;
+
+        static constexpr handle_t invalid_value = nullptr;
+
+        [[nodiscard]]
+        static bool is_valid(const handle_t& handle) noexcept {
+            return handle != invalid_value;
+        }
+
+        static void release(const handle_t& handle) noexcept {
+            BIO_free(handle);
+        }
+    };
+
+}

common/resource_traits/openssl/bio_chain.hpp

@@ -0,0 +1,21 @@
+#pragma once
+#include <openssl/bio.h>
+
+namespace nkg::resource_traits::openssl {
+
+    struct bio_chain {
+        using handle_t = BIO*;
+
+        static constexpr handle_t invalid_value = nullptr;
+
+        [[nodiscard]]
+        static bool is_valid(const handle_t& handle) noexcept {
+            return handle != invalid_value;
+        }
+
+        static void release(const handle_t& handle) noexcept {
+            BIO_free_all(handle);
+        }
+    };
+
+}

common/resource_traits/openssl/rsa.hpp

@@ -0,0 +1,21 @@
+#pragma once
+#include <openssl/rsa.h>
+
+namespace nkg::resource_traits::openssl {
+
+    struct rsa {
+        using handle_t = RSA*;
+
+        static constexpr handle_t invalid_value = nullptr;
+
+        [[nodiscard]]
+        static bool is_valid(const handle_t& handle) noexcept {
+            return handle != invalid_value;
+        }
+
+        static void release(const handle_t& handle) noexcept {
+            RSA_free(handle);
+        }
+    };
+
+}

common/resource_traits/unicorn/unicorn_handle.hpp

@@ -0,0 +1,21 @@
+#pragma once
+#include <unicorn/unicorn.h>
+
+namespace nkg::resource_traits::unicorn {
+
+    struct unicorn_handle {
+        using handle_t = uc_engine*;
+
+        static constexpr handle_t invalid_value = nullptr;
+
+        [[nodiscard]]
+        static bool is_valid(const handle_t& handle) noexcept {
+            return handle != invalid_value;
+        }
+
+        static void release(const handle_t& handle) {
+            uc_close(handle);
+        }
+    };
+
+}

common/resource_traits/win32/file_handle.hpp

@@ -0,0 +1,21 @@
+#pragma once
+#include <windows.h>
+
+namespace nkg::resource_traits::win32 {
+
+    struct file_handle {
+        using handle_t = HANDLE;
+
+        static inline const handle_t invalid_value = INVALID_HANDLE_VALUE;
+
+        [[nodiscard]]
+        static bool is_valid(const handle_t& handle) noexcept {
+            return handle != invalid_value;
+        }
+
+        static void release(const handle_t& handle) {
+            CloseHandle(handle);
+        }
+    };
+
+}

common/resource_traits/win32/generic_handle.hpp

@@ -0,0 +1,21 @@
+#pragma once
+#include <windows.h>
+
+namespace nkg::resource_traits::win32 {
+
+    struct generic_handle {
+        using handle_t = HANDLE;
+
+        static constexpr handle_t invalid_value = NULL;
+
+        [[nodiscard]]
+        static bool is_valid(const handle_t& handle) noexcept {
+            return handle != invalid_value;
+        }
+
+        static void release(const handle_t& handle) {
+            CloseHandle(handle);
+        }
+    };
+
+}

common/resource_traits/win32/local_alloc.hpp

@@ -0,0 +1,21 @@
+#pragma once
+#include <windows.h>
+
+namespace nkg::resource_traits::win32 {
+
+    struct local_alloc {
+        using handle_t = HLOCAL;
+
+        static constexpr handle_t invalid_value = NULL;
+
+        [[nodiscard]]
+        static bool is_valid(const handle_t& handle) noexcept {
+            return handle != invalid_value;
+        }
+
+        static void release(const handle_t handle) {
+            LocalFree(handle);
+        }
+    };
+
+}

common/resource_traits/win32/map_view_ptr.hpp

@@ -0,0 +1,21 @@
+#pragma once
+#include <windows.h>
+
+namespace nkg::resource_traits::win32 {
+
+    struct map_view_ptr {
+        using handle_t = PVOID;
+
+        static constexpr handle_t invalid_value = NULL;
+
+        [[nodiscard]]
+        static bool is_valid(const handle_t& handle) noexcept {
+            return handle != invalid_value;
+        }
+
+        static void release(const handle_t& handle) {
+            UnmapViewOfFile(handle);
+        }
+    };
+
+}

common/resource_wrapper.hpp

@@ -0,0 +1,245 @@
+#pragma once
+#include <type_traits>
+#include <utility>
+
+namespace nkg {
+
+    template<typename resource_traits_t, typename releaser_t = void>
+    class resource_wrapper {
+    public:
+        using handle_t = typename resource_traits_t::handle_t; 
+        static_assert(std::is_trivial_v<handle_t> && std::is_standard_layout_v<handle_t>, "`resource_wrapper` requires a handle with POD type.");
+
+    private:
+        handle_t m_handle;
+        releaser_t m_releaser;
+
+    public:
+        template<typename releaser_arg_t>
+        resource_wrapper(releaser_arg_t&& releaser) noexcept :
+            m_handle(resource_traits_t::invalid_value),
+            m_releaser(std::forward<releaser_arg_t>(releaser)) {}
+
+        template<typename releaser_arg_t>
+        resource_wrapper(const handle_t& handle, releaser_arg_t&& releaser) noexcept :
+            m_handle(handle),
+            m_releaser(std::forward<releaser_arg_t>(releaser)) {}
+
+        template<typename releaser_arg_t>
+        resource_wrapper(resource_traits_t, releaser_arg_t&& releaser) noexcept :
+            m_handle(resource_traits_t::invalid_value),
+            m_releaser(std::forward<releaser_arg_t>(releaser)) {}
+
+        template<typename releaser_arg_t>
+        resource_wrapper(resource_traits_t, const handle_t& handle, releaser_arg_t&& releaser) noexcept :
+            m_handle(handle),
+            m_releaser(std::forward<releaser_t>(releaser)) {}
+
+        // 
+        // `resource_wrapper` does not allow copy-construct
+        // 
+        resource_wrapper(const resource_wrapper& other) = delete;
+
+        //
+        // `resource_wrapper` allows move-construct.
+        //
+        resource_wrapper(resource_wrapper&& other) noexcept :
+            m_handle(other.m_handle),
+            m_releaser(std::move(other.m_releaser)) 
+        {
+            other.m_handle = resource_traits_t::invalid_value;
+        }
+
+        //
+        // `resource_wrapper` does not allow to copy.
+        //
+        resource_wrapper& operator=(const resource_wrapper& other) = delete;
+
+        //
+        // `resource_wrapper` allows to move.
+        //
+        resource_wrapper& operator=(resource_wrapper&& other) noexcept {
+            if (this != std::addressof(other)) {
+                m_handle = other.m_handle;
+                m_releaser = std::move(other.m_releaser);
+                other.m_handle = resource_traits_t::invalid_value;
+            }
+            return *this;
+        }
+
+        template<typename = std::enable_if_t<std::is_pointer_v<handle_t>>>
+        [[nodiscard]]
+        handle_t operator->() const noexcept {
+            return m_handle;
+        }
+
+        template<typename as_t, typename = std::enable_if_t<std::is_pointer_v<handle_t>>>
+        [[nodiscard]]
+        as_t as() const noexcept {
+            return reinterpret_cast<as_t>(m_handle);
+        }
+
+        [[nodiscard]]
+        bool is_valid() const noexcept {
+            return resource_traits_t::is_valid(m_handle);
+        }
+
+        [[nodiscard]]
+        const handle_t& get() const noexcept {
+            return m_handle;
+        }
+
+        template<typename as_t = handle_t>
+        [[nodiscard]]
+        as_t* unsafe_addressof() noexcept {
+            return reinterpret_cast<as_t*>(std::addressof(m_handle));
+        }
+
+        void set(const handle_t& handle) {
+            if (is_valid()) {
+                m_releaser(m_handle);
+            }
+            m_handle = handle;
+        }
+
+        void discard() noexcept {
+            m_handle = resource_traits_t::invalid_value;
+        }
+
+        [[nodiscard]]
+        handle_t transfer() noexcept {
+            handle_t t = m_handle;
+            m_handle = resource_traits_t::invalid_value;
+            return t;
+        }
+
+        void release() {
+            if (is_valid()) {
+                m_releaser(m_handle);
+                m_handle = resource_traits_t::invalid_value;
+            }
+        }
+
+        ~resource_wrapper() {
+            release();
+        }
+    };
+
+    template<typename resource_traits_t>
+    class resource_wrapper<resource_traits_t, void> {
+    public:
+        using handle_t = typename resource_traits_t::handle_t;
+        static_assert(std::is_trivial_v<handle_t>&& std::is_standard_layout_v<handle_t>, "`resource_wrapper` requires a handle with POD type.");
+
+    private:
+        handle_t m_handle;
+
+    public:
+        resource_wrapper() noexcept :
+            m_handle(resource_traits_t::invalid_value) {}
+
+        resource_wrapper(const handle_t& handle) noexcept :
+            m_handle(handle) {}
+
+        resource_wrapper(resource_traits_t) noexcept :
+            m_handle(resource_traits_t::invalid_value) {}
+
+        resource_wrapper(resource_traits_t, const handle_t& handle) noexcept :
+            m_handle(handle) {}
+
+        resource_wrapper(const resource_wrapper& other) = delete;
+
+        resource_wrapper(resource_wrapper&& other) noexcept :
+            m_handle(other.m_handle) 
+        {
+            other.m_handle = resource_traits_t::invalid_value;
+        }
+
+        resource_wrapper& operator=(const resource_wrapper& other) = delete;
+
+        resource_wrapper& operator=(resource_wrapper&& other) noexcept {
+            if (this != std::addressof(other)) {
+                m_handle = other.m_handle;
+                other.m_handle = resource_traits_t::invalid_value;
+            }
+            return *this;
+        }
+
+        template<typename = std::enable_if_t<std::is_pointer_v<handle_t>>>
+        [[nodiscard]]
+        handle_t operator->() const noexcept {
+            return m_handle;
+        }
+
+        template<typename as_t, typename = std::enable_if_t<std::is_pointer_v<handle_t>>>
+        [[nodiscard]]
+        as_t as() const noexcept {
+            return reinterpret_cast<as_t>(m_handle);
+        }
+
+        [[nodiscard]]
+        bool is_valid() const noexcept {
+            return resource_traits_t::is_valid(m_handle);
+        }
+
+        [[nodiscard]]
+        const handle_t& get() const noexcept {
+            return m_handle;
+        }
+
+        template<typename as_t = handle_t>
+        [[nodiscard]]
+        as_t* unsafe_addressof() noexcept {
+            return reinterpret_cast<as_t*>(std::addressof(m_handle));
+        }
+
+        void set(const handle_t& handle) {
+            if (is_valid()) {
+                resource_traits_t::release(m_handle);
+            }
+            m_handle = handle;
+        }
+
+        void discard() noexcept {
+            m_handle = resource_traits_t::invalid_value;
+        }
+
+        [[nodiscard]]
+        handle_t transfer() noexcept {
+            handle_t t = m_handle;
+            m_handle = resource_traits_t::invalid_value;
+            return t;
+        }
+
+        void release() {
+            if (is_valid()) {
+                resource_traits_t::release(m_handle);
+                m_handle = resource_traits_t::invalid_value;
+            }
+        }
+
+        ~resource_wrapper() {
+            release();
+        }
+    };
+
+    template<typename resource_traits_t>
+    resource_wrapper(resource_traits_t) ->
+        resource_wrapper<resource_traits_t, void>;
+
+    template<typename resource_traits_t, typename arg_t>
+    resource_wrapper(resource_traits_t, arg_t&&) ->
+        resource_wrapper<
+            resource_traits_t,
+            std::conditional_t<
+                std::is_same_v<std::remove_cv_t<std::remove_reference_t<arg_t>>, typename resource_traits_t::handle_t> == false,
+                std::remove_reference_t<arg_t>,
+                void
+            >
+        >;
+
+    template<typename resource_traits_t, typename releaser_t, typename handle_t = typename resource_traits_t::handle_t>
+    resource_wrapper(resource_traits_t, const handle_t&, releaser_t&&) ->
+        resource_wrapper<resource_traits_t, std::remove_reference_t<releaser_t>>;
+
+}

common/rsa_cipher.cpp

@@ -0,0 +1,361 @@
+#include "rsa_cipher.hpp"
+
+#include <openssl/err.h>
+#include <openssl/pem.h>
+#include <openssl/bio.h>
+
+#include "resource_traits/openssl/bio.hpp"
+#include "resource_traits/openssl/bignum.hpp"
+
+#include "cp_converter.hpp"
+
+#include "exceptions/overflow_exception.hpp"
+#include "exceptions/openssl_exception.hpp"
+
+#pragma comment(lib, "libcrypto")
+#pragma comment(lib, "crypt32") // required by libcrypto.lib
+#pragma comment(lib, "ws2_32")  // required by libcrypto.lib
+
+#define NKG_CURRENT_SOURCE_FILE() u8".\\common\\rsa_cipher.cpp"
+#define NKG_CURRENT_SOURCE_LINE() __LINE__
+
+namespace nkg {
+
+    RSA* rsa_cipher::_read_private_key_from_bio(BIO* p_bio) {
+        resource_wrapper new_rsa
+            { resource_traits::openssl::rsa{}, PEM_read_bio_RSAPrivateKey(p_bio, nullptr, nullptr, nullptr) };
+
+        if (new_rsa.is_valid()) {
+            return new_rsa.transfer();
+        } else {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"PEM_read_bio_RSAPrivateKey failed.")
+                .push_hint(u8"Are you sure that you DO provide a valid RSA private key file?");
+        }
+    }
+
+    RSA* rsa_cipher::_read_public_key_pem_from_bio(BIO* p_bio) {
+        resource_wrapper new_rsa
+            { resource_traits::openssl::rsa{}, PEM_read_bio_RSA_PUBKEY(p_bio, nullptr, nullptr, nullptr) };
+
+        if (new_rsa.is_valid()) {
+            return new_rsa.transfer();
+        } else {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"PEM_read_bio_RSA_PUBKEY failed.")
+                .push_hint(u8"Are you sure that you DO provide a valid RSA public key file with PEM format?");
+        }
+    }
+
+    RSA* rsa_cipher::_read_public_key_pkcs1_from_bio(BIO* p_bio) {
+        resource_wrapper new_rsa
+            { resource_traits::openssl::rsa{}, PEM_read_bio_RSAPublicKey(p_bio, nullptr, nullptr, nullptr) };
+
+        if (new_rsa.is_valid()) {
+            return new_rsa.transfer();
+        } else {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"PEM_read_bio_RSAPublicKey failed.")
+                .push_hint(u8"Are you sure that you DO provide a valid RSA public key file with PKCS1 format?");
+        }
+    }
+
+    void rsa_cipher::_write_private_key_to_bio(RSA* p_rsa, BIO* p_bio) {
+        auto r = PEM_write_bio_RSAPrivateKey(p_bio, p_rsa, nullptr, nullptr, 0, nullptr, nullptr);
+        if (r == 0) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"PEM_write_bio_RSAPrivateKey failed.");
+        };
+    }
+
+    void rsa_cipher::_write_public_key_pem_to_bio(RSA* p_rsa, BIO* p_bio) {
+        auto r = PEM_write_bio_RSA_PUBKEY(p_bio, p_rsa);
+        if (r == 0) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"PEM_write_bio_RSA_PUBKEY failed.");
+        }
+    }
+
+    void rsa_cipher::_write_public_key_pkcs1_to_bio(RSA* p_rsa, BIO* p_bio) {
+        auto r = PEM_write_bio_RSAPublicKey(p_bio, p_rsa);
+        if (r == 0) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"PEM_write_bio_RSAPublicKey failed.");
+        }
+    }
+
+    rsa_cipher::rsa_cipher() : m_rsa(RSA_new()) {
+        if (!m_rsa.is_valid()) {
+            throw exceptions::openssl_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), ERR_get_error(), u8"RSA_new failed.");
+        }
+    }
+
+    [[nodiscard]]
+    size_t rsa_cipher::bits() const {
+#if (OPENSSL_VERSION_NUMBER & 0xffff0000) == 0x10000000     // openssl 1.0.x
+        if (m_rsa->n == nullptr) {
+            throw no_key_assigned_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"RSA modulus has not been set.");
+        }
+        return BN_num_bits(m_rsa->n);
+#elif (OPENSSL_VERSION_NUMBER & 0xffff0000) == 0x10100000     // openssl 1.1.x
+        return RSA_bits(m_rsa.get());
+#else
+#error "rsa_cipher.cpp: uexpected OpenSSL version"
+#endif
+    }
+
+    void rsa_cipher::generate_key(int bits, unsigned int e) {
+        resource_wrapper bn_e{ resource_traits::openssl::bignum{}, BN_new() };
+
+        if (bn_e.is_valid() == false) {
+            throw exceptions::openssl_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), ERR_get_error(), u8"BN_new failed.");
+        }
+
+        if (BN_set_word(bn_e.get(), e) == 0) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"BN_set_word failed.");
+        }
+
+        if (RSA_generate_key_ex(m_rsa.get(), bits, bn_e.get(), nullptr) == 0) {
+            throw exceptions::openssl_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), ERR_get_error(), u8"RSA_generate_key_ex failed.");
+        }
+    }
+
+    void rsa_cipher::export_private_key_file(std::wstring_view file_path) const {
+        resource_wrapper bio_file
+            { resource_traits::openssl::bio{}, BIO_new_file(cp_converter<-1, CP_UTF8>::convert(file_path).c_str(), "w")};
+
+        if (bio_file.is_valid()) {
+            _write_private_key_to_bio(m_rsa.get(), bio_file.get());
+        } else {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"BIO_new_file failed.");
+        }
+    }
+
+    void rsa_cipher::export_private_key_file(const std::filesystem::path& file_path) const {
+        export_private_key_file(static_cast<std::wstring_view>(file_path.native()));
+    }
+
+    void rsa_cipher::export_public_key_file_pem(std::wstring_view file_path) const {
+        resource_wrapper bio_file
+            { resource_traits::openssl::bio{}, BIO_new_file(cp_converter<-1, CP_UTF8>::convert(file_path).c_str(), "w")};
+
+        if (bio_file.is_valid()) {
+            _write_public_key_pem_to_bio(m_rsa.get(), bio_file.get());
+        } else {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"BIO_new_file failed.");
+        }
+    }
+
+    void rsa_cipher::export_public_key_file_pem(const std::filesystem::path& file_path) const {
+        export_public_key_file_pem(static_cast<std::wstring_view>(file_path.native()));
+    }
+
+    void rsa_cipher::export_public_key_file_pkcs1(std::wstring_view file_path) const {
+        resource_wrapper bio_file
+            { resource_traits::openssl::bio{}, BIO_new_file(cp_converter<-1, CP_UTF8>::convert(file_path).c_str(), "w")};
+
+        if (bio_file.is_valid()) {
+            _write_public_key_pkcs1_to_bio(m_rsa.get(), bio_file.get());
+        } else {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"BIO_new_file failed.");
+        }
+    }
+
+    void rsa_cipher::export_public_key_file_pkcs1(const std::filesystem::path& file_path) const {
+        export_public_key_file_pkcs1(static_cast<std::wstring_view>(file_path.native()));
+    }
+
+    void rsa_cipher::import_private_key_file(std::wstring_view file_path) {
+        resource_wrapper bio_file
+            { resource_traits::openssl::bio{}, BIO_new_file(cp_converter<-1, CP_UTF8>::convert(file_path).c_str(), "r") };
+
+        if (bio_file.is_valid()) {
+            m_rsa.set(_read_private_key_from_bio(bio_file.get()));
+        } else {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"BIO_new_file failed.");
+        }
+    }
+
+    void rsa_cipher::import_private_key_file(const std::filesystem::path& file_path) {
+        import_private_key_file(static_cast<std::wstring_view>(file_path.native()));
+    }
+
+    void rsa_cipher::import_public_key_file_pem(std::wstring_view file_path) {
+        resource_wrapper bio_file
+            { resource_traits::openssl::bio{}, BIO_new_file(cp_converter<-1, CP_UTF8>::convert(file_path).c_str(), "r") };
+
+        if (bio_file.is_valid()) {
+            m_rsa.set(_read_public_key_pem_from_bio(bio_file.get()));
+        } else {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"BIO_new_file failed.");
+        }
+    }
+
+    void rsa_cipher::import_public_key_file_pem(const std::filesystem::path& file_path) {
+        import_public_key_file_pem(static_cast<std::wstring_view>(file_path.native()));
+    }
+
+    void rsa_cipher::import_public_key_file_pkcs1(std::wstring_view file_path) {
+        resource_wrapper bio_file
+            { resource_traits::openssl::bio{}, BIO_new_file(cp_converter<-1, CP_UTF8>::convert(file_path).c_str(), "r") };
+
+        if (bio_file.is_valid()) {
+            m_rsa.set(_read_public_key_pkcs1_from_bio(bio_file.get()));
+        } else {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"BIO_new_file failed.");
+        }
+    }
+
+    void rsa_cipher::import_public_key_file_pkcs1(const std::filesystem::path& file_path) {
+        import_public_key_file_pkcs1(static_cast<std::wstring_view>(file_path.native()));
+    }
+
+    [[nodiscard]]
+    std::string rsa_cipher::export_private_key_string() const {
+        resource_wrapper bio_memory{ resource_traits::openssl::bio{}, BIO_new(BIO_s_mem()) };
+
+        if (bio_memory.is_valid()) {
+            _write_private_key_to_bio(m_rsa.get(), bio_memory.get());
+
+            const char* pch = nullptr;
+            long lch = BIO_get_mem_data(bio_memory.get(), &pch);
+
+            return std::string(pch, lch);
+        } else {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"BIO_new failed.");
+        }
+    }
+
+    [[nodiscard]]
+    std::string rsa_cipher::export_public_key_string_pem() const {
+        resource_wrapper bio_memory{ resource_traits::openssl::bio{}, BIO_new(BIO_s_mem()) };
+
+        if (bio_memory.is_valid()) {
+            _write_public_key_pem_to_bio(m_rsa.get(), bio_memory.get());
+
+            const char* pch = nullptr;
+            long lch = BIO_get_mem_data(bio_memory.get(), &pch);
+
+            return std::string(pch, lch);
+        } else {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"BIO_new failed.");
+        }
+    }
+
+    [[nodiscard]]
+    std::string rsa_cipher::export_public_key_string_pkcs1() const {
+        resource_wrapper bio_memory{ resource_traits::openssl::bio{}, BIO_new(BIO_s_mem()) };
+
+        if (bio_memory.is_valid()) {
+            _write_public_key_pkcs1_to_bio(m_rsa.get(), bio_memory.get());
+
+            const char* pch = nullptr;
+            long lch = BIO_get_mem_data(bio_memory.get(), &pch);
+
+            return std::string(pch, lch);
+        } else {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"BIO_new failed.");
+        }
+    }
+
+    void rsa_cipher::import_private_key_string(std::string_view key_string) {
+        resource_wrapper bio_memory{ resource_traits::openssl::bio{}, BIO_new(BIO_s_mem()) };
+
+        if (bio_memory.is_valid() == false) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"BIO_new failed.");
+        }
+
+        if (BIO_puts(bio_memory.get(), key_string.data()) <= 0) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"BIO_puts failed.");
+        }
+
+        m_rsa.set(_read_private_key_from_bio(bio_memory.get()));
+    }
+
+    void rsa_cipher::import_public_key_string_pem(std::string_view key_string) {
+        resource_wrapper bio_memory{ resource_traits::openssl::bio{}, BIO_new(BIO_s_mem()) };
+
+        if (bio_memory.is_valid() == false) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"BIO_new failed.");
+        }
+
+        if (BIO_puts(bio_memory.get(), key_string.data()) <= 0) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"BIO_puts failed.");
+        }
+
+        m_rsa.set(_read_public_key_pem_from_bio(bio_memory.get()));
+    }
+
+    void rsa_cipher::import_public_key_string_pkcs1(std::string_view key_string) {
+        resource_wrapper bio_memory{ resource_traits::openssl::bio{}, BIO_new(BIO_s_mem()) };
+
+        if (bio_memory.is_valid() == false) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"BIO_new failed.");
+        }
+
+        if (BIO_puts(bio_memory.get(), key_string.data()) <= 0) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"BIO_puts failed.");
+        }
+
+        m_rsa.set(_read_public_key_pkcs1_from_bio(bio_memory.get()));
+    }
+
+    size_t rsa_cipher::public_encrypt(const void* plaintext, size_t plaintext_size, void* ciphertext, int padding) const {
+        if (plaintext_size <= INT_MAX) {
+            int bytes_written = 
+                RSA_public_encrypt(static_cast<int>(plaintext_size), reinterpret_cast<const unsigned char*>(plaintext), reinterpret_cast<unsigned char*>(ciphertext), m_rsa.get(), padding);
+            
+            if (bytes_written != -1) {
+                return bytes_written;
+            } else {
+                throw exceptions::openssl_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), ERR_get_error(), u8"RSA_public_encrypt failed.");
+            }
+        } else {
+            throw exceptions::overflow_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"plaintext_size > INT_MAX");
+        }
+    }
+
+    size_t rsa_cipher::private_encrypt(const void* plaintext, size_t plaintext_size, void* ciphertext, int padding) const {
+        if (plaintext_size <= INT_MAX) {
+            int bytes_written = 
+                RSA_private_encrypt(static_cast<int>(plaintext_size), reinterpret_cast<const unsigned char*>(plaintext), reinterpret_cast<unsigned char*>(ciphertext), m_rsa.get(), padding);
+            
+            if (bytes_written != -1) {
+                return bytes_written;
+            } else {
+                throw exceptions::openssl_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), ERR_get_error(), u8"RSA_public_encrypt failed.");
+            }
+        } else {
+            throw exceptions::overflow_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"plaintext_size > INT_MAX");
+        }
+    }
+
+    size_t rsa_cipher::public_decrypt(const void* ciphertext, size_t ciphertext_size, void* plaintext, int padding) const {
+        if (ciphertext_size <= INT_MAX) {
+            int bytes_written =
+                RSA_public_decrypt(static_cast<int>(ciphertext_size), reinterpret_cast<const unsigned char*>(ciphertext), reinterpret_cast<unsigned char*>(plaintext), m_rsa.get(), padding);
+
+            if (bytes_written != -1) {
+                return bytes_written;
+            } else {
+                throw exceptions::openssl_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), ERR_get_error(), u8"RSA_public_decrypt failed.")
+                    .push_hint(u8"Are your sure you DO provide a correct public key?");
+            }
+        } else {
+            throw exceptions::overflow_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"ciphertext_size > INT_MAX");
+        }
+    }
+
+    size_t rsa_cipher::private_decrypt(const void* ciphertext, size_t ciphertext_size, void* plaintext, int padding) const {
+        if (ciphertext_size <= INT_MAX) {
+            int bytes_written =
+                RSA_private_decrypt(static_cast<int>(ciphertext_size), reinterpret_cast<const unsigned char*>(ciphertext), reinterpret_cast<unsigned char*>(plaintext), m_rsa.get(), padding);
+
+            if (bytes_written != -1) {
+                return bytes_written;
+            } else {
+                throw exceptions::openssl_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), ERR_get_error(), u8"RSA_public_decrypt failed.")
+                    .push_hint(u8"Are your sure you DO provide a correct private key?");
+            }
+        } else {
+            throw exceptions::overflow_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"ciphertext_size > INT_MAX");
+        }
+    }
+}
+
+#undef NKG_CURRENT_SOURCE_FILE
+#undef NKG_CURRENT_SOURCE_LINE

common/rsa_cipher.hpp

@@ -0,0 +1,108 @@
+#pragma once
+#include <string>
+#include <filesystem>
+#include <openssl/rsa.h>
+
+#include "resource_wrapper.hpp"
+#include "resource_traits/openssl/rsa.hpp"
+
+#include "exception.hpp"
+
+#define NKG_CURRENT_SOURCE_FILE() u8".\\common\\rsa_cipher.hpp"
+#define NKG_CURRENT_SOURCE_LINE() __LINE__
+
+namespace nkg {
+
+    class rsa_cipher {
+    public:
+        class no_key_assigned_error : public ::nkg::exception {
+        public:
+            no_key_assigned_error(std::string_view file, int line, std::string_view message) noexcept :
+                ::nkg::exception(file, line, message) {}
+        };
+
+        class backend_error : public ::nkg::exception {
+        public:
+            backend_error(std::string_view file, int line, std::string_view message) noexcept :
+                ::nkg::exception(file, line, message) {}
+        };
+
+    private:
+        resource_wrapper<resource_traits::openssl::rsa> m_rsa;
+
+        [[nodiscard]]
+        static RSA* _read_private_key_from_bio(BIO* p_bio);
+
+        [[nodiscard]]
+        static RSA* _read_public_key_pem_from_bio(BIO* p_bio);
+
+        [[nodiscard]]
+        static RSA* _read_public_key_pkcs1_from_bio(BIO* p_bio);
+
+        static void _write_private_key_to_bio(RSA* p_rsa, BIO* p_bio);
+
+        static void _write_public_key_pem_to_bio(RSA* p_rsa, BIO* p_bio);
+
+        static void _write_public_key_pkcs1_to_bio(RSA* p_rsa, BIO* p_bio);
+
+    public:
+
+        rsa_cipher();
+
+        [[nodiscard]]
+        size_t bits() const;
+
+        void generate_key(int bits, unsigned int e = RSA_F4);
+
+        void export_private_key_file(std::wstring_view file_path) const;
+
+        void export_private_key_file(const std::filesystem::path& file_path) const;
+
+        void export_public_key_file_pem(std::wstring_view file_path) const;
+
+        void export_public_key_file_pem(const std::filesystem::path& file_path) const;
+
+        void export_public_key_file_pkcs1(std::wstring_view file_path) const;
+
+        void export_public_key_file_pkcs1(const std::filesystem::path& file_path) const;
+
+        void import_private_key_file(std::wstring_view file_path);
+
+        void import_private_key_file(const std::filesystem::path& file_path);
+
+        void import_public_key_file_pem(std::wstring_view file_path);
+
+        void import_public_key_file_pem(const std::filesystem::path& file_path);
+
+        void import_public_key_file_pkcs1(std::wstring_view file_path);
+
+        void import_public_key_file_pkcs1(const std::filesystem::path& file_path);
+
+        [[nodiscard]]
+        std::string export_private_key_string() const;
+
+        [[nodiscard]]
+        std::string export_public_key_string_pem() const;
+
+        [[nodiscard]]
+        std::string export_public_key_string_pkcs1() const;
+
+        void import_private_key_string(std::string_view key_string);
+
+        void import_public_key_string_pem(std::string_view key_string);
+
+        void import_public_key_string_pkcs1(std::string_view key_string);
+
+        size_t public_encrypt(const void* plaintext, size_t plaintext_size, void* ciphertext, int padding) const;
+
+        size_t private_encrypt(const void* plaintext, size_t plaintext_size, void* ciphertext, int padding) const;
+
+        size_t public_decrypt(const void* ciphertext, size_t ciphertext_size, void* plaintext, int padding) const;
+
+        size_t private_decrypt(const void* ciphertext, size_t ciphertext_size, void* plaintext, int padding) const;
+    };
+
+}
+
+#undef NKG_CURRENT_SOURCE_FILE
+#undef NKG_CURRENT_SOURCE_LINE

doc/how-does-it-work.md

@@ -0,0 +1,284 @@
+# Navicat Keygen - How does it work?
+
+[中文版](how-does-it-work.zh-CN.md)
+
+## 1. Keyword Explanation.
+
+* __Navicat Activation Public Key__
+
+  It is a __RSA-2048__ public key that Navicat used to encrypt or decrypt offline activation information.
+
+  It is stored in __navicat.exe__ as a kind of resource called __RCData__. The resource name is `"ACTIVATIONPUBKEY"`. You can see it by a software called [___Resource Hacker___](http://www.angusj.com/resourcehacker/). The public key is
+
+  ```
+  -----BEGIN PUBLIC KEY-----  
+  MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAw1dqF3SkCaAAmMzs889I  
+  qdW9M2dIdh3jG9yPcmLnmJiGpBF4E9VHSMGe8oPAy2kJDmdNt4BcEygvssEfginv  
+  a5t5jm352UAoDosUJkTXGQhpAWMF4fBmBpO3EedG62rOsqMBgmSdAyxCSPBRJIOF  
+  R0QgZFbRnU0frj34fiVmgYiLuZSAmIbs8ZxiHPdp1oD4tUpvsFci4QJtYNjNnGU2  
+  WPH6rvChGl1IRKrxMtqLielsvajUjyrgOC6NmymYMvZNER3htFEtL1eQbCyTfDmt  
+  YyQ1Wt4Ot12lxf0wVIR5mcGN7XCXJRHOFHSf1gzXWabRSvmt1nrl7sW6cjxljuuQ  
+  awIDAQAB  
+  -----END PUBLIC KEY-----  
+  ```
+
+  If you have the corresponding private key, you can tell me. I would be very appreciated for your generous.
+
+  __NOTICE:__
+
+  Start from __Navicat Premium 12.0.25__, Navicat do not load this public key from resource in `navicat.exe`. Instead, the public key is stored in `libcc.dll` and has been encrypted. To avoid being replaced easily, the public key is split into 5 parts:
+
+  The following content is discovered from `libcc.dll` of __Navicat Premium x64 12.0.25 Simplified Chinese version__. The SHA256 value of `libcc.dll` is `607e0a84c75966b00f3d12fa833e91d159e4f51ac51b6ba66f98d0c3cbefdce0`. 
+  
+  I __DO NOT__ guarantee that offset values are absolutely correct in other versions. But __char strings__ and __immediate values__ are highly possible to be found.
+
+  1. At file offset `+0x01A12090` in `libcc.dll`, stored as __char string__:  
+
+     ```
+     "D75125B70767B94145B47C1CB3C0755E  
+      7CCB8825C5DCE0C58ACF944E08280140  
+      9A02472FAFFD1CD77864BB821AE36766  
+      FEEDE6A24F12662954168BFA314BD950  
+      32B9D82445355ED7BC0B880887D650F5" 
+     ```
+
+  2. At file offset `+0x0059D799` in `libcc.dll`, stored as __immediate value__ in a instruction:
+
+     ```
+     0xFE 0xEA 0xBC 0x01
+     ```
+
+     In decimal: `29158142`
+
+  3. At file offset `+0x01A11DA0` in `libcc.dll`, stored as __char string__:
+
+     ```
+     "E1CED09B9C2186BF71A70C0FE2F1E0AE  
+      F3BD6B75277AAB20DFAF3D110F75912B  
+      FB63AC50EC4C48689D1502715243A79F  
+      39FF2DE2BF15CE438FF885745ED54573  
+      850E8A9F40EE2FF505EB7476F95ADB78  
+      3B28CA374FAC4632892AB82FB3BF4715  
+      FCFE6E82D03731FC3762B6AAC3DF1C3B  
+      C646FE9CD3C62663A97EE72DB932A301  
+      312B4A7633100C8CC357262C39A2B3A6  
+      4B224F5276D5EDBDF0804DC3AC4B8351  
+      62BB1969EAEBADC43D2511D6E0239287  
+      81B167A48273B953378D3D2080CC0677  
+      7E8A2364F0234B81064C5C739A8DA28D  
+      C5889072BF37685CBC94C2D31D0179AD  
+      86D8E3AA8090D4F0B281BE37E0143746  
+      E6049CCC06899401264FA471C016A96C  
+      79815B55BBC26B43052609D9D175FBCD  
+      E455392F10E51EC162F51CF732E6BB39  
+      1F56BBFD8D957DF3D4C55B71CEFD54B1  
+      9C16D458757373E698D7E693A8FC3981  
+      5A8BF03BA05EA8C8778D38F9873D62B4  
+      460F41ACF997C30E7C3AF025FA171B5F  
+      5AD4D6B15E95C27F6B35AD61875E5505  
+      449B4E"
+     ```
+
+  4. At file offset `+0x0059D77F` in `libcc.dll`, stored as __immediate value__ in a instruction:
+      
+     ```
+     0x59 0x08 0x01 0x00
+     ```
+
+     In decimal: `67673`
+
+  5. At file offset `+ 0x1A11D8C` in `libcc.dll`, stored as __char string__:
+
+     ```
+     "92933"
+     ```
+
+  Then output encrypted public key with format `"%s%d%s%d%s"`. The order is the same as it lists:
+
+  ```
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
+  ```
+
+  This encrypted public key can be decrypted by my another repo: [how-does-navicat-encrypt-password](https://github.com/DoubleLabyrinth/how-does-navicat-encrypt-password), while the key used is `b'23970790'`.
+
+  Example:
+
+  ```cmd
+  E:\GitHub>git clone https://github.com/DoubleLabyrinth/how-does-navicat-encrypt-password.git
+  ...
+  E:\GitHub>cd how-does-navicat-encrypt-password\python3
+  E:\GitHub\how-does-navicat-encrypt-password\python3>python
+  Python 3.6.3 (v3.6.3:2c5fed8, Oct  3 2017, 18:11:49) [MSC v.1900 64 bit (AMD64)] on win32
+  Type "help", "copyright", "credits" or "license" for more information.
+  >>> from NavicatCrypto import *
+  >>> cipher = Navicat11Crypto(b'23970790')
+  >>> print(cipher.DecryptString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
+  -----BEGIN PUBLIC KEY-----
+  MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAw1dqF3SkCaAAmMzs889I
+  qdW9M2dIdh3jG9yPcmLnmJiGpBF4E9VHSMGe8oPAy2kJDmdNt4BcEygvssEfginv
+  a5t5jm352UAoDosUJkTXGQhpAWMF4fBmBpO3EedG62rOsqMBgmSdAyxCSPBRJIOF
+  R0QgZFbRnU0frj34fiVmgYiLuZSAmIbs8ZxiHPdp1oD4tUpvsFci4QJtYNjNnGU2
+  WPH6rvChGl1IRKrxMtqLielsvajUjyrgOC6NmymYMvZNER3htFEtL1eQbCyTfDmt
+  YyQ1Wt4Ot12lxf0wVIR5mcGN7XCXJRHOFHSf1gzXWabRSvmt1nrl7sW6cjxljuuQ
+  awIDAQAB
+  -----END PUBLIC KEY-----
+  ```
+
+  __NOTICE:__
+
+  Start from __Navicat Premium 12.1.11__, Navicat do not load the public key through the method I talked before. Of course, the public key is still stored in `libcc.dll`. When Navicat starts, it encrypts the public key by an 8-bytes-long XOR key and stores the ciphertext in static area. When verifing __Activation Code__, Navicat will regenerate the 8-bytes-long XOR key and decrypts the ciphertext in static area to get the public key.
+
+  In `libcc.dll`, x64 version, you can find some instructions that looks like:
+
+  ```asm
+  xor eax, 'M'
+  mov byte_xxxxxx, al
+  ...
+  xor eax, 'I'
+  mov byte_xxxxxx, al
+  ...
+  xor eax, 'I'
+  mov byte_xxxxxx, al
+  ...
+  xor eax, 'B'
+  mov byte_xxxxxx, al
+  ...
+  xor eax, 'I'
+  mov byte_xxxxxx, al
+  ...
+  xor eax, 'j'
+  mov byte_xxxxxx, al
+  ...
+  ...
+  ```
+
+* __Request Code__
+
+  It is a Base64 string that represents 256-bytes-long data, while the 256-bytes-long data is the cipher text of __Offline Activation Request Information__ encrypted by __Navicat Activation Public Key__.
+
+* __Offline Activation Request Information__
+
+  It is just a JSON-style ASCII string which contains 3 items. They are `"K"`, `"DI"` and `"P"` respectively, which represent __snKey__, __DeviceIdentifier__ (related with your machine), __Platform__ (OS Type).
+
+  Like
+
+  ```  
+  {"K": "xxxxxxxxxxxxxxxx", "DI": "yyyyyyyyyyyyy", "P": "WIN8"}
+  ```
+
+* __Activation Code__
+
+  It is a Base64 string that represents 256-bytes-long data, while the 256-bytes-long data is the cipher text of the __Offline Activation Response Information__ encrypted by __Navicat Activation Private Key__. So far, we don't know the official activation private key and we have to replace it in `navicat.exe` and `libcc.dll`.
+
+* __Offline Activation Response Information__
+
+  Just like __Offline Activation Request Information__, it is also a JSON-style ASCII string. But it contains 5 items. They are `"K"`, `"N"`, `"O"`, `"T"` and `"DI"` respectively.
+
+  `"K"` and `"DI"` has the same meaning that is mentioned in __Offline Activation Request Information__ and must be the same with the corresponding items in __Offline Activation Request Information__.
+
+  `"N"`, `"O"`, `"T"` represent __Name__, __Organization__, __Timestamp__ respectively. __Name__ and __Organization__ are UTF-8 strings and the type of __Timestamp__ can be string or integer. (Thanks for discoveries from @Wizr, issue #10)
+
+  `"T"` can be omitted.
+
+* __snKey__
+
+  It is a 4-block-long string, while every block is 4-chars-long.
+
+  __snKey__ is generated by 10-bytes-long data. In order to explain it easily, I use __uint8_t data[10]__ to represent the 10-bytes-long data.
+
+  1. __data[0]__ and __data[1]__ must be `0x68` and `0x2A` respectively.
+
+     These two bytes are Naivcat signature number.
+
+  2. __data[2]__, __data[3]__ and __data[4]__ can be any byte. Just set them whatever you want.
+
+  3. __data[5]__ and __data[6]__ are product language signatures.
+
+     |  Language  |  data[5]  |  data[6]  |  Discoverer     |
+     |------------|:---------:|:---------:|-----------------|
+     |  English   |  0xAC     |  0x88     |                 |
+     |  简体中文   |  0xCE     |  0x32     |                 |
+     |  繁體中文   |  0xAA     |  0x99     |                 |
+     |  日本語     |  0xAD     |  0x82     |  @dragonflylee  |
+     |  Polski    |  0xBB     |  0x55     |  @dragonflylee  |
+     |  Español   |  0xAE     |  0x10     |  @dragonflylee  |
+     |  Français  |  0xFA     |  0x20     |  @Deltafox79    |
+     |  Deutsch   |  0xB1     |  0x60     |  @dragonflylee  |
+     |  한국어     |  0xB5     |  0x60     |  @dragonflylee  |
+     |  Русский   |  0xEE     |  0x16     |  @dragonflylee  |
+     |  Português |  0xCD     |  0x49     |  @dragonflylee  |
+
+  4. __data[7]__ is Navicat product ID. (Thanks @dragonflylee and @Deltafox79)
+
+     |Product Name          |Enterprise|Standard|Educational|Essentials|
+     |----------------------|:--------:|:------:|:---------:|:--------:|
+     |Navicat Report Viewer |0x0B      |        |           |          |
+     |Navicat Data Modeler 3|          |0x84    |0x85       |          |
+     |Navicat Premium       |0x65      |        |0x66       |0x67      |
+     |Navicat MySQL         |0x68      |0x69    |0x6A       |0x6B      |
+     |Navicat PostgreSQL    |0x6C      |0x6D    |0x6E       |0x6F      |
+     |Navicat Oracle        |0x70      |0x71    |0x72       |0x73      |
+     |Navicat SQL Server    |0x74      |0x75    |0x76       |0x77      |
+     |Navicat SQLite        |0x78      |0x79    |0x7A       |0x7B      |
+     |Navicat MariaDB       |0x7C      |0x7D    |0x7E       |0x7F      |
+     |Navicat MongoDB       |0x80      |0x81    |0x82       |          |
+
+  5. High 4 bits of __data[8]__ represents __major version number__. 
+   
+     Low 4 bits is unknown, but we can use it to delay activation deadline. Possible values are `0000` or `0001`.
+
+     __Example:__
+
+     For __Navicat 12 x64__: High 4 bits must be `1100`, which is the binary of number `12`.  
+     For __Navicat 11 x64__: High 4 bits must be `1011`, which is the binary of number `11`.  
+
+  6. __data[9]__ is unknown, but you can set it by `0xFD`, `0xFC` or `0xFB` if you want to use __not-for-resale license__.
+
+     According to symbol information in __Navicat 12 for Mac x64__ version:
+
+     * `0xFB` is __Not-For-Resale-30-days__ license.  
+     * `0xFC` is __Not-For-Resale-90-days__ license.  
+     * `0xFD` is __Not-For-Resale-365-days__ license.  
+     * `0xFE` is __Not-For-Resale__ license.  
+     * `0xFF` is __Site__ license.  
+
+  After `uint8_t data[10]` is ready, Navicat uses __DES__ with __ECB mode__ to encrypt the last 8 bytes of `uint8_t data[10]` which are from __data[2]__ to __data[9]__.
+
+  The DES key is:
+
+  ```cpp
+  unsigned char DESKey = { 0x64, 0xAD, 0xF3, 0x2F, 0xAE, 0xF2, 0x1A, 0x27 };
+  ```
+
+  Then use Base32 to encode `uint8_t data[10]` whose encode table is
+
+  ```cpp
+  char EncodeTable[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567";
+  ```
+
+  After encoding, you will get a 16-char-long string starting with `"NAV"`.
+
+  Finally, divide the 16-char-long string to four 4-chars-long blocks and join them with `"-"` then you will get __snKey__.
+
+## 2. Activation Process
+
+1. Check whether __snKey__ that user inputs is valid.
+
+2. After user clicks `Activate`, Navicat will start online activation first. If fails, user can choose offline activation.
+
+3. Navicat will use the __snKey__ that user inputs and some information collected from user's machine to generate __Offline Activation Request Information__. Then Navicat will encrypt it by __Navicat Activation Public Key__ and return a Base64-encoded string as __Request Code__.
+
+4. In legal way, the __Request Code__ should be sent to Navicat official activation server by a Internet-accessible computer. And Navicat official activation server will return a legal __Activation Code__.
+
+   But now, we use keygen to play the official activation server's role.
+
+   1. According to the __Request Code__, get `"DI"` value and `"K"` value.
+
+   2. Fill __Offline Activation Response Information__ with `"K"` value, name, organization name, `"DI"` value and, if need, `"T"` value. 
+
+   3. Encrypt __Offline Activation Response Information__ by __Navicat Activation Private Key__ and you will get 256-byte-long data.
+
+   4. Encode the 256-byte-long data by Base64. The result is __Activation Code__.
+
+   5. After user input __Activation Code__, offline activation is done successfully.
+

doc/how-does-it-work.zh-CN.md

@@ -0,0 +1,282 @@
+# Navicat Keygen - 注册机是怎么工作的？
+
+## 1. 关键词解释.
+
+* __Navicat激活公钥__
+
+  这是一个2048位的RSA公钥，Navicat使用这个公钥来完成相关激活信息的加密和解密。
+
+  这个公钥被作为 __RCData__ 类型的资源储存在 __navicat.exe__ 当中。资源名为`"ACTIVATIONPUBKEY"`。你可以使用一个叫[Resource Hacker](http://www.angusj.com/resourcehacker/)的软件来查看它。这个公钥的具体内容为：
+
+  ```
+  -----BEGIN PUBLIC KEY-----  
+  MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAw1dqF3SkCaAAmMzs889I  
+  qdW9M2dIdh3jG9yPcmLnmJiGpBF4E9VHSMGe8oPAy2kJDmdNt4BcEygvssEfginv  
+  a5t5jm352UAoDosUJkTXGQhpAWMF4fBmBpO3EedG62rOsqMBgmSdAyxCSPBRJIOF  
+  R0QgZFbRnU0frj34fiVmgYiLuZSAmIbs8ZxiHPdp1oD4tUpvsFci4QJtYNjNnGU2  
+  WPH6rvChGl1IRKrxMtqLielsvajUjyrgOC6NmymYMvZNER3htFEtL1eQbCyTfDmt  
+  YyQ1Wt4Ot12lxf0wVIR5mcGN7XCXJRHOFHSf1gzXWabRSvmt1nrl7sW6cjxljuuQ  
+  awIDAQAB  
+  -----END PUBLIC KEY-----  
+  ```
+
+  如果您有相应的私钥并乐意公开的话欢迎联系我，我将非常感谢您的慷慨。
+
+  __注意：__
+
+  从 __Navicat Premium 12.0.25__ 开始，Navicat不再从`navicat.exe`的资源中加载私钥。事实上，公钥转为从`libcc.dll`中加载，并且已经被加密。与此同时，为了防止被轻松地替换，加密的公钥被分到5个地方储存：
+
+  以下内容是从 __Navicat Premium x64 12.0.25 简体中文版__ 的`libcc.dll`中发现的，`libcc.dll`的SHA256值为`607e0a84c75966b00f3d12fa833e91d159e4f51ac51b6ba66f98d0c3cbefdce0`。我不保证在Navicat的其他版本中相关偏移量和下述的相同，但相关的 __字符串__ 以及 __立即数__ 是很可能找得到的。
+
+  1. 在`libcc.dll`中，文件偏移量`+0x01A12090`的地方，储存了加密公钥的第一部分，以 __字符串__ 的形式储存：  
+
+     ```
+     "D75125B70767B94145B47C1CB3C0755E  
+      7CCB8825C5DCE0C58ACF944E08280140  
+      9A02472FAFFD1CD77864BB821AE36766  
+      FEEDE6A24F12662954168BFA314BD950  
+      32B9D82445355ED7BC0B880887D650F5" 
+     ```
+
+  2. 在`libcc.dll`中，文件偏移量`+0x0059D799`的地方，储存了加密公钥的第二部分，以 __立即数__ 的形式储存在一条指令中：
+
+     ```
+     0xFE 0xEA 0xBC 0x01
+     ```
+
+     相应的十进制值为: `29158142`
+
+  3. 在`libcc.dll`中，文件偏移量`+0x01A11DA0`的地方，储存了加密公钥的第三部分，以 __字符串__ 的形式储存：
+
+     ```
+     "E1CED09B9C2186BF71A70C0FE2F1E0AE  
+      F3BD6B75277AAB20DFAF3D110F75912B  
+      FB63AC50EC4C48689D1502715243A79F  
+      39FF2DE2BF15CE438FF885745ED54573  
+      850E8A9F40EE2FF505EB7476F95ADB78  
+      3B28CA374FAC4632892AB82FB3BF4715  
+      FCFE6E82D03731FC3762B6AAC3DF1C3B  
+      C646FE9CD3C62663A97EE72DB932A301  
+      312B4A7633100C8CC357262C39A2B3A6  
+      4B224F5276D5EDBDF0804DC3AC4B8351  
+      62BB1969EAEBADC43D2511D6E0239287  
+      81B167A48273B953378D3D2080CC0677  
+      7E8A2364F0234B81064C5C739A8DA28D  
+      C5889072BF37685CBC94C2D31D0179AD  
+      86D8E3AA8090D4F0B281BE37E0143746  
+      E6049CCC06899401264FA471C016A96C  
+      79815B55BBC26B43052609D9D175FBCD  
+      E455392F10E51EC162F51CF732E6BB39  
+      1F56BBFD8D957DF3D4C55B71CEFD54B1  
+      9C16D458757373E698D7E693A8FC3981  
+      5A8BF03BA05EA8C8778D38F9873D62B4  
+      460F41ACF997C30E7C3AF025FA171B5F  
+      5AD4D6B15E95C27F6B35AD61875E5505  
+      449B4E"
+     ```
+
+  4. 在`libcc.dll`中，文件偏移量`+0x0059D77F`的地方，储存了加密公钥的第四部分，以 __立即数__ 的形式储存在一条指令中：
+
+      ```
+      0x59 0x08 0x01 0x00
+      ```
+
+     相应的十进制值为: `67673`
+
+  5. 在`libcc.dll`中，文件偏移量`+0x01A11D8C`的地方，储存了加密公钥的第五部分，以 __字符串__ 的形式储存：
+
+      ```
+      "92933"
+      ```
+
+  这五部分按照`"%s%d%s%d%s"`的形式输出则为加密的公钥，顺序和上述的顺序相同，具体的输出为：
+
+  ```
+
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
+
+  ```
+
+  这个加密的公钥可以用我的另外一个repo（[how-does-navicat-encrypt-password](https://github.com/DoubleLabyrinth/how-does-navicat-encrypt-password)）解密，其中密钥为`b'23970790'`。
+
+  例如：
+
+  ```cmd
+  E:\GitHub>git clone https://github.com/DoubleLabyrinth/how-does-navicat-encrypt-password.git
+  ...
+  E:\GitHub>cd how-does-navicat-encrypt-password\python3
+  E:\GitHub\how-does-navicat-encrypt-password\python3>python
+  Python 3.6.3 (v3.6.3:2c5fed8, Oct  3 2017, 18:11:49) [MSC v.1900 64 bit (AMD64)] on win32
+  Type "help", "copyright", "credits" or "license" for more information.
+  >>> from NavicatCrypto import *
+  >>> cipher = Navicat11Crypto(b'23970790')
+  >>> print(cipher.DecryptString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
+  -----BEGIN PUBLIC KEY-----
+  MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAw1dqF3SkCaAAmMzs889I
+  qdW9M2dIdh3jG9yPcmLnmJiGpBF4E9VHSMGe8oPAy2kJDmdNt4BcEygvssEfginv
+  a5t5jm352UAoDosUJkTXGQhpAWMF4fBmBpO3EedG62rOsqMBgmSdAyxCSPBRJIOF
+  R0QgZFbRnU0frj34fiVmgYiLuZSAmIbs8ZxiHPdp1oD4tUpvsFci4QJtYNjNnGU2
+  WPH6rvChGl1IRKrxMtqLielsvajUjyrgOC6NmymYMvZNER3htFEtL1eQbCyTfDmt
+  YyQ1Wt4Ot12lxf0wVIR5mcGN7XCXJRHOFHSf1gzXWabRSvmt1nrl7sW6cjxljuuQ
+  awIDAQAB
+  -----END PUBLIC KEY-----
+  ```
+
+  __注意：__
+
+  从 __Navicat Premium 12.1.11__ 开始，Navicat不再用上面说的方法加载密钥。当然密钥还是储存在`libcc.dll`文件中。当Navicat启动时，它会用8字节长的XOR密钥来加密公钥，并储存到一个静态数据区中。当验证 __激活码__ 时，Navicat会重新生成一样的8字节XOR密钥，并解密在静态储存区中的密文，从而获取公钥。
+
+  在`libcc.dll`，x64版本中，你会看到如下的几条指令：
+
+  ```asm
+  xor eax, 'M'
+  mov byte_xxxxxx, al
+  ...
+  xor eax, 'I'
+  mov byte_xxxxxx, al
+  ...
+  xor eax, 'I'
+  mov byte_xxxxxx, al
+  ...
+  xor eax, 'B'
+  mov byte_xxxxxx, al
+  ...
+  xor eax, 'I'
+  mov byte_xxxxxx, al
+  ...
+  xor eax, 'j'
+  mov byte_xxxxxx, al
+  ...
+  ...
+  ```
+
+* __请求码__
+
+  这是一个Base64编码的字符串，代表的是长度为256字节的数据。这256字节的数据是 __离线激活信息__ 用 __Navicat激活公钥__ 加密的密文。
+
+* __离线激活请求信息__
+
+  这是一个JSON风格的字符串。它包含了3个Key：`"K"`、`"DI"`和`"P"`，分别代表 __序列号__、__设备识别码__（与你的电脑硬件信息相关）和 __平台__ (其实就是操作系统类型)。
+
+  例如：  
+
+  ```  
+  {"K": "xxxxxxxxxxxxxxxx", "DI": "yyyyyyyyyyyyy", "P": "WIN8"}
+  ```
+
+* __激活码__
+
+  这是一个Base64编码的字符串，代表的是长度为256字节的数据。这256字节的数据是 __离线激活回复信息__ 用 __Navicat激活私钥__ 加密的密文。目前我们不知道官方的 __Navicat激活私钥__，所以我们得替换掉软件里的公钥。
+
+* __离线激活回复信息__
+
+  和 __离线激活请求信息__ 一样，它也是一个JSON风格的字符串。但是它包含5个Key，分别为`"K"`、`"N"`、`"O"`、`"T"` 和 `"DI"`.
+
+  `"K"` 和 `"DI"` 的意义与 __离线激活请求信息__ 中的相同，且Value必须与 __离线激活请求信息__ 中的相同。
+
+  `"N"`、`"O"`、`"T"` 分别代表 __注册名__、__组织__、__授权时间__。
+  
+  __注册名__ 和 __组织__ 的值类型为UTF-8编码的字符串。__授权时间__ 的值类型可以为字符串或整数（感谢@Wizr在issue #10中的报告）。
+
+    `"T"` 可以被省略。
+
+* __序列号__
+
+  这是一个被分为了4个部分的字符串，其中每个部分都是4个字符长。
+
+  __序列号__ 是通过10个字节的数据来生成的。为了表达方便，我用 __uint8_t data[10]__ 来表示这10个字节。
+
+  1. __data[0]__ 和 __data[1]__ 必须分别为 `0x68` 和 `0x2A`。
+
+     这两个字节为Navicat的标志数。
+
+  2. __data[2]__、__data[3]__ 和 __data[4]__ 可以是任意字节，你想设成什么都行。
+
+  3. __data[5]__ 和 __data[6]__ 是Navicat的语言标志，值如下：
+
+     |  语言类型   |  data[5]  |  data[6]  |  发现者         |
+     |------------|:---------:|:---------:|-----------------|
+     |  English   |  0xAC     |  0x88     |                 |
+     |  简体中文   |  0xCE     |  0x32     |                 |
+     |  繁體中文   |  0xAA     |  0x99     |                 |
+     |  日本語     |  0xAD     |  0x82     |  @dragonflylee  |
+     |  Polski    |  0xBB     |  0x55     |  @dragonflylee  |
+     |  Español   |  0xAE     |  0x10     |  @dragonflylee  |
+     |  Français  |  0xFA     |  0x20     |  @Deltafox79    |
+     |  Deutsch   |  0xB1     |  0x60     |  @dragonflylee  |
+     |  한국어     |  0xB5     |  0x60     |  @dragonflylee  |
+     |  Русский   |  0xEE     |  0x16     |  @dragonflylee  |
+     |  Português |  0xCD     |  0x49     |  @dragonflylee  |
+
+  4. __data[7]__ 是Navicat产品ID。（感谢 @dragonflylee 和 @Deltafox79提供的数据）
+
+     |产品名                 |Enterprise|Standard|Educational|Essentials|
+     |----------------------|:--------:|:------:|:---------:|:--------:|
+     |Navicat Report Viewer |0x0B      |        |           |          |
+     |Navicat Data Modeler 3|          |0x84    |0x85       |          |
+     |Navicat Premium       |0x65      |        |0x66       |0x67      |
+     |Navicat MySQL         |0x68      |0x69    |0x6A       |0x6B      |
+     |Navicat PostgreSQL    |0x6C      |0x6D    |0x6E       |0x6F      |
+     |Navicat Oracle        |0x70      |0x71    |0x72       |0x73      |
+     |Navicat SQL Server    |0x74      |0x75    |0x76       |0x77      |
+     |Navicat SQLite        |0x78      |0x79    |0x7A       |0x7B      |
+     |Navicat MariaDB       |0x7C      |0x7D    |0x7E       |0x7F      |
+     |Navicat MongoDB       |0x80      |0x81    |0x82       |          |
+
+  5. __data[8]__ 的高4位代表 __版本号__。低4位未知，但可以用来延长激活期限，可取的值有`0000`和`0001`。
+
+     例如：
+
+     对于 __Navicat 12__: 高4位必须是`1100`，为`12`的二进制形式。  
+     对于 __Navicat 11__: 高4位必须是`1011`，为`11`的二进制形式。  
+
+  6. __data[9]__ 目前暂未知，但如果你想要 __not-for-resale license__ 的话可以设成`0xFD`、`0xFC`或`0xFB`。
+
+     根据 __Navicat 12 for Mac x64__ 版本残留的符号信息可知：
+
+     * `0xFB`是 __Not-For-Resale-30-days__ license.  
+     * `0xFC`是 __Not-For-Resale-90-days__ license.  
+     * `0xFD`是 __Not-For-Resale-365-days__ license.  
+     * `0xFE`是 __Not-For-Resale__ license.  
+     * `0xFF`是 __Site__ license.  
+
+  之后Navicat使用 __ECB__ 模式的 __DES__ 算法来加密 __data[10]__ 的后8字节，也就是 __data[2]__ 到 __data[9]__ 的部分。
+
+  相应的DES密钥为：
+
+  ```cpp
+  unsigned char DESKey = { 0x64, 0xAD, 0xF3, 0x2F, 0xAE, 0xF2, 0x1A, 0x27 };
+  ```
+
+  之后使用Base32编码 __data[10]__，其中编码表改为：
+
+  ```cpp
+  char EncodeTable[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567";
+  ```
+
+  编码之后你应该会得到一个16字节长的字符串，并且以"NAV"打头。
+
+  将16字节的字符串分成4个4字节的小块，然后用`"-"`连接就可以得到 __序列号__。
+
+## 2. 激活过程
+
+  1. 检查用户输入的 __序列号__ 是否合法。
+
+  2. 在用户点击了`激活`按钮之后，Navicat会先尝试在线激活。如果失败，用户可以选择离线激活。
+
+  3. Navicat会使用用户输入的 __序列号__ 以及从用户电脑收集来的信息生成 __离线激活请求信息__，然后用 __Navicat激活公钥__ 加密，并将密文用Base64编码，最后得到 __请求码__。
+
+  4. 正常流程下，__请求码__ 应该通过可联网的电脑发送给Navicat的官方激活服务器。之后Navicat的官方激活服务器会返回一个合法的 __激活码__。
+
+     但现在我们使用注册机来扮演官方激活服务器的角色，只是Navicat软件里的激活公钥得换成自己的公钥：
+
+     1. 根据 __请求码__, 获得`"DI"`值和`"K"`值。
+
+     2. 用`"K"`值、用户名、组织名和`"DI"`值填写 __离线激活回复信息__。
+
+     3. 用自己的2048位RSA私钥加密 __离线激活回复信息__，你将会得到256字节的密文。
+
+     4. 用Base64编码这256字节的密文，就可以得到 __激活码__。
+
+     5. 在Navicat软件中填入 __激活码__ 即可完成离线激活。
+

doc/how-to-build.md

@@ -0,0 +1,56 @@
+# Navicat Keygen - How to build?
+
+[中文版](how-to-build.zh-CN.md)
+
+## 1. Prerequisites
+
+1. Please make sure that you have __Visual Studio 2019__ or the higher. Because this is a VS2019 project.
+
+2. Please make sure you have installed `vcpkg` and the following libraries:
+
+   * `capstone[x86]:x64-windows-static`
+   * `capstone[x86]:x86-windows-static`
+   * `keystone:x64-windows-static`
+   * `keystone:x86-windows-static`
+   * `openssl-windows:x64-windows-static`
+   * `openssl-windows:x86-windows-static`
+   * `rapidjson:x64-windows-static`
+   * `rapidjson:x86-windows-static`
+
+   is installed.
+
+   You can install them by:
+
+   ```console
+   $ vcpkg install capstone[x86]:x64-windows-static
+   $ vcpkg install capstone[x86]:x86-windows-static
+   $ vcpkg install keystone:x64-windows-static
+   $ vcpkg install keystone:x86-windows-static
+   $ vcpkg install openssl-windows:x64-windows-static
+   $ vcpkg install openssl-windows:x86-windows-static
+   $ vcpkg install rapidjson:x64-windows-static
+   $ vcpkg install rapidjson:x86-windows-static
+   ```
+
+3. Your `vcpkg` has been integrated into your __Visual Studio__, which means you have run 
+
+   ```console
+   $ vcpkg integrate install
+   ```
+
+   successfully.
+
+## 2. Build
+
+1. Open this project in __Visual Studio__.
+
+2. Select `Release` configuration. 
+
+3. Select `Win32` to build keygen/patcher for 32-bits Navicat.
+
+   Or select `x64` to build keygen/patcher for 64-bits Navicat.
+
+4. Select __Build > Build Solution__.
+
+You will see executable files in `bin/` directory. 
+

doc/how-to-build.zh-CN.md

@@ -0,0 +1,50 @@
+# Navicat Keygen - 如何编译？
+
+## 1. 前提条件
+
+1. 请确保你有 __Visual Studio 2019__ 或者更高版本。因为这是一个VS2019项目。
+
+2. 请确保你安装了 `vcpkg` 以及下面几个库：
+
+   * `capstone[x86]:x64-windows-static`
+   * `capstone[x86]:x86-windows-static`
+   * `keystone:x64-windows-static`
+   * `keystone:x86-windows-static`
+   * `openssl-windows:x64-windows-static`
+   * `openssl-windows:x86-windows-static`
+   * `rapidjson:x64-windows-static`
+   * `rapidjson:x86-windows-static`
+
+   你可以通过下面的命令来安装它们：
+
+   ```console
+   $ vcpkg install capstone[x86]:x64-windows-static
+   $ vcpkg install capstone[x86]:x86-windows-static
+   $ vcpkg install keystone:x64-windows-static
+   $ vcpkg install keystone:x86-windows-static
+   $ vcpkg install openssl-windows:x64-windows-static
+   $ vcpkg install openssl-windows:x86-windows-static
+   $ vcpkg install rapidjson:x64-windows-static
+   $ vcpkg install rapidjson:x86-windows-static
+   ```
+
+3. 你的 `vcpkg` 已经和你的 __Visual Studio__ 集成了，即你曾成功运行了：
+
+   ```console
+   $ vcpkg integrate install
+   ```
+
+## 2. 编译
+
+1. 在 __Visual Studio__ 打开这个项目。
+
+2. 选择 `Release` 配置。
+
+3. 选择 `Win32` 来生成供32位Navicat使用的keygen/patcher。
+
+   或者选择 `x64` 来生成供64位Navicat使用的keygen/patcher。
+
+4. 选择 __生成 > 生成解决方案__。
+
+生成完成后，你会在 `bin/` 文件夹下看到编译后的keygen/patcher。
+

doc/how-to-use.linux.md

@@ -0,0 +1,257 @@
+# Navicat Keygen - How to use? (Linux)
+
+[中文版](how-to-use.linux.zh-CN.md)
+
+* Maintainer(s): zenuo, DoubleLabyrinth
+
+---
+
+> You can download [Screen recoding](image/Screen_recording.mp4) for references.
+
+1. Switch to the path you extracted the installation package. Run Navicat, for initialization:
+
+   ```console
+   $ cd ~/navicat121_premium_en_x64
+   $ ./start_navicat
+   ```
+
+   When running for the first time, you will be prompted with the following two windows, click "Cancel" to:
+
+   ![](image/Screenshot_2019-04-30_12-31-33.png)
+
+   ![](image/Screenshot_2019-04-30_12-31-52.png)
+
+   Until the `Registration` window appears, select `Trial`, close Navicat after loading is complete, and execute `Step 2`:
+
+   ![](image/Screenshot_2019-04-30_12-32-43.png)
+
+2. Download the latest release [from here](https://github.com/DoubleLabyrinth/navicat-keygen/releases), and extract:
+
+   > The 64-bit executable file is downloaded here. If you use 32-bit, please download the corresponding version.
+
+   ```console
+   $ curl -O -L https://github.com/DoubleLabyrinth/navicat-keygen/releases/latest/download/navicat-keygen-for-x64.zip
+   $ unzip navicat-keygen-for-x64.zip
+   ```
+
+3. Download `navicat-pacther.sh` and `navicat-keygen.sh`:
+
+   ```console
+   $ curl -O -L https://raw.githubusercontent.com/DoubleLabyrinth/navicat-keygen/windows/bash/navicat-patcher.sh
+   $ chmod +x navicat-patcher.sh
+   $ curl -O -L https://raw.githubusercontent.com/DoubleLabyrinth/navicat-keygen/windows/bash/navicat-keygen.sh
+   $ chmod +x navicat-keygen.sh
+   ```
+
+4. Use `navicat-patcher.exe` to replace __Navicat Activation Public Key__ that is stored in `navicat.exe` or `libcc.dll`.
+
+   > Please turn off `Navicat` when performing this step.
+
+   ```console
+   $ ./navicat-patcher.sh
+   ```
+
+   It has been tested on __Navicat Premium 12.1.22 Simplified Chinese version__. The following is an example of output:
+
+   ```
+   ***************************************************
+   *       Navicat Patcher by @DoubleLabyrinth       *
+   *                  Version: 4.0                   *
+   ***************************************************
+
+   Press Enter to continue or Ctrl + C to abort.
+
+   [+] Try to open Navicat.exe ... Ok!
+   [+] Try to open libcc.dll ... Ok!
+
+   [+] PatchSolution0 ...... Ready to apply
+       [*] Patch offset = +0x029bccd8
+   [+] PatchSolution1 ...... Ready to apply
+       [*] [0] Patch offset = +0x02206c00
+       [*] [1] Patch offset = +0x0074c489
+       [*] [2] Patch offset = +0x02206910
+       [*] [3] Patch offset = +0x0074c46f
+       [*] [4] Patch offset = +0x02206904
+   [-] PatchSolution2 ...... Omitted
+   [+] PatchSolution3 ...... Ready to apply
+       [*] [  0] Instruction RVA = 0x016539c8, Patch Offset = +0x023e64d4
+       [*] [  1] Instruction RVA = 0x01653a1f, Patch Offset = +0x01652e23
+       [*] [  2] Instruction RVA = 0x01653a25, Patch Offset = +0x01652e28
+       [*] [  3] Instruction RVA = 0x01653a8c, Patch Offset = +0x01652e8e
+       ...
+       ...
+       ...
+       [*] [108] Instruction RVA = 0x016604e1, Patch Offset = +0x023e66d8
+       [*] [109] Instruction RVA = 0x01660518, Patch Offset = +0x0165f91c
+       [*] [110] Instruction RVA = 0x0166051e, Patch Offset = +0x0165f921
+
+   [*] PatchSolution0 is suppressed in order to keep digital signature valid.
+
+   [*] Generating new RSA private key, it may take a long time...
+   [*] Your RSA public key:
+   -----BEGIN PUBLIC KEY-----
+   MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1hV66HgU4LrKXWW6O7bK
+   AN6ZTr5W+Mq8ClTQ+Pc+BdhLu6rww55kVq7OXKGpvx0G4eTafYMGrrBETgDSTaMq
+   Bx+8bZbGBWh2LtNfqU+xUrpHHBSz0ByBc3iTEzzthJl+Fzf8suDX2lWYIc/Ym/eW
+   YtxdJ7xOzLb68z4N0zVmA0jFX2FOm75DRYgKqy4SGixapfucL9dVaWVLTUdbrVdj
+   4LX78t4t5ykbYoThrat4yuLvj/BxLaQ6ivKD+ScfHdtCoY+NA5jmBoUfBq3Q1SXB
+   iNaoXctbi0/H3MiPu0cRojryAocooF89yFm5/mNnzWGAYPr6DvBI8CDTZmjaQ4oC
+   aQIDAQAB
+   -----END PUBLIC KEY-----
+
+   *******************************************************
+   *                   PatchSolution1                    *
+   *******************************************************
+   [*] Previous:
+   +0x0000000002206c00  44 37 35 31 32 35 42 37 30 37 36 37 42 39 34 31  D75125B70767B941
+   +0x0000000002206c10  34 35 42 34 37 43 31 43 42 33 43 30 37 35 35 45  45B47C1CB3C0755E
+   +0x0000000002206c20  37 43 43 42 38 38 32 35 43 35 44 43 45 30 43 35  7CCB8825C5DCE0C5
+   ...
+   ...
+   [*] After:
+   +0x0000000002206c00  33 43 32 39 30 39 35 38 33 34 38 41 42 43 35 39  3C290958348ABC59
+   +0x0000000002206c10  36 44 39 30 43 45 45 38 31 36 42 36 39 38 34 44  6D90CEE816B6984D
+   +0x0000000002206c20  35 32 35 34 37 45 30 32 34 31 42 36 42 43 31 41  52547E0241B6BC1A
+   ...
+   ...
+
+   [*] Previous:
+   +0x000000000074c480                             fe ea bc 01                    ....
+   [*] After:
+   +0x000000000074c480                             08 00 00 00                    ....
+
+   [*] Previous:
+   +0x0000000002206910  45 31 43 45 44 30 39 42 39 43 32 31 38 36 42 46  E1CED09B9C2186BF
+   +0x0000000002206920  37 31 41 37 30 43 30 46 45 32 46 31 45 30 41 45  71A70C0FE2F1E0AE
+   +0x0000000002206930  46 33 42 44 36 42 37 35 32 37 37 41 41 42 32 30  F3BD6B75277AAB20
+   ...
+   ...
+   [*] After:
+   +0x0000000002206910  41 33 39 42 41 36 43 34 31 36 33 32 35 30 46 45  A39BA6C4163250FE
+   +0x0000000002206920  42 32 41 39 31 41 34 32 46 44 42 46 30 41 32 31  B2A91A42FDBF0A21
+   +0x0000000002206930  33 34 46 34 36 44 43 45 34 30 42 46 41 42 33 35  34F46DCE40BFAB35
+   ...
+   ...
+
+   [*] Previous:
+   +0x000000000074c460                                               59                 Y
+   +0x000000000074c470  08 01 00                                         ...
+   [*] After:
+   +0x000000000074c460                                               06                 .
+   +0x000000000074c470  00 00 00                                         ...
+
+   [*] Previous:
+   +0x0000000002206900              39 32 39 33 33                           92933
+   [*] After:
+   +0x0000000002206900              42 34 34 33 38                           B4438
+
+   *******************************************************
+   *                   PatchSolution3                    *
+   *******************************************************
+   [*] +023e64d4: 4d 49 49 ---> 4d 49 49
+   [*] +01652e23: 42 49 ---> 42 49
+   [*] +01652e28: 6a ---> 6a
+   ...
+   ...
+   ...
+   [*] +023e66d8: 77 49 44 41 ---> 51 49 44 41
+   [*] +0165f91c: 51 41 ---> 51 41
+   [*] +0165f921: 42 ---> 42
+
+   [*] New RSA-2048 private key has been saved to
+   C:\Users\DoubleSine\github.com\navicat-keygen\bin\x64-Release\RegPrivateKey.pem
+
+   *******************************************************
+   *           PATCH HAS BEEN DONE SUCCESSFULLY!         *
+   *                  HAVE FUN AND ENJOY~                *
+   *******************************************************
+   ```
+
+5. Then use `navicat-keygen.exe` to generate __snKey__ and __Activation Code__
+
+   ```console
+   $ ./navicat-keygen.sh
+   ```
+
+   You will be asked to select Navicat product, language and input major version number. After that an randomly generated __snKey__ will be given.
+
+   ```
+   Select Navicat product:
+   0. DataModeler
+   1. Premium
+   2. MySQL
+   3. PostgreSQL
+   4. Oracle
+   5. SQLServer
+   6. SQLite
+   7. MariaDB
+   8. MongoDB
+   9. ReportViewer
+
+   (Input index)> 1
+
+   Select product language:
+   0. English
+   1. Simplified Chinese
+   2. Traditional Chinese
+   3. Japanese
+   4. Polish
+   5. Spanish
+   6. French
+   7. German
+   8. Korean
+   9. Russian
+   10. Portuguese
+
+   (Input index)> 1
+
+   (Input major version number, range: 0 ~ 15, default: 12)> 12
+
+   Serial number:
+   NAVO-2ORP-IN5A-GQEE
+
+   Your name: 
+   ```
+
+   You can use this __snKey__ to activate your Navicat preliminarily.
+     
+   Then you will be asked to input `Your name` and `Your organization`. Just set them whatever you want, but not too long.
+
+   ```
+   Your name: DoubleLabyrinth
+   Your organization: DoubleLabyrinth
+   Input request code (in Base64), input empty line to end:
+   ```
+     
+   After that, you will be asked to input the request code. Now __DO NOT CLOSE KEYGEN__.
+
+6. __Set up__ a invalid proxy. Find and click `Registration`. Fill `Registration Key` by __snKey__ that the keygen gave and click `Activate`.
+
+7. Online activation will failed and Navicat will ask you do `Manual Activation`, just choose it.
+
+8. Copy your request code and paste it in the keygen. Input empty line to tell the keygen that your input ends.
+
+   ```
+   Your name: DoubleLabyrinth
+   Your organization: DoubleLabyrinth
+
+   Input request code (in Base64), input empty line to end:
+   t2U+0yfE2FfnbjyhCXa0lglZOHu9Ntc3qyGiPbR6xb1QoU63/9BVfdaCq0blwVycXPyT/Vqw5joIKdM5oCRR/afCPM7iRcyhQMAnvqwc+AOKCqayVV+SqKLvtR/AbREI12w++PQ6Ewfs4A8PgB8OJ9G0jKt6Q/iJRblqi2WWw9mwy+YHcYYh3UAfygTnyj/xl+MzRymbY0lkus+6LPtpDecVsFFhM7F32Ee1QPwISko7bAkHOtkt+joPfYDdn9PDGZ4HEmeLvH6UqZCXkzgaAfynB7cQZFEkId8FsW2NGkbpM7wB2Hi3fNFgOIjutTprixTdbpFKn4w6gGc28ve23A==
+
+   Request Info:
+   {"K":"NAVO2ORPIN5AGQEE", "DI":"R91j6WyMhxHznAKSxxxx", "P":"WIN"}
+
+   Response Info:
+   {"K":"NAVO2ORPIN5AGQEE","DI":"R91j6WyMhxHznAKSxxxx","N":"DoubleLabyrinth","O":"DoubleLabyrinth","T":1547826060}
+
+   License:
+   lRF18o+ZhBphyN0U5kFLHtAAGGXuvhqOcxNuvAk4dJcGeR0ISuw74mQvAfdNjv0T
+   I5NZFzqIJvrzM0XeR88q+3kmZkECuxwwWHP3zzDPhPiylcTV4DoGZ1tfoViUSYQc
+   LgXG0Fl7koZeP61YOKQ8GfX+Xk2ZTM64bYaF7NlhonM+GQUJCCF2JThmrP921t2p
+   b/E5pV6fLOYMM13881ZQcQcltMNVDZn4lzgzKRFFxCQFaTl6fJMHZdYVmICQTHtI
+   sNaym0zduc8/cv34mgJ+7NseXmsEPCdjrZ59wgfPsLhZLXqtfxi5hGWw4NMa3Sb2
+   UI8dzqFzRp/hSDEM0mEqiA==
+   ```
+
+9. Finally, you will get __Activation Code__ which looks like a Base64 string. Just copy it and paste it in Navicat `Manual Activation` window, then click `Activate`. If nothing wrong, activation should be done successfully. Don't forget to close the proxy that we just set up.
+

doc/how-to-use.linux.zh-CN.md

@@ -0,0 +1,255 @@
+# Navicat Keygen - 如何使用这个注册机？ (Linux)
+
+* 维护者：zenuo, DoubleLabyrinth
+
+---
+
+> 可下载[录屏文件](image/Screen_recording.mp4)参考
+
+1. 切换到解压安装包的路径，本示例解压到了 `家目录`，运行Navicat，使其初始化环境：
+
+    ```console
+    $ cd ~/navicat121_premium_en_x64
+    $ ./start_navicat
+    ```
+
+    首次启动时，会提示如下两个窗口，点击“Cancel”即可：
+
+    ![](image/Screenshot_2019-04-30_12-31-33.png)
+
+    ![](image/Screenshot_2019-04-30_12-31-52.png)
+
+    直至出现 `Registration` 窗口，选择 `Trial`，待加载完成后关闭Navicat，执行 `步骤2`：
+
+    ![](image/Screenshot_2019-04-30_12-32-43.png)
+
+2. [从这里](https://github.com/DoubleLabyrinth/navicat-keygen/releases)下载最新的release，并且解压：
+
+    > 此处下载的是64位的可执行文件，若您使用32位，请下载对应版本
+
+    ```console
+    $ curl -O -L https://github.com/DoubleLabyrinth/navicat-keygen/releases/latest/download/navicat-keygen-for-x64.zip
+    $ unzip navicat-keygen-for-x64.zip
+    ```
+
+3. 下载 `navicat-pacther.sh` 和 `navicat-keygen.sh`：
+
+    ```console
+    $ curl -O -L https://raw.githubusercontent.com/DoubleLabyrinth/navicat-keygen/windows/bash/navicat-patcher.sh
+    $ chmod +x navicat-patcher.sh
+    $ curl -O -L https://raw.githubusercontent.com/DoubleLabyrinth/navicat-keygen/windows/bash/navicat-keygen.sh
+    $ chmod +x navicat-keygen.sh
+    ```
+
+4. 使用 `navicat-patcher.exe` 替换掉 `navicat.exe` 和 `libcc.dll` 里的Navicat激活公钥。 
+
+   > 执行此步骤时，请将Navicat关闭
+
+   ```console
+   $ ./navicat-patcher.sh
+   ```
+   
+   __Navicat Premium 12.1.22 简体中文版已通过测试__。下面将是一份样例输出：
+
+   ```
+   ***************************************************
+   *       Navicat Patcher by @DoubleLabyrinth       *
+   *                  Version: 4.0                   *
+   ***************************************************
+
+   Press Enter to continue or Ctrl + C to abort.
+
+   [+] Try to open Navicat.exe ... Ok!
+   [+] Try to open libcc.dll ... Ok!
+
+   [+] PatchSolution0 ...... Ready to apply
+       [*] Patch offset = +0x029bccd8
+   [+] PatchSolution1 ...... Ready to apply
+       [*] [0] Patch offset = +0x02206c00
+       [*] [1] Patch offset = +0x0074c489
+       [*] [2] Patch offset = +0x02206910
+       [*] [3] Patch offset = +0x0074c46f
+       [*] [4] Patch offset = +0x02206904
+   [-] PatchSolution2 ...... Omitted
+   [+] PatchSolution3 ...... Ready to apply
+       [*] [  0] Instruction RVA = 0x016539c8, Patch Offset = +0x023e64d4
+       [*] [  1] Instruction RVA = 0x01653a1f, Patch Offset = +0x01652e23
+       [*] [  2] Instruction RVA = 0x01653a25, Patch Offset = +0x01652e28
+       [*] [  3] Instruction RVA = 0x01653a8c, Patch Offset = +0x01652e8e
+       ...
+       ...
+       ...
+       [*] [108] Instruction RVA = 0x016604e1, Patch Offset = +0x023e66d8
+       [*] [109] Instruction RVA = 0x01660518, Patch Offset = +0x0165f91c
+       [*] [110] Instruction RVA = 0x0166051e, Patch Offset = +0x0165f921
+
+   [*] PatchSolution0 is suppressed in order to keep digital signature valid.
+
+   [*] Generating new RSA private key, it may take a long time...
+   [*] Your RSA public key:
+   -----BEGIN PUBLIC KEY-----
+   MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1hV66HgU4LrKXWW6O7bK
+   AN6ZTr5W+Mq8ClTQ+Pc+BdhLu6rww55kVq7OXKGpvx0G4eTafYMGrrBETgDSTaMq
+   Bx+8bZbGBWh2LtNfqU+xUrpHHBSz0ByBc3iTEzzthJl+Fzf8suDX2lWYIc/Ym/eW
+   YtxdJ7xOzLb68z4N0zVmA0jFX2FOm75DRYgKqy4SGixapfucL9dVaWVLTUdbrVdj
+   4LX78t4t5ykbYoThrat4yuLvj/BxLaQ6ivKD+ScfHdtCoY+NA5jmBoUfBq3Q1SXB
+   iNaoXctbi0/H3MiPu0cRojryAocooF89yFm5/mNnzWGAYPr6DvBI8CDTZmjaQ4oC
+   aQIDAQAB
+   -----END PUBLIC KEY-----
+
+   *******************************************************
+   *                   PatchSolution1                    *
+   *******************************************************
+   [*] Previous:
+   +0x0000000002206c00  44 37 35 31 32 35 42 37 30 37 36 37 42 39 34 31  D75125B70767B941
+   +0x0000000002206c10  34 35 42 34 37 43 31 43 42 33 43 30 37 35 35 45  45B47C1CB3C0755E
+   +0x0000000002206c20  37 43 43 42 38 38 32 35 43 35 44 43 45 30 43 35  7CCB8825C5DCE0C5
+   ...
+   ...
+   [*] After:
+   +0x0000000002206c00  33 43 32 39 30 39 35 38 33 34 38 41 42 43 35 39  3C290958348ABC59
+   +0x0000000002206c10  36 44 39 30 43 45 45 38 31 36 42 36 39 38 34 44  6D90CEE816B6984D
+   +0x0000000002206c20  35 32 35 34 37 45 30 32 34 31 42 36 42 43 31 41  52547E0241B6BC1A
+   ...
+   ...
+
+   [*] Previous:
+   +0x000000000074c480                             fe ea bc 01                    ....
+   [*] After:
+   +0x000000000074c480                             08 00 00 00                    ....
+
+   [*] Previous:
+   +0x0000000002206910  45 31 43 45 44 30 39 42 39 43 32 31 38 36 42 46  E1CED09B9C2186BF
+   +0x0000000002206920  37 31 41 37 30 43 30 46 45 32 46 31 45 30 41 45  71A70C0FE2F1E0AE
+   +0x0000000002206930  46 33 42 44 36 42 37 35 32 37 37 41 41 42 32 30  F3BD6B75277AAB20
+   ...
+   ...
+   [*] After:
+   +0x0000000002206910  41 33 39 42 41 36 43 34 31 36 33 32 35 30 46 45  A39BA6C4163250FE
+   +0x0000000002206920  42 32 41 39 31 41 34 32 46 44 42 46 30 41 32 31  B2A91A42FDBF0A21
+   +0x0000000002206930  33 34 46 34 36 44 43 45 34 30 42 46 41 42 33 35  34F46DCE40BFAB35
+   ...
+   ...
+
+   [*] Previous:
+   +0x000000000074c460                                               59                 Y
+   +0x000000000074c470  08 01 00                                         ...
+   [*] After:
+   +0x000000000074c460                                               06                 .
+   +0x000000000074c470  00 00 00                                         ...
+
+   [*] Previous:
+   +0x0000000002206900              39 32 39 33 33                           92933
+   [*] After:
+   +0x0000000002206900              42 34 34 33 38                           B4438
+
+   *******************************************************
+   *                   PatchSolution3                    *
+   *******************************************************
+   [*] +023e64d4: 4d 49 49 ---> 4d 49 49
+   [*] +01652e23: 42 49 ---> 42 49
+   [*] +01652e28: 6a ---> 6a
+   ...
+   ...
+   ...
+   [*] +023e66d8: 77 49 44 41 ---> 51 49 44 41
+   [*] +0165f91c: 51 41 ---> 51 41
+   [*] +0165f921: 42 ---> 42
+
+   [*] New RSA-2048 private key has been saved to
+   C:\Users\DoubleSine\github.com\navicat-keygen\bin\x64-Release\RegPrivateKey.pem
+
+   *******************************************************
+   *           PATCH HAS BEEN DONE SUCCESSFULLY!         *
+   *                  HAVE FUN AND ENJOY~                *
+   *******************************************************
+   ```
+
+5. 接下来使用`navicat-keygen.exe`来生成序列号和激活码
+
+   ```console
+   $ ./navicat-keygen.sh
+   ```
+
+   你会被要求选择Navicat产品类别、语言以及输入主版本号。之后会随机生成一个序列号。
+
+   ```
+   Select Navicat product:
+   0. DataModeler
+   1. Premium
+   2. MySQL
+   3. PostgreSQL
+   4. Oracle
+   5. SQLServer
+   6. SQLite
+   7. MariaDB
+   8. MongoDB
+   9. ReportViewer
+
+   (Input index)> 1
+
+   Select product language:
+   0. English
+   1. Simplified Chinese
+   2. Traditional Chinese
+   3. Japanese
+   4. Polish
+   5. Spanish
+   6. French
+   7. German
+   8. Korean
+   9. Russian
+   10. Portuguese
+
+   (Input index)> 1
+
+   (Input major version number, range: 0 ~ 15, default: 12)> 12
+
+   Serial number:
+   NAVO-2ORP-IN5A-GQEE
+
+   Your name: 
+   ```
+
+   你可以使用这个序列号暂时激活Navicat。
+
+   接下来你会被要求输入`用户名`和`组织名`；请随便填写，但不要太长。
+
+   ```
+   Your name: DoubleLabyrinth
+   Your organization: DoubleLabyrinth
+   Input request code (in Base64), input empty line to end:
+   ```
+ 
+   之后你会被要求填入请求码。注意 __不要关闭命令行__.
+
+6. 配置一个不存在的`代理`。找到`注册`窗口，并填入keygen给你的序列号。然后点击`激活`按钮。
+
+7. 在线激活失败，这时候Navicat会询问你是否`手动激活`，直接选吧。
+
+8. 在`手动激活`窗口你会得到一个请求码，复制它并把它粘贴到keygen里。最后别忘了连按至少两下回车结束输入。
+
+   ```
+   Your name: DoubleLabyrinth
+   Your organization: DoubleLabyrinth
+
+   Input request code (in Base64), input empty line to end:
+   t2U+0yfE2FfnbjyhCXa0lglZOHu9Ntc3qyGiPbR6xb1QoU63/9BVfdaCq0blwVycXPyT/Vqw5joIKdM5oCRR/afCPM7iRcyhQMAnvqwc+AOKCqayVV+SqKLvtR/AbREI12w++PQ6Ewfs4A8PgB8OJ9G0jKt6Q/iJRblqi2WWw9mwy+YHcYYh3UAfygTnyj/xl+MzRymbY0lkus+6LPtpDecVsFFhM7F32Ee1QPwISko7bAkHOtkt+joPfYDdn9PDGZ4HEmeLvH6UqZCXkzgaAfynB7cQZFEkId8FsW2NGkbpM7wB2Hi3fNFgOIjutTprixTdbpFKn4w6gGc28ve23A==
+
+   Request Info:
+   {"K":"NAVO2ORPIN5AGQEE", "DI":"R91j6WyMhxHznAKSxxxx", "P":"WIN"}
+
+   Response Info:
+   {"K":"NAVO2ORPIN5AGQEE","DI":"R91j6WyMhxHznAKSxxxx","N":"DoubleLabyrinth","O":"DoubleLabyrinth","T":1547826060}
+
+   License:
+   lRF18o+ZhBphyN0U5kFLHtAAGGXuvhqOcxNuvAk4dJcGeR0ISuw74mQvAfdNjv0T
+   I5NZFzqIJvrzM0XeR88q+3kmZkECuxwwWHP3zzDPhPiylcTV4DoGZ1tfoViUSYQc
+   LgXG0Fl7koZeP61YOKQ8GfX+Xk2ZTM64bYaF7NlhonM+GQUJCCF2JThmrP921t2p
+   b/E5pV6fLOYMM13881ZQcQcltMNVDZn4lzgzKRFFxCQFaTl6fJMHZdYVmICQTHtI
+   sNaym0zduc8/cv34mgJ+7NseXmsEPCdjrZ59wgfPsLhZLXqtfxi5hGWw4NMa3Sb2
+   UI8dzqFzRp/hSDEM0mEqiA==
+   ```
+
+9. 如果不出意外，你会得到一个看似用Base64编码的激活码。直接复制它，并把它粘贴到Navicat的`手动激活`窗口，最后点`激活`按钮。如果没什么意外的话应该能成功激活。别忘了关闭我们刚刚设置的不存在的代理哦。
+

doc/how-to-use.windows.md

@@ -0,0 +1,256 @@
+# Navicat Keygen - How to use? (Windows)
+
+[中文版](how-to-use.windows.zh-CN.md)
+
+1. Download the latest release [from here](https://github.com/DoubleLabyrinth/navicat-keygen/releases).
+
+2. Use `navicat-patcher.exe` to replace __Navicat Activation Public Key__ that is stored in `navicat.exe` or `libcc.dll`.
+   
+   ```
+   navicat-patcher.exe [-dry-run] <Navicat Installation Path> [RSA-2048 PEM File Path]
+   ```
+
+   * `[-dry-run]` Run patcher without applying any patches.
+
+     __This parameter is optional.__ 
+
+   * `<Navicat Installation Path>`: The full path to Navicat installation folder. 
+     
+     __This parameter must be specified.__
+
+   * `[RSA-2048 PEM File Path]`: The full path or relative path to a RSA-2048 private key file. 
+     
+     __This parameter is optional.__ If not specified, `navicat-patcher.exe` will generate a new RSA-2048 private key file `RegPrivateKey.pem` at current directory.
+
+   __Example: (in cmd.exe)__ 
+
+   ```
+   navicat-patcher.exe "C:\Program Files\PremiumSoft\Navicat Premium 12"
+   ```
+   
+   It has been tested on __Navicat Premium 12.1.22 Simplified Chinese version__. The following is an example of output.
+
+   ```
+   ***************************************************
+   *       Navicat Patcher by @DoubleLabyrinth       *
+   *                  Version: 4.0                   *
+   ***************************************************
+
+   Press Enter to continue or Ctrl + C to abort.
+
+   [+] Try to open Navicat.exe ... Ok!
+   [+] Try to open libcc.dll ... Ok!
+
+   [+] PatchSolution0 ...... Ready to apply
+       [*] Patch offset = +0x029bccd8
+   [+] PatchSolution1 ...... Ready to apply
+       [*] [0] Patch offset = +0x02206c00
+       [*] [1] Patch offset = +0x0074c489
+       [*] [2] Patch offset = +0x02206910
+       [*] [3] Patch offset = +0x0074c46f
+       [*] [4] Patch offset = +0x02206904
+   [-] PatchSolution2 ...... Omitted
+   [+] PatchSolution3 ...... Ready to apply
+       [*] [  0] Instruction RVA = 0x016539c8, Patch Offset = +0x023e64d4
+       [*] [  1] Instruction RVA = 0x01653a1f, Patch Offset = +0x01652e23
+       [*] [  2] Instruction RVA = 0x01653a25, Patch Offset = +0x01652e28
+       [*] [  3] Instruction RVA = 0x01653a8c, Patch Offset = +0x01652e8e
+       ...
+       ...
+       ...
+       [*] [108] Instruction RVA = 0x016604e1, Patch Offset = +0x023e66d8
+       [*] [109] Instruction RVA = 0x01660518, Patch Offset = +0x0165f91c
+       [*] [110] Instruction RVA = 0x0166051e, Patch Offset = +0x0165f921
+
+   [*] PatchSolution0 is suppressed in order to keep digital signature valid.
+
+   [*] Generating new RSA private key, it may take a long time...
+   [*] Your RSA public key:
+   -----BEGIN PUBLIC KEY-----
+   MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1hV66HgU4LrKXWW6O7bK
+   AN6ZTr5W+Mq8ClTQ+Pc+BdhLu6rww55kVq7OXKGpvx0G4eTafYMGrrBETgDSTaMq
+   Bx+8bZbGBWh2LtNfqU+xUrpHHBSz0ByBc3iTEzzthJl+Fzf8suDX2lWYIc/Ym/eW
+   YtxdJ7xOzLb68z4N0zVmA0jFX2FOm75DRYgKqy4SGixapfucL9dVaWVLTUdbrVdj
+   4LX78t4t5ykbYoThrat4yuLvj/BxLaQ6ivKD+ScfHdtCoY+NA5jmBoUfBq3Q1SXB
+   iNaoXctbi0/H3MiPu0cRojryAocooF89yFm5/mNnzWGAYPr6DvBI8CDTZmjaQ4oC
+   aQIDAQAB
+   -----END PUBLIC KEY-----
+
+   *******************************************************
+   *                   PatchSolution1                    *
+   *******************************************************
+   [*] Previous:
+   +0x0000000002206c00  44 37 35 31 32 35 42 37 30 37 36 37 42 39 34 31  D75125B70767B941
+   +0x0000000002206c10  34 35 42 34 37 43 31 43 42 33 43 30 37 35 35 45  45B47C1CB3C0755E
+   +0x0000000002206c20  37 43 43 42 38 38 32 35 43 35 44 43 45 30 43 35  7CCB8825C5DCE0C5
+   ...
+   ...
+   [*] After:
+   +0x0000000002206c00  33 43 32 39 30 39 35 38 33 34 38 41 42 43 35 39  3C290958348ABC59
+   +0x0000000002206c10  36 44 39 30 43 45 45 38 31 36 42 36 39 38 34 44  6D90CEE816B6984D
+   +0x0000000002206c20  35 32 35 34 37 45 30 32 34 31 42 36 42 43 31 41  52547E0241B6BC1A
+   ...
+   ...
+
+   [*] Previous:
+   +0x000000000074c480                             fe ea bc 01                    ....
+   [*] After:
+   +0x000000000074c480                             08 00 00 00                    ....
+
+   [*] Previous:
+   +0x0000000002206910  45 31 43 45 44 30 39 42 39 43 32 31 38 36 42 46  E1CED09B9C2186BF
+   +0x0000000002206920  37 31 41 37 30 43 30 46 45 32 46 31 45 30 41 45  71A70C0FE2F1E0AE
+   +0x0000000002206930  46 33 42 44 36 42 37 35 32 37 37 41 41 42 32 30  F3BD6B75277AAB20
+   ...
+   ...
+   [*] After:
+   +0x0000000002206910  41 33 39 42 41 36 43 34 31 36 33 32 35 30 46 45  A39BA6C4163250FE
+   +0x0000000002206920  42 32 41 39 31 41 34 32 46 44 42 46 30 41 32 31  B2A91A42FDBF0A21
+   +0x0000000002206930  33 34 46 34 36 44 43 45 34 30 42 46 41 42 33 35  34F46DCE40BFAB35
+   ...
+   ...
+
+   [*] Previous:
+   +0x000000000074c460                                               59                 Y
+   +0x000000000074c470  08 01 00                                         ...
+   [*] After:
+   +0x000000000074c460                                               06                 .
+   +0x000000000074c470  00 00 00                                         ...
+
+   [*] Previous:
+   +0x0000000002206900              39 32 39 33 33                           92933
+   [*] After:
+   +0x0000000002206900              42 34 34 33 38                           B4438
+
+   *******************************************************
+   *                   PatchSolution3                    *
+   *******************************************************
+   [*] +023e64d4: 4d 49 49 ---> 4d 49 49
+   [*] +01652e23: 42 49 ---> 42 49
+   [*] +01652e28: 6a ---> 6a
+   ...
+   ...
+   ...
+   [*] +023e66d8: 77 49 44 41 ---> 51 49 44 41
+   [*] +0165f91c: 51 41 ---> 51 41
+   [*] +0165f921: 42 ---> 42
+
+   [*] New RSA-2048 private key has been saved to
+   C:\Users\DoubleSine\github.com\navicat-keygen\bin\x64-Release\RegPrivateKey.pem
+
+   *******************************************************
+   *           PATCH HAS BEEN DONE SUCCESSFULLY!         *
+   *                  HAVE FUN AND ENJOY~                *
+   *******************************************************
+   ```
+
+3. Then use `navicat-keygen.exe` to generate __snKey__ and __Activation Code__
+
+   ```
+   navicat-keygen.exe <-bin|-text> [-adv] <RSA-2048 PrivateKey(PEM file)>
+   ```
+
+   * `<-bin|-text>`: Must be `-bin` or `-text`. 
+  
+     If `-bin` is specified, `navicat-keygen.exe` will finally generate `license_file`. It is used for Navicat old activation method only.
+
+     If `-text` is specified, `navicat-keygen.exe` will finally generate a Base64-style string which is __Activation Code__. It is used for Navicat new activation method. 
+
+     __This parameter must be specified.__
+
+   * `[-adv]`: Enable advanced mode.
+
+     __This parameter is optional.__ If specified, `navicat-keygen.exe` will ask you input Navicat product ID number, language signature numbers. It is for future use generally.
+
+   * `<RSA-2048 PrivateKey(PEM file)>`: The full path or relative path to a RSA-2048 private key file. 
+     
+     __This parameter must be specified.__
+
+   __Example: (in cmd.exe)__
+
+   ```console
+   navicat-keygen.exe -text .\RegPrivateKey.pem
+   ```
+
+   You will be asked to select Navicat product, language and input major version number. After that an randomly generated __snKey__ will be given.
+
+   ```
+   Select Navicat product:
+   0. DataModeler
+   1. Premium
+   2. MySQL
+   3. PostgreSQL
+   4. Oracle
+   5. SQLServer
+   6. SQLite
+   7. MariaDB
+   8. MongoDB
+   9. ReportViewer
+
+   (Input index)> 1
+
+   Select product language:
+   0. English
+   1. Simplified Chinese
+   2. Traditional Chinese
+   3. Japanese
+   4. Polish
+   5. Spanish
+   6. French
+   7. German
+   8. Korean
+   9. Russian
+   10. Portuguese
+
+   (Input index)> 1
+
+   (Input major version number, range: 0 ~ 15, default: 12)> 12
+
+   Serial number:
+   NAVO-2ORP-IN5A-GQEE
+
+   Your name: 
+   ```
+
+   You can use this __snKey__ to activate your Navicat preliminarily.
+     
+   Then you will be asked to input `Your name` and `Your organization`. Just set them whatever you want, but not too long.
+
+   ```
+   Your name: DoubleLabyrinth
+   Your organization: DoubleLabyrinth
+   Input request code (in Base64), input empty line to end:
+   ```
+     
+   After that, you will be asked to input the request code. Now __DO NOT CLOSE KEYGEN__.
+
+4. __Disconnect your network__ and open Navicat. Find and click `Registration`. Fill `Registration Key` by __snKey__ that the keygen gave and click `Activate`.
+
+5. Generally online activation will failed and Navicat will ask you do `Manual Activation`, just choose it.
+
+6. Copy your request code and paste it in the keygen. Input empty line to tell the keygen that your input ends.
+
+   ```
+   Your name: DoubleLabyrinth
+   Your organization: DoubleLabyrinth
+
+   Input request code (in Base64), input empty line to end:
+   t2U+0yfE2FfnbjyhCXa0lglZOHu9Ntc3qyGiPbR6xb1QoU63/9BVfdaCq0blwVycXPyT/Vqw5joIKdM5oCRR/afCPM7iRcyhQMAnvqwc+AOKCqayVV+SqKLvtR/AbREI12w++PQ6Ewfs4A8PgB8OJ9G0jKt6Q/iJRblqi2WWw9mwy+YHcYYh3UAfygTnyj/xl+MzRymbY0lkus+6LPtpDecVsFFhM7F32Ee1QPwISko7bAkHOtkt+joPfYDdn9PDGZ4HEmeLvH6UqZCXkzgaAfynB7cQZFEkId8FsW2NGkbpM7wB2Hi3fNFgOIjutTprixTdbpFKn4w6gGc28ve23A==
+
+   Request Info:
+   {"K":"NAVO2ORPIN5AGQEE", "DI":"R91j6WyMhxHznAKSxxxx", "P":"WIN"}
+
+   Response Info:
+   {"K":"NAVO2ORPIN5AGQEE","DI":"R91j6WyMhxHznAKSxxxx","N":"DoubleLabyrinth","O":"DoubleLabyrinth","T":1547826060}
+
+   License:
+   lRF18o+ZhBphyN0U5kFLHtAAGGXuvhqOcxNuvAk4dJcGeR0ISuw74mQvAfdNjv0T
+   I5NZFzqIJvrzM0XeR88q+3kmZkECuxwwWHP3zzDPhPiylcTV4DoGZ1tfoViUSYQc
+   LgXG0Fl7koZeP61YOKQ8GfX+Xk2ZTM64bYaF7NlhonM+GQUJCCF2JThmrP921t2p
+   b/E5pV6fLOYMM13881ZQcQcltMNVDZn4lzgzKRFFxCQFaTl6fJMHZdYVmICQTHtI
+   sNaym0zduc8/cv34mgJ+7NseXmsEPCdjrZ59wgfPsLhZLXqtfxi5hGWw4NMa3Sb2
+   UI8dzqFzRp/hSDEM0mEqiA==
+   ```
+
+7. Finally, you will get __Activation Code__ which looks like a Base64 string. Just copy it and paste it in Navicat `Manual Activation` window, then click `Activate`. If nothing wrong, activation should be done successfully.
+

doc/how-to-use.windows.zh-CN.md

@@ -0,0 +1,254 @@
+# Navicat Keygen - 如何使用这个注册机？ (Windows)
+
+1. [从这里](https://github.com/DoubleLabyrinth/navicat-keygen/releases)下载最新的release。
+
+2. 使用`navicat-patcher.exe`替换掉`navicat.exe`和`libcc.dll`里的Navicat激活公钥。 
+
+   ```
+   navicat-patcher.exe [-dry-run] <Navicat Installation Path> [RSA-2048 PEM File Path]
+   ```
+
+   * `[-dry-run]`: 运行patcher但不对Navicat程序做任何修改。
+
+     __这个参数是可选的。__
+
+   * `<Navicat Installation Path>`: Navicat的完整安装路径。 
+     
+     __这个参数必须指定。__
+
+   * `[RSA-2048 PEM File Path]`: RSA-2048私钥文件的完整路径或相对路径。
+     
+     __这个参数是可选的。__ 如果未指定，`navicat-patcher.exe`将会在当前目录生成一个新的RSA-2048私钥文件。
+
+   __例如：(在cmd.exe中)__ 
+
+   ```
+   navicat-patcher.exe "C:\Program Files\PremiumSoft\Navicat Premium 12"
+   ```
+   
+   __Navicat Premium 12.1.22 简体中文版已通过测试__。下面将是一份样例输出：
+
+   ```
+   ***************************************************
+   *       Navicat Patcher by @DoubleLabyrinth       *
+   *                  Version: 4.0                   *
+   ***************************************************
+
+   Press Enter to continue or Ctrl + C to abort.
+
+   [+] Try to open Navicat.exe ... Ok!
+   [+] Try to open libcc.dll ... Ok!
+
+   [+] PatchSolution0 ...... Ready to apply
+       [*] Patch offset = +0x029bccd8
+   [+] PatchSolution1 ...... Ready to apply
+       [*] [0] Patch offset = +0x02206c00
+       [*] [1] Patch offset = +0x0074c489
+       [*] [2] Patch offset = +0x02206910
+       [*] [3] Patch offset = +0x0074c46f
+       [*] [4] Patch offset = +0x02206904
+   [-] PatchSolution2 ...... Omitted
+   [+] PatchSolution3 ...... Ready to apply
+       [*] [  0] Instruction RVA = 0x016539c8, Patch Offset = +0x023e64d4
+       [*] [  1] Instruction RVA = 0x01653a1f, Patch Offset = +0x01652e23
+       [*] [  2] Instruction RVA = 0x01653a25, Patch Offset = +0x01652e28
+       [*] [  3] Instruction RVA = 0x01653a8c, Patch Offset = +0x01652e8e
+       ...
+       ...
+       ...
+       [*] [108] Instruction RVA = 0x016604e1, Patch Offset = +0x023e66d8
+       [*] [109] Instruction RVA = 0x01660518, Patch Offset = +0x0165f91c
+       [*] [110] Instruction RVA = 0x0166051e, Patch Offset = +0x0165f921
+
+   [*] PatchSolution0 is suppressed in order to keep digital signature valid.
+
+   [*] Generating new RSA private key, it may take a long time...
+   [*] Your RSA public key:
+   -----BEGIN PUBLIC KEY-----
+   MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1hV66HgU4LrKXWW6O7bK
+   AN6ZTr5W+Mq8ClTQ+Pc+BdhLu6rww55kVq7OXKGpvx0G4eTafYMGrrBETgDSTaMq
+   Bx+8bZbGBWh2LtNfqU+xUrpHHBSz0ByBc3iTEzzthJl+Fzf8suDX2lWYIc/Ym/eW
+   YtxdJ7xOzLb68z4N0zVmA0jFX2FOm75DRYgKqy4SGixapfucL9dVaWVLTUdbrVdj
+   4LX78t4t5ykbYoThrat4yuLvj/BxLaQ6ivKD+ScfHdtCoY+NA5jmBoUfBq3Q1SXB
+   iNaoXctbi0/H3MiPu0cRojryAocooF89yFm5/mNnzWGAYPr6DvBI8CDTZmjaQ4oC
+   aQIDAQAB
+   -----END PUBLIC KEY-----
+
+   *******************************************************
+   *                   PatchSolution1                    *
+   *******************************************************
+   [*] Previous:
+   +0x0000000002206c00  44 37 35 31 32 35 42 37 30 37 36 37 42 39 34 31  D75125B70767B941
+   +0x0000000002206c10  34 35 42 34 37 43 31 43 42 33 43 30 37 35 35 45  45B47C1CB3C0755E
+   +0x0000000002206c20  37 43 43 42 38 38 32 35 43 35 44 43 45 30 43 35  7CCB8825C5DCE0C5
+   ...
+   ...
+   [*] After:
+   +0x0000000002206c00  33 43 32 39 30 39 35 38 33 34 38 41 42 43 35 39  3C290958348ABC59
+   +0x0000000002206c10  36 44 39 30 43 45 45 38 31 36 42 36 39 38 34 44  6D90CEE816B6984D
+   +0x0000000002206c20  35 32 35 34 37 45 30 32 34 31 42 36 42 43 31 41  52547E0241B6BC1A
+   ...
+   ...
+
+   [*] Previous:
+   +0x000000000074c480                             fe ea bc 01                    ....
+   [*] After:
+   +0x000000000074c480                             08 00 00 00                    ....
+
+   [*] Previous:
+   +0x0000000002206910  45 31 43 45 44 30 39 42 39 43 32 31 38 36 42 46  E1CED09B9C2186BF
+   +0x0000000002206920  37 31 41 37 30 43 30 46 45 32 46 31 45 30 41 45  71A70C0FE2F1E0AE
+   +0x0000000002206930  46 33 42 44 36 42 37 35 32 37 37 41 41 42 32 30  F3BD6B75277AAB20
+   ...
+   ...
+   [*] After:
+   +0x0000000002206910  41 33 39 42 41 36 43 34 31 36 33 32 35 30 46 45  A39BA6C4163250FE
+   +0x0000000002206920  42 32 41 39 31 41 34 32 46 44 42 46 30 41 32 31  B2A91A42FDBF0A21
+   +0x0000000002206930  33 34 46 34 36 44 43 45 34 30 42 46 41 42 33 35  34F46DCE40BFAB35
+   ...
+   ...
+
+   [*] Previous:
+   +0x000000000074c460                                               59                 Y
+   +0x000000000074c470  08 01 00                                         ...
+   [*] After:
+   +0x000000000074c460                                               06                 .
+   +0x000000000074c470  00 00 00                                         ...
+
+   [*] Previous:
+   +0x0000000002206900              39 32 39 33 33                           92933
+   [*] After:
+   +0x0000000002206900              42 34 34 33 38                           B4438
+
+   *******************************************************
+   *                   PatchSolution3                    *
+   *******************************************************
+   [*] +023e64d4: 4d 49 49 ---> 4d 49 49
+   [*] +01652e23: 42 49 ---> 42 49
+   [*] +01652e28: 6a ---> 6a
+   ...
+   ...
+   ...
+   [*] +023e66d8: 77 49 44 41 ---> 51 49 44 41
+   [*] +0165f91c: 51 41 ---> 51 41
+   [*] +0165f921: 42 ---> 42
+
+   [*] New RSA-2048 private key has been saved to
+   C:\Users\DoubleSine\github.com\navicat-keygen\bin\x64-Release\RegPrivateKey.pem
+
+   *******************************************************
+   *           PATCH HAS BEEN DONE SUCCESSFULLY!         *
+   *                  HAVE FUN AND ENJOY~                *
+   *******************************************************
+   ```
+
+3. 接下来使用`navicat-keygen.exe`来生成序列号和激活码
+
+   ```
+   navicat-keygen.exe <-bin|-text> [-adv] <RSA-2048 PrivateKey(PEM file)>
+   ```
+
+   * `<-bin|-text>`: 必须是`-bin`或`-text`。
+
+     如果指定了`-bin`，`navicat-keygen.exe`最终将生成`license_file`文件。这个选项是给Navicat旧激活方式使用的。
+
+     如果指定了`-text`，`navicat-keygen.exe`最终将生成Base64样式的激活码。这个选项是给Navicat新激活方式使用的。
+
+     __这个参数必须指定。__
+
+   * `[-adv]`: 开启高级模式。
+
+     __这个参数是可选的。__ 如果指定了这个参数，`navicat-keygen.exe`将会要求你手工填写产品ID号、语言标识号。这个选项一般是给以后用的。
+
+   * `<RSA-2048 PrivateKey(PEM file)>`: RSA-2048私钥文件的完整路径或相对路径。
+     
+     __这个参数必须指定。__
+
+   __例如：(在cmd.exe中)__ 
+
+   ```console
+   navicat-keygen.exe -text .\RegPrivateKey.pem
+   ```
+
+   你会被要求选择Navicat产品类别、语言以及输入主版本号。之后会随机生成一个序列号。
+
+   ```
+   Select Navicat product:
+   0. DataModeler
+   1. Premium
+   2. MySQL
+   3. PostgreSQL
+   4. Oracle
+   5. SQLServer
+   6. SQLite
+   7. MariaDB
+   8. MongoDB
+   9. ReportViewer
+
+   (Input index)> 1
+
+   Select product language:
+   0. English
+   1. Simplified Chinese
+   2. Traditional Chinese
+   3. Japanese
+   4. Polish
+   5. Spanish
+   6. French
+   7. German
+   8. Korean
+   9. Russian
+   10. Portuguese
+
+   (Input index)> 1
+
+   (Input major version number, range: 0 ~ 15, default: 12)> 12
+
+   Serial number:
+   NAVO-2ORP-IN5A-GQEE
+
+   Your name: 
+   ```
+
+   你可以使用这个序列号暂时激活Navicat。
+
+   接下来你会被要求输入`用户名`和`组织名`；请随便填写，但不要太长。
+
+   ```
+   Your name: DoubleLabyrinth
+   Your organization: DoubleLabyrinth
+   Input request code (in Base64), input empty line to end:
+   ```
+ 
+   之后你会被要求填入请求码。注意 __不要关闭命令行__.
+
+4. __断开网络__ 并打开Navicat。找到`注册`窗口，并填入keygen给你的序列号。然后点击`激活`按钮。
+
+5. 一般来说在线激活肯定会失败，这时候Navicat会询问你是否`手动激活`，直接选吧。
+
+6. 在`手动激活`窗口你会得到一个请求码，复制它并把它粘贴到keygen里。最后别忘了连按至少两下回车结束输入。
+
+   ```
+   Your name: DoubleLabyrinth
+   Your organization: DoubleLabyrinth
+
+   Input request code (in Base64), input empty line to end:
+   t2U+0yfE2FfnbjyhCXa0lglZOHu9Ntc3qyGiPbR6xb1QoU63/9BVfdaCq0blwVycXPyT/Vqw5joIKdM5oCRR/afCPM7iRcyhQMAnvqwc+AOKCqayVV+SqKLvtR/AbREI12w++PQ6Ewfs4A8PgB8OJ9G0jKt6Q/iJRblqi2WWw9mwy+YHcYYh3UAfygTnyj/xl+MzRymbY0lkus+6LPtpDecVsFFhM7F32Ee1QPwISko7bAkHOtkt+joPfYDdn9PDGZ4HEmeLvH6UqZCXkzgaAfynB7cQZFEkId8FsW2NGkbpM7wB2Hi3fNFgOIjutTprixTdbpFKn4w6gGc28ve23A==
+
+   Request Info:
+   {"K":"NAVO2ORPIN5AGQEE", "DI":"R91j6WyMhxHznAKSxxxx", "P":"WIN"}
+
+   Response Info:
+   {"K":"NAVO2ORPIN5AGQEE","DI":"R91j6WyMhxHznAKSxxxx","N":"DoubleLabyrinth","O":"DoubleLabyrinth","T":1547826060}
+
+   License:
+   lRF18o+ZhBphyN0U5kFLHtAAGGXuvhqOcxNuvAk4dJcGeR0ISuw74mQvAfdNjv0T
+   I5NZFzqIJvrzM0XeR88q+3kmZkECuxwwWHP3zzDPhPiylcTV4DoGZ1tfoViUSYQc
+   LgXG0Fl7koZeP61YOKQ8GfX+Xk2ZTM64bYaF7NlhonM+GQUJCCF2JThmrP921t2p
+   b/E5pV6fLOYMM13881ZQcQcltMNVDZn4lzgzKRFFxCQFaTl6fJMHZdYVmICQTHtI
+   sNaym0zduc8/cv34mgJ+7NseXmsEPCdjrZ59wgfPsLhZLXqtfxi5hGWw4NMa3Sb2
+   UI8dzqFzRp/hSDEM0mEqiA==
+   ```
+
+  4. 如果不出意外，你会得到一个看似用Base64编码的激活码。直接复制它，并把它粘贴到Navicat的`手动激活`窗口，最后点`激活`按钮。如果没什么意外的话应该能成功激活。
+

navicat-keygen.sln

@@ -0,0 +1,48 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.32112.339
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "navicat-keygen", "navicat-keygen\navicat-keygen.vcxproj", "{6D262AF4-5DAC-4F0C-B3D6-23C9CBEA9756}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "navicat-patcher", "navicat-patcher\navicat-patcher.vcxproj", "{1B6920EB-E6ED-465F-9600-B5F816752375}"
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "common", "common\common.vcxitems", "{6D81A756-475A-4093-919E-3E9217F662CA}"
+EndProject
+Global
+	GlobalSection(SharedMSBuildProjectFiles) = preSolution
+		common\common.vcxitems*{1b6920eb-e6ed-465f-9600-b5f816752375}*SharedItemsImports = 4
+		common\common.vcxitems*{6d262af4-5dac-4f0c-b3d6-23c9cbea9756}*SharedItemsImports = 4
+		common\common.vcxitems*{6d81a756-475a-4093-919e-3e9217f662ca}*SharedItemsImports = 9
+	EndGlobalSection
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|x64 = Debug|x64
+		Debug|x86 = Debug|x86
+		Release|x64 = Release|x64
+		Release|x86 = Release|x86
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{6D262AF4-5DAC-4F0C-B3D6-23C9CBEA9756}.Debug|x64.ActiveCfg = Debug|x64
+		{6D262AF4-5DAC-4F0C-B3D6-23C9CBEA9756}.Debug|x64.Build.0 = Debug|x64
+		{6D262AF4-5DAC-4F0C-B3D6-23C9CBEA9756}.Debug|x86.ActiveCfg = Debug|Win32
+		{6D262AF4-5DAC-4F0C-B3D6-23C9CBEA9756}.Debug|x86.Build.0 = Debug|Win32
+		{6D262AF4-5DAC-4F0C-B3D6-23C9CBEA9756}.Release|x64.ActiveCfg = Release|x64
+		{6D262AF4-5DAC-4F0C-B3D6-23C9CBEA9756}.Release|x64.Build.0 = Release|x64
+		{6D262AF4-5DAC-4F0C-B3D6-23C9CBEA9756}.Release|x86.ActiveCfg = Release|Win32
+		{6D262AF4-5DAC-4F0C-B3D6-23C9CBEA9756}.Release|x86.Build.0 = Release|Win32
+		{1B6920EB-E6ED-465F-9600-B5F816752375}.Debug|x64.ActiveCfg = Debug|x64
+		{1B6920EB-E6ED-465F-9600-B5F816752375}.Debug|x64.Build.0 = Debug|x64
+		{1B6920EB-E6ED-465F-9600-B5F816752375}.Debug|x86.ActiveCfg = Debug|Win32
+		{1B6920EB-E6ED-465F-9600-B5F816752375}.Debug|x86.Build.0 = Debug|Win32
+		{1B6920EB-E6ED-465F-9600-B5F816752375}.Release|x64.ActiveCfg = Release|x64
+		{1B6920EB-E6ED-465F-9600-B5F816752375}.Release|x64.Build.0 = Release|x64
+		{1B6920EB-E6ED-465F-9600-B5F816752375}.Release|x86.ActiveCfg = Release|Win32
+		{1B6920EB-E6ED-465F-9600-B5F816752375}.Release|x86.Build.0 = Release|Win32
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {9382E280-F6E3-48E2-B3EF-1DB5BFF83DAE}
+	EndGlobalSection
+EndGlobal

navicat-keygen/CollectInformation.cpp

@@ -0,0 +1,131 @@
+#include "navicat_serial_generator.hpp"
+#include <iostream>
+#include "exceptions/operation_canceled_exception.hpp"
+
+#define NKG_CURRENT_SOURCE_FILE() u8".\\navicat-keygen\\CollectInformation.cpp"
+#define NKG_CURRENT_SOURCE_LINE() __LINE__
+
+namespace nkg {
+
+    [[nodiscard]]
+    static int read_int(int min_val, int max_val, std::wstring_view prompt, std::wstring_view error_msg) {
+        int val;
+
+        for (std::wstring s;;) {
+            std::wcout << prompt;
+            if (!std::getline(std::wcin, s)) {
+                throw exceptions::operation_canceled_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Operation is canceled by user.");
+            }
+
+            if (s.empty())
+                continue;
+
+            try {
+                val = std::stoi(s, nullptr, 0);
+                if (min_val <= val && val <= max_val) {
+                    return val;
+                } else {
+                    throw std::invalid_argument(u8"");
+                }
+            } catch (std::invalid_argument&) {
+                std::wcout << error_msg << std::endl;
+            }
+        }
+    }
+
+    [[nodiscard]]
+    static int read_int(int min_val, int max_val, int default_val, std::wstring_view prompt, std::wstring_view error_msg) {
+        int val;
+
+        for (std::wstring s;;) {
+            std::wcout << prompt;
+            if (!std::getline(std::wcin, s)) {
+                throw exceptions::operation_canceled_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Operation is canceled by user.");
+            }
+
+            if (s.empty()) {
+                return default_val;
+            }
+
+            try {
+                val = std::stoi(s, nullptr, 0);
+                if (min_val <= val && val <= max_val) {
+                    return val;
+                } else {
+                    throw std::invalid_argument(u8"");
+                }
+            } catch (std::invalid_argument&) {
+                std::wcout << error_msg << std::endl;
+            }
+        }
+    }
+
+    [[nodiscard]]
+    navicat_serial_generator CollectInformationNormal() {
+        navicat_serial_generator sn_generator;
+
+        std::wcout << L"[*] Select Navicat product:"    << std::endl;
+        std::wcout << L" 0. DataModeler"                << std::endl;
+        std::wcout << L" 1. Premium"                    << std::endl;
+        std::wcout << L" 2. MySQL"                      << std::endl;
+        std::wcout << L" 3. PostgreSQL"                 << std::endl;
+        std::wcout << L" 4. Oracle"                     << std::endl;
+        std::wcout << L" 5. SQLServer"                  << std::endl;
+        std::wcout << L" 6. SQLite"                     << std::endl;
+        std::wcout << L" 7. MariaDB"                    << std::endl;
+        std::wcout << L" 8. MongoDB"                    << std::endl;
+        std::wcout << L" 9. ReportViewer"               << std::endl;
+        std::wcout << std::endl;
+        sn_generator.set_software_type(static_cast<navicat_software_type>(read_int(0, 9, L"(Input index)> ", L"Invalid index.")));
+        std::wcout << std::endl;
+
+        std::wcout << L"[*] Select product language:"   << std::endl;
+        std::wcout << L" 0. English"                    << std::endl;
+        std::wcout << L" 1. Simplified Chinese"         << std::endl;
+        std::wcout << L" 2. Traditional Chinese"        << std::endl;
+        std::wcout << L" 3. Japanese"                   << std::endl;
+        std::wcout << L" 4. Polish"                     << std::endl;
+        std::wcout << L" 5. Spanish"                    << std::endl;
+        std::wcout << L" 6. French"                     << std::endl;
+        std::wcout << L" 7. German"                     << std::endl;
+        std::wcout << L" 8. Korean"                     << std::endl;
+        std::wcout << L" 9. Russian"                    << std::endl;
+        std::wcout << L" 10. Portuguese"                << std::endl;
+        std::wcout << std::endl;
+        sn_generator.set_software_language(static_cast<navicat_software_language>(read_int(0, 10, L"(Input index)> ", L"Invalid index.")));
+        std::wcout << std::endl;
+
+        std::wcout << L"[*] Input major version number:" << std::endl;
+        sn_generator.set_software_version(read_int(11, 16, 16, L"(range: 11 ~ 16, default: 16)> ", L"Invalid number."));
+        std::wcout << std::endl;
+
+        return sn_generator;
+    }
+
+    [[nodiscard]]
+    navicat_serial_generator CollectInformationAdvanced() {
+        navicat_serial_generator sn_generator;
+
+        std::wcout << L"[*] Navicat Product Signature:" << std::endl;
+        sn_generator.set_software_type(static_cast<std::uint8_t>(read_int(0x00, 0xff, L"(range: 0x00 ~ 0xFF)> ", L"Invalid number.")));
+        std::wcout << std::endl;
+
+        std::wcout << L"[*] Navicat Language Signature 0:" << std::endl;
+        auto s1 = static_cast<std::uint8_t>(read_int(0x00, 0xff, L"(range: 0x00 ~ 0xFF)> ", L"Invalid number."));
+        std::wcout << std::endl;
+
+        std::wcout << L"[*] Navicat Language Signature 1:" << std::endl;
+        auto s2 = static_cast<std::uint8_t>(read_int(0x00, 0xff, L"(range: 0x00 ~ 0xFF)> ", L"Invalid number."));
+        sn_generator.set_software_language(s1, s2);
+        std::wcout << std::endl;
+
+        std::wcout << L"[*] Input major version number:" << std::endl;
+        sn_generator.set_software_version(read_int(11, 16, 16, L"(range: 11 ~ 16, default: 16)> ", L"Invalid number."));
+        std::wcout << std::endl;
+
+        return sn_generator;
+    }
+}
+
+#undef NKG_CURRENT_SOURCE_FILE
+#undef NKG_CURRENT_SOURCE_LINE

navicat-keygen/GenerateLicense.cpp

@@ -0,0 +1,236 @@
+#include "exception.hpp"
+#include "exceptions/operation_canceled_exception.hpp"
+#include "exceptions/win32_exception.hpp"
+
+#include "resource_wrapper.hpp"
+#include "resource_traits/win32/file_handle.hpp"
+
+#include "cp_converter.hpp"
+#include "base64_rfc4648.hpp"
+#include "navicat_serial_generator.hpp"
+#include "rsa_cipher.hpp"
+
+#include <iostream>
+#include <ctime>
+
+#include <rapidjson/document.h>
+#include <rapidjson/writer.h>
+#include <rapidjson/stringbuffer.h>
+
+#define NKG_CURRENT_SOURCE_FILE() u8".\\navicat-keygen\\GenerateLicense.cpp"
+#define NKG_CURRENT_SOURCE_LINE() __LINE__
+
+namespace nkg {
+
+    void GenerateLicenseText(const rsa_cipher& cipher, const navicat_serial_generator& sn_generator) {
+        std::wstring username;
+        std::wstring organization;
+        std::string u8_username;
+        std::string u8_organization;
+
+        std::wstring b64_request_code;
+        std::vector<std::uint8_t> request_code;
+        std::string u8_request_info;
+        std::string u8_response_info;
+        std::vector<std::uint8_t> response_code;
+        std::wstring b64_response_code;
+
+        std::wcout << L"[*] Your name: ";
+        if (!std::getline(std::wcin, username)) {
+            throw exceptions::operation_canceled_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Operation is canceled by user.");
+        } else {
+            u8_username = cp_converter<-1, CP_UTF8>::convert(username);
+        }
+
+        std::wcout << L"[*] Your organization: ";
+        if (!std::getline(std::wcin, organization)) {
+            throw exceptions::operation_canceled_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Operation is canceled by user.");
+        } else {
+            u8_organization = cp_converter<-1, CP_UTF8>::convert(organization);
+        }
+
+        std::wcout << L"[*] Input request code in Base64: (Input empty line to end)" << std::endl;
+        while (true) {
+            std::wstring s;
+            if (!std::getline(std::wcin, s)) {
+                throw exceptions::operation_canceled_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Operation is canceled by user.");
+            }
+
+            if (s.empty()) {
+                break;
+            }
+
+            b64_request_code.append(s);
+        }
+
+        if (b64_request_code.empty()) {
+            throw exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Nothing inputs, abort!");
+        }
+
+        request_code = base64_rfc4648::decode(cp_converter<-1, CP_UTF8>::convert(b64_request_code));
+
+        u8_request_info.resize((cipher.bits() + 7) / 8);
+        u8_request_info.resize(cipher.private_decrypt(request_code.data(), request_code.size(), u8_request_info.data(), RSA_PKCS1_PADDING));
+        while (u8_request_info.back() == '\x00') {
+            u8_request_info.pop_back();
+        }
+
+        std::wcout << L"[*] Request Info:" << std::endl;
+        std::wcout << cp_converter<CP_UTF8, -1>::convert(u8_request_info) << std::endl;
+        std::wcout << std::endl;
+
+        rapidjson::Document json;
+        rapidjson::Value N_Key;
+        rapidjson::Value N_Value;
+        rapidjson::Value O_Key;
+        rapidjson::Value O_Value;
+        rapidjson::Value T_Key;
+        rapidjson::Value T_Value;
+        rapidjson::StringBuffer buffer;
+        rapidjson::Writer<rapidjson::StringBuffer> writer(buffer);
+
+        //
+        // begin to parse
+        //
+        json.Parse(u8_request_info.c_str());
+
+        //
+        // remove "Platform" info
+        //
+        json.RemoveMember(u8"P");
+
+        //
+        // set "Name" info
+        //
+        N_Key.SetString(u8"N", 1);
+        N_Value.SetString(u8_username.c_str(), static_cast<rapidjson::SizeType>(u8_username.length()));
+
+        //
+        // set "Organization" info
+        //
+        O_Key.SetString(u8"O", 1);
+        O_Value.SetString(u8_organization.c_str(), static_cast<rapidjson::SizeType>(u8_organization.length()));
+
+        //
+        // set "Time" info
+        //
+        T_Key.SetString(u8"T", 1);
+        T_Value.SetUint(static_cast<unsigned int>(std::time(nullptr)));
+
+        //
+        // add "Name", "Organization" and "Time"
+        //
+        json.AddMember(N_Key, N_Value, json.GetAllocator());
+        json.AddMember(O_Key, O_Value, json.GetAllocator());
+        json.AddMember(T_Key, T_Value, json.GetAllocator());
+
+        //
+        // flush
+        //
+        json.Accept(writer);
+
+        if (buffer.GetSize() > 240) {
+            throw exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Response Info is too long.");
+        }
+
+        u8_response_info.assign(buffer.GetString(), buffer.GetSize());
+
+        std::wcout << L"[*] Response Info:" << std::endl;
+        std::wcout << cp_converter<CP_UTF8, -1>::convert(u8_response_info) << std::endl;
+        std::wcout << std::endl;
+
+        response_code.resize((cipher.bits() + 7) / 8);
+        response_code.resize(cipher.private_encrypt(u8_response_info.data(), u8_response_info.size(), response_code.data(), RSA_PKCS1_PADDING));
+        b64_response_code = cp_converter<CP_UTF8, -1>::convert(base64_rfc4648::encode(response_code));
+
+        std::wcout << L"[*] Activation Code:" << std::endl;
+        std::wcout << b64_response_code << std::endl;
+        std::wcout << std::endl;
+    }
+
+    void GenerateLicenseBinary(const rsa_cipher& cipher, const navicat_serial_generator& sn_generator) {
+        std::string utf8SerialNumber = sn_generator.serial_number();
+
+        std::wstring username;
+        std::wstring organization;
+        std::string u8_username;
+        std::string u8_organization;
+
+        std::string u8_response_info;
+        std::vector<std::uint8_t> response_code;
+
+        std::wcout << L"[*] Your name: ";
+        if (!std::getline(std::wcin, username)) {
+            throw exceptions::operation_canceled_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Operation is canceled by user.");
+        } else {
+            u8_username = cp_converter<-1, CP_UTF8>::convert(username);
+        }
+
+        std::wcout << L"[*] Your organization: ";
+        if (!std::getline(std::wcin, organization)) {
+            throw exceptions::operation_canceled_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Operation is canceled by user.");
+        } else {
+            u8_organization = cp_converter<-1, CP_UTF8>::convert(organization);
+        }
+
+        rapidjson::Document json;
+        rapidjson::Value N_Key;
+        rapidjson::Value N_Value;
+        rapidjson::Value O_Key;
+        rapidjson::Value O_Value;
+        rapidjson::Value T_Key;
+        rapidjson::Value T_Value;
+        rapidjson::Value K_Key;
+        rapidjson::Value K_Value;
+        rapidjson::StringBuffer buffer;
+        rapidjson::Writer<rapidjson::StringBuffer> writer(buffer);
+
+        json.Parse("{}");
+        K_Key.SetString("K", 1);
+        K_Value.SetString(utf8SerialNumber.c_str(), static_cast<rapidjson::SizeType>(utf8SerialNumber.length()));
+        N_Key.SetString("N", 1);
+        N_Value.SetString(u8_username.c_str(), static_cast<rapidjson::SizeType>(u8_username.length()));
+        O_Key.SetString("O", 1);
+        O_Value.SetString(u8_organization.c_str(), static_cast<rapidjson::SizeType>(u8_organization.length()));
+        T_Key.SetString("T", 1);
+        T_Value.SetUint(static_cast<unsigned int>(std::time(nullptr)));
+
+        json.AddMember(K_Key, K_Value, json.GetAllocator());
+        json.AddMember(N_Key, N_Value, json.GetAllocator());
+        json.AddMember(O_Key, O_Value, json.GetAllocator());
+        json.AddMember(T_Key, T_Value, json.GetAllocator());
+
+        //
+        // flush
+        //
+        json.Accept(writer);
+
+        if (buffer.GetSize() > 240) {
+            throw exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Response Info is too long.");
+        }
+
+        u8_response_info.assign(buffer.GetString(), buffer.GetSize());
+        
+        std::wcout << L"[*] Response Info:" << std::endl;
+        std::wcout << cp_converter<CP_UTF8, -1>::convert(u8_response_info) << std::endl;
+        std::wcout << std::endl;
+
+        response_code.resize((cipher.bits() + 7) / 8);
+        response_code.resize(cipher.private_encrypt(u8_response_info.data(), u8_response_info.size(), response_code.data(), RSA_PKCS1_PADDING));
+
+        resource_wrapper license_file{ resource_traits::win32::file_handle{}, CreateFileW(L"license_file", GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL) };
+        if (license_file.is_valid() == false) {
+            throw exceptions::win32_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), GetLastError(), u8"CreateFileW failed.");
+        }
+
+        if (DWORD _;  WriteFile(license_file.get(), response_code.data(), static_cast<DWORD>(response_code.size()), &_, NULL) == FALSE) {
+            throw exceptions::win32_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), GetLastError(), u8"WriteFile failed.");
+        }
+
+        std::wcout << L"[+] license_file has been generated." << std::endl;
+    }
+
+}
+
+#undef NKG_CURRENT_SOURCE_FILE
+#undef NKG_CURRENT_SOURCE_LINE

navicat-keygen/base32_rfc4648.cpp

@@ -0,0 +1,120 @@
+#include "base32_rfc4648.hpp"
+
+#define NKG_CURRENT_SOURCE_FILE() u8".\\navicat-keygen\\base32_rfc4648.cpp"
+#define NKG_CURRENT_SOURCE_LINE() __LINE__
+
+namespace nkg {
+
+    char base32_rfc4648::symbol(alphabet_index_t idx) {
+        return alphabet[idx];
+    }
+
+    base32_rfc4648::alphabet_index_t base32_rfc4648::reverse_symbol(char c) {
+        if ('A' <= c && c <= 'Z') {
+            return c - 'A';
+        } else if ('2' <= c && c <= '7') {
+            return c - '2' + 26;
+        } else {
+            throw decoding_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Non-base32 digit is found");
+        }
+    }
+
+    std::string base32_rfc4648::encode(const std::vector<uint8_t>& data) {
+        return encode(data.data(), data.size());
+    }
+
+    std::string base32_rfc4648::encode(const void* data_ptr, size_t data_size) {
+        std::string retval;
+
+        if (data_size) {
+            retval.reserve((data_size * 8 + 4) / 5);
+
+            auto p = reinterpret_cast<const uint8_t*>(data_ptr);
+            alphabet_index_t left_bits = 0;
+            alphabet_index_t bit_buffer = 0;
+            for (size_t i = 0; i < data_size; ++i) {
+                bit_buffer = (bit_buffer << 8) | p[i];
+                left_bits += 8;
+
+                while (left_bits >= 5) {
+                    alphabet_index_t idx = (bit_buffer >> (left_bits - 5)) & 0x1f;
+                    retval.push_back(symbol(idx));
+                    left_bits -= 5;
+                }
+            }
+
+            if (left_bits > 0) {
+                alphabet_index_t idx = (bit_buffer << (5 - left_bits)) & 0x1f;
+                retval.push_back(symbol(idx));
+            }
+
+            switch (data_size % 5) {
+                case 0:
+                    break;
+                case 1:
+                    retval.append(6, padding_character);
+                    break;
+                case 2:
+                    retval.append(4, padding_character);
+                    break;
+                case 3:
+                    retval.append(3, padding_character);
+                    break;
+                case 4:
+                    retval.append(1, padding_character);
+                    break;
+                default:
+                    __assume(false);
+            }
+        }
+            
+        return retval;
+    }
+
+    std::vector<uint8_t> base32_rfc4648::decode(std::string_view b32_string) {
+        if (b32_string.length() % 8 == 0) {
+            std::vector<uint8_t> retval;
+
+            size_t count_of_padding = std::distance(b32_string.crbegin(), std::find_if_not(b32_string.crbegin(), b32_string.crend(), [](char c) -> bool { return c == padding_character; }));
+            switch (count_of_padding) {
+                case 1:
+                    retval.reserve(b32_string.length() / 8 * 5 - (5 - 4));
+                    break;
+                case 3:
+                    retval.reserve(b32_string.length() / 8 * 5 - (5 - 3));
+                    break;
+                case 4:
+                    retval.reserve(b32_string.length() / 8 * 5 - (5 - 2));
+                    break;
+                case 6:
+                    retval.reserve(b32_string.length() / 8 * 5 - (5 - 1));
+                    break;
+                default:
+                    throw decoding_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Incorrect padding");
+            }
+
+            size_t count_of_encoded = b32_string.length() - count_of_padding;
+
+            alphabet_index_t left_bits = 0;
+            alphabet_index_t bit_buffer = 0;
+            for (size_t i = 0; i < count_of_encoded; ++i) {
+                bit_buffer = (bit_buffer << 5) | reverse_symbol(b32_string[i]);
+                left_bits += 5;
+
+                while (left_bits >= 8) {
+                    auto val = static_cast<uint8_t>((bit_buffer >> (left_bits - 8)) & 0xff);
+                    retval.push_back(val);
+                    left_bits -= 8;
+                }
+            }
+
+            return retval;
+        } else {
+            throw decoding_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Incorrect padding");
+        }
+    }
+
+}
+
+#undef NKG_CURRENT_SOURCE_LINE
+#undef NKG_CURRENT_SOURCE_FILE

navicat-keygen/base32_rfc4648.hpp

@@ -0,0 +1,39 @@
+#pragma once
+#include <limits>
+#include <string>
+#include <vector>
+#include <algorithm>
+#include "exception.hpp"
+
+#define NKG_CURRENT_SOURCE_FILE() u8".\\navicat-keygen\\base32_rfc4648.hpp"
+#define NKG_CURRENT_SOURCE_LINE() __LINE__
+
+namespace nkg {
+
+    struct base32_rfc4648 {
+        using alphabet_index_t = size_t;
+
+        static constexpr const char alphabet[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZ234567";
+        static constexpr const char padding_character = '=';
+
+        class decoding_error : public ::nkg::exception {
+        public:
+            decoding_error(std::string_view file, int line, std::string_view message) noexcept :
+                ::nkg::exception(file, line, message) {}
+        };
+
+        static char symbol(alphabet_index_t idx);
+
+        static alphabet_index_t reverse_symbol(char c);
+
+        static std::string encode(const std::vector<uint8_t>& data);
+
+        static std::string encode(const void* data_ptr, size_t data_size);
+
+        static std::vector<uint8_t> decode(std::string_view b32_string);
+    };
+
+}
+
+#undef NKG_CURRENT_SOURCE_LINE
+#undef NKG_CURRENT_SOURCE_FILE

navicat-keygen/base64_rfc4648.cpp

@@ -0,0 +1,103 @@
+#include "base64_rfc4648.hpp"
+
+#include <openssl/bio.h>
+#include <openssl/evp.h>
+
+#include "resource_wrapper.hpp"
+#include "resource_traits/openssl/bio.hpp"
+#include "resource_traits/openssl/bio_chain.hpp"
+
+#pragma comment(lib, "libcrypto")
+#pragma comment(lib, "crypt32") // required by libcrypto.lib
+#pragma comment(lib, "ws2_32")  // required by libcrypto.lib
+
+#define NKG_CURRENT_SOURCE_FILE() u8".\\navicat-keygen\\base64_rfc4648.cpp"
+#define NKG_CURRENT_SOURCE_LINE() __LINE__
+
+namespace nkg {
+
+    std::string base64_rfc4648::encode(const std::vector<std::uint8_t>& data) {
+        resource_wrapper bio_b64{ resource_traits::openssl::bio_chain{}, BIO_new(BIO_f_base64()) };
+        if (bio_b64.is_valid() == false) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"BIO_new failed.");
+        }
+
+        BIO_set_flags(bio_b64.get(), BIO_FLAGS_BASE64_NO_NL);
+
+        resource_wrapper bio_memory{ resource_traits::openssl::bio{}, BIO_new(BIO_s_mem()) };
+        if (bio_memory.is_valid() == false) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"BIO_new failed.");
+        }
+
+        BIO_push(bio_b64.get(), bio_memory.get());
+
+        for (size_t written_size = 0, left_size = data.size(); left_size != 0;) {
+            int size_to_write = static_cast<int>(std::min(left_size, static_cast<size_t>(INT_MAX)));
+
+            int r = BIO_write(bio_b64.get(), data.data() + written_size, size_to_write);
+            if (r > 0) {
+                written_size += r;
+                left_size -= r;
+            } else {
+                throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"BIO_write failed.");
+            }
+        }
+
+        BIO_flush(bio_b64.get());
+
+        const char* pch = nullptr;
+        long lch = BIO_get_mem_data(bio_memory.get(), &pch);
+
+        bio_memory.discard();   // the bio_chain `bio_b64` will free it
+
+        return std::string(pch, lch);
+    }
+
+    std::vector<uint8_t> base64_rfc4648::decode(std::string_view b64_string) {
+        resource_wrapper bio_b64{ resource_traits::openssl::bio_chain{}, BIO_new(BIO_f_base64()) };
+        if (bio_b64.is_valid() == false) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"BIO_new failed.");
+        }
+
+        BIO_set_flags(bio_b64.get(), BIO_FLAGS_BASE64_NO_NL);
+
+        resource_wrapper bio_memory{ resource_traits::openssl::bio{}, BIO_new(BIO_s_mem()) };
+        if (bio_memory.is_valid() == false) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"BIO_new failed.");
+        }
+
+        BIO_push(bio_b64.get(), bio_memory.get());
+
+        for (size_t written_length = 0, left_length = b64_string.length(); left_length != 0;) {
+            int length_to_write = static_cast<int>(std::min(left_length, static_cast<size_t>(INT_MAX)));
+
+            int r = BIO_write(bio_memory.get(), b64_string.data() + written_length, length_to_write);
+            if (r > 0) {
+                written_length += r;
+                left_length -= r;
+            } else {
+                throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"BIO_write failed.");
+            }
+        }
+
+        std::vector<uint8_t> retval;
+        retval.reserve(b64_string.length() * 3 / 4 + 1);
+
+        for (uint8_t buf[256];;) {
+            auto len = BIO_read(bio_b64.get(), buf, sizeof(buf));
+            if (len > 0) {
+                retval.insert(retval.end(), buf, buf + len);
+            } else {
+                break;
+            }
+        }
+
+        bio_memory.discard();   // the bio_chain `bio_b64` will free it
+
+        return retval;
+    }
+
+}
+
+#undef NKG_CURRENT_SOURCE_FILE
+#undef NKG_CURRENT_SOURCE_LINE

navicat-keygen/base64_rfc4648.hpp

@@ -0,0 +1,20 @@
+#pragma once
+#include <string>
+#include <vector>
+#include "exception.hpp"
+
+namespace nkg {
+
+    struct base64_rfc4648 {
+
+        class backend_error : public ::nkg::exception {
+        public:
+            backend_error(std::string_view file, int line, std::string_view message) noexcept :
+                ::nkg::exception(file, line, message) {}
+        };
+
+        static std::string encode(const std::vector<std::uint8_t>& data);
+        static std::vector<uint8_t> decode(std::string_view str_b64);
+    };
+
+}

navicat-keygen/navicat-keygen.vcxproj

@@ -0,0 +1,187 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>16.0</VCProjectVersion>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{6d262af4-5dac-4f0c-b3d6-23c9cbea9756}</ProjectGuid>
+    <RootNamespace>navicatkeygen</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+    <Import Project="..\common\common.vcxitems" Label="Shared" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+    <OutDir>$(SolutionDir)\bin\$(PlatformTarget)-$(Configuration)\</OutDir>
+    <IntDir>$(SolutionDir)\obj\$(PlatformTarget)-$(Configuration)\$(ProjectName)\</IntDir>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+    <OutDir>$(SolutionDir)\bin\$(PlatformTarget)-$(Configuration)\</OutDir>
+    <IntDir>$(SolutionDir)\obj\$(PlatformTarget)-$(Configuration)\$(ProjectName)\</IntDir>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <LinkIncremental>true</LinkIncremental>
+    <OutDir>$(SolutionDir)\bin\$(PlatformTarget)-$(Configuration)\</OutDir>
+    <IntDir>$(SolutionDir)\obj\$(PlatformTarget)-$(Configuration)\$(ProjectName)\</IntDir>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <LinkIncremental>false</LinkIncremental>
+    <OutDir>$(SolutionDir)\bin\$(PlatformTarget)-$(Configuration)\</OutDir>
+    <IntDir>$(SolutionDir)\obj\$(PlatformTarget)-$(Configuration)\$(ProjectName)\</IntDir>
+  </PropertyGroup>
+  <PropertyGroup Label="Vcpkg" />
+  <PropertyGroup Label="Vcpkg" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <VcpkgUseStatic>true</VcpkgUseStatic>
+  </PropertyGroup>
+  <PropertyGroup Label="Vcpkg" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <VcpkgUseStatic>true</VcpkgUseStatic>
+  </PropertyGroup>
+  <PropertyGroup Label="Vcpkg" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <VcpkgUseStatic>true</VcpkgUseStatic>
+  </PropertyGroup>
+  <PropertyGroup Label="Vcpkg" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <VcpkgUseStatic>true</VcpkgUseStatic>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+      <LanguageStandard>stdcpp17</LanguageStandard>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+      <LanguageStandard>stdcpp17</LanguageStandard>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+      <LanguageStandard>stdcpp17</LanguageStandard>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+      <LanguageStandard>stdcpp17</LanguageStandard>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="base32_rfc4648.cpp" />
+    <ClCompile Include="base64_rfc4648.cpp" />
+    <ClCompile Include="CollectInformation.cpp" />
+    <ClCompile Include="GenerateLicense.cpp" />
+    <ClCompile Include="navicat_serial_generator.cpp" />
+    <ClCompile Include="wmain.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="base32_rfc4648.hpp" />
+    <ClInclude Include="base64_rfc4648.hpp" />
+    <ClInclude Include="navicat_serial_generator.hpp" />
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

navicat-keygen/navicat-keygen.vcxproj.filters

@@ -0,0 +1,48 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="源文件">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="头文件">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="资源文件">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="wmain.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+    <ClCompile Include="base64_rfc4648.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+    <ClCompile Include="navicat_serial_generator.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+    <ClCompile Include="CollectInformation.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+    <ClCompile Include="GenerateLicense.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+    <ClCompile Include="base32_rfc4648.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="base64_rfc4648.hpp">
+      <Filter>头文件</Filter>
+    </ClInclude>
+    <ClInclude Include="navicat_serial_generator.hpp">
+      <Filter>头文件</Filter>
+    </ClInclude>
+    <ClInclude Include="base32_rfc4648.hpp">
+      <Filter>头文件</Filter>
+    </ClInclude>
+  </ItemGroup>
+</Project>

navicat-keygen/navicat-keygen.vcxproj.user

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <ShowAllFiles>true</ShowAllFiles>
+  </PropertyGroup>
+</Project>

navicat-keygen/navicat_serial_generator.cpp

@@ -0,0 +1,162 @@
+#include "navicat_serial_generator.hpp"
+#include "exception.hpp"
+#include "base32_rfc4648.hpp"
+#include <fmt/format.h>
+#include <openssl/rand.h>
+#include <algorithm>
+
+#define NKG_CURRENT_SOURCE_FILE() u8".\\navicat-keygen\\navicat_serial_generator.cpp"
+#define NKG_CURRENT_SOURCE_LINE() __LINE__
+
+namespace nkg {
+
+    navicat_serial_generator::navicat_serial_generator() noexcept :
+        m_data{ 0x68 , 0x2A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x32 }, m_des_key{} {}
+
+    void navicat_serial_generator::set_software_language(navicat_software_language lang) noexcept {
+        switch (lang) {
+            case navicat_software_language::English:
+                m_data[5] = 0xAC;       // Must be 0xAC for English version.
+                m_data[6] = 0x88;       // Must be 0x88 for English version.
+                break;
+            case navicat_software_language::SimplifiedChinese:
+                m_data[5] = 0xCE;       // Must be 0xCE for Simplified Chinese version.
+                m_data[6] = 0x32;       // Must be 0x32 for Simplified Chinese version.
+                break;
+            case navicat_software_language::TraditionalChinese:
+                m_data[5] = 0xAA;       // Must be 0xAA for Traditional Chinese version.
+                m_data[6] = 0x99;       // Must be 0x99 for Traditional Chinese version.
+                break;
+            case navicat_software_language::Japanese:
+                m_data[5] = 0xAD;       // Must be 0xAD for Japanese version. Discoverer: @dragonflylee
+                m_data[6] = 0x82;       // Must be 0x82 for Japanese version. Discoverer: @dragonflylee
+                break;
+            case navicat_software_language::Polish:
+                m_data[5] = 0xBB;       // Must be 0xBB for Polish version. Discoverer: @dragonflylee
+                m_data[6] = 0x55;       // Must be 0x55 for Polish version. Discoverer: @dragonflylee
+                break;
+            case navicat_software_language::Spanish:
+                m_data[5] = 0xAE;       // Must be 0xAE for Spanish version. Discoverer: @dragonflylee
+                m_data[6] = 0x10;       // Must be 0x10 for Spanish version. Discoverer: @dragonflylee
+                break;
+            case navicat_software_language::French:
+                m_data[5] = 0xFA;       // Must be 0xFA for French version. Discoverer: @Deltafox79
+                m_data[6] = 0x20;       // Must be 0x20 for French version. Discoverer: @Deltafox79
+                break;
+            case navicat_software_language::German:
+                m_data[5] = 0xB1;       // Must be 0xB1 for German version. Discoverer: @dragonflylee
+                m_data[6] = 0x60;       // Must be 0x60 for German version. Discoverer: @dragonflylee
+                break;
+            case navicat_software_language::Korean:
+                m_data[5] = 0xB5;       // Must be 0xB5 for Korean version. Discoverer: @dragonflylee
+                m_data[6] = 0x60;       // Must be 0x60 for Korean version. Discoverer: @dragonflylee
+                break;
+            case navicat_software_language::Russian:
+                m_data[5] = 0xEE;       // Must be 0xB5 for Russian version. Discoverer: @dragonflylee
+                m_data[6] = 0x16;       // Must be 0x60 for Russian version. Discoverer: @dragonflylee
+                break;
+            case navicat_software_language::Portuguese:
+                m_data[5] = 0xCD;       // Must be 0xCD for Portuguese version. Discoverer: @dragonflylee
+                m_data[6] = 0x49;       // Must be 0x49 for Portuguese version. Discoverer: @dragonflylee
+                break;
+            default:
+                break;
+        }
+    }
+
+    void navicat_serial_generator::set_software_language(uint8_t lang_sig0, uint8_t lang_sig1) noexcept {
+        m_data[5] = lang_sig0;
+        m_data[6] = lang_sig1;
+    }
+
+    void navicat_serial_generator::set_software_type(navicat_software_type software_type) noexcept {
+        switch (software_type) {
+            case navicat_software_type::DataModeler:
+                m_data[7] = 0x84;
+                break;
+            case navicat_software_type::Premium:
+                m_data[7] = 0x65;
+                break;
+            case navicat_software_type::MySQL:
+                m_data[7] = 0x68;
+                break;
+            case navicat_software_type::PostgreSQL:
+                m_data[7] = 0x6C;
+                break;
+            case navicat_software_type::Oracle:
+                m_data[7] = 0x70;
+                break;
+            case navicat_software_type::SQLServer:
+                m_data[7] = 0x74;
+                break;
+            case navicat_software_type::SQLite:
+                m_data[7] = 0x78;
+                break;
+            case navicat_software_type::MariaDB:
+                m_data[7] = 0x7C;
+                break;
+            case navicat_software_type::MongoDB:
+                m_data[7] = 0x80;
+                break;
+            case navicat_software_type::ReportViewer:
+                m_data[7] = 0xb;
+                break;
+            default:
+                break;
+        }
+    }
+
+    void navicat_serial_generator::set_software_type(uint8_t software_type_sig) noexcept {
+        m_data[7] = software_type_sig;
+    }
+
+    void navicat_serial_generator::set_software_version(int ver) {
+        if (11 <= ver && ver < 16) {
+            m_data[8] = static_cast<std::uint8_t>((ver << 4) | (m_data[8] & 0x0f));
+            memcpy(m_des_key, s_des_key0, sizeof(s_des_key0));
+        } else if (16 <= ver && ver < 32) {
+            m_data[8] = static_cast<std::uint8_t>(((ver - 16) << 4) | (m_data[8] & 0x0f));
+            memcpy(m_des_key, s_des_key1, sizeof(s_des_key1));
+        } else {
+            throw exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Invalid navicat version.");
+        }
+    }
+
+    void navicat_serial_generator::generate() {
+        RAND_bytes(m_data + 2, 3);
+
+        DES_key_schedule schedule;
+        DES_set_key_unchecked(&m_des_key, &schedule);
+        DES_ecb_encrypt(reinterpret_cast<const_DES_cblock*>(m_data + 2), reinterpret_cast<const_DES_cblock*>(m_data + 2), &schedule, DES_ENCRYPT);
+
+        m_serial_number = base32_rfc4648::encode(m_data, sizeof(m_data));
+        std::transform(
+            m_serial_number.begin(), m_serial_number.end(), m_serial_number.begin(), 
+            [](char c) -> char {
+                if (c == 'I') {
+                    return '8';
+                } else if (c == 'O') {
+                    return '9';
+                } else {
+                    return c;
+                }
+            }
+        );
+
+        std::string_view sn = m_serial_number;
+        m_serial_number_formatted = fmt::format("{}-{}-{}-{}", sn.substr(0, 4), sn.substr(4, 4), sn.substr(8, 4), sn.substr(12, 4));
+    }
+
+    [[nodiscard]]
+    const std::string& navicat_serial_generator::serial_number() const noexcept {
+        return m_serial_number;
+    }
+
+    [[nodiscard]]
+    const std::string& navicat_serial_generator::serial_number_formatted() const noexcept {
+        return m_serial_number_formatted;
+    }
+}
+
+#undef NKG_CURRENT_SOURCE_LINE
+#undef NKG_CURRENT_SOURCE_FILE

navicat-keygen/navicat_serial_generator.hpp

@@ -0,0 +1,66 @@
+#pragma once
+#include <string>
+#include <vector>
+#include <openssl/des.h>
+
+namespace nkg {
+
+    enum class navicat_software_language {
+        English,
+        SimplifiedChinese,
+        TraditionalChinese,
+        Japanese,
+        Polish,
+        Spanish,
+        French,
+        German,
+        Korean,
+        Russian,
+        Portuguese
+    };
+
+    enum class navicat_software_type {
+        DataModeler,
+        Premium,
+        MySQL,
+        PostgreSQL,
+        Oracle,
+        SQLServer,
+        SQLite,
+        MariaDB,
+        MongoDB,
+        ReportViewer
+    };
+
+    class navicat_serial_generator {
+    private:
+        static inline const DES_cblock s_des_key0 = { 0x64, 0xAD, 0xF3, 0x2F, 0xAE, 0xF2, 0x1A, 0x27 };
+        static inline const DES_cblock s_des_key1 = { 0xE9, 0x7F, 0xB0, 0x60, 0x77, 0x45, 0x90, 0xAE };
+
+        uint8_t m_data[10];
+        DES_cblock m_des_key;
+        std::string m_serial_number;
+        std::string m_serial_number_formatted;
+
+    public:
+        navicat_serial_generator() noexcept;
+
+        void set_software_language(navicat_software_language lang) noexcept;
+        void set_software_language(uint8_t lang_sig0, uint8_t lang_sig1) noexcept;
+
+        void set_software_type(navicat_software_type software_type) noexcept;
+        void set_software_type(uint8_t software_type_sig) noexcept;
+
+        void set_software_version(int Version);
+
+        void generate();
+
+        [[nodiscard]]
+        const std::string& serial_number() const noexcept;
+
+        [[nodiscard]]
+        const std::string& serial_number_formatted() const noexcept;
+    };
+
+}
+

navicat-keygen/wmain.cpp

@@ -0,0 +1,124 @@
+#include <stdio.h>
+#include <functional>
+
+#include "exception.hpp"
+#include "exceptions/operation_canceled_exception.hpp"
+
+#include "cp_converter.hpp"
+#include "base64_rfc4648.hpp"
+#include "navicat_serial_generator.hpp"
+#include "rsa_cipher.hpp"
+
+#define NKG_CURRENT_SOURCE_FILE() u8".\\navicat-keygen\\wmain.cpp"
+#define NKG_CURRENT_SOURCE_LINE() __LINE__
+
+namespace nkg {
+    using fnCollectInformation = std::function<navicat_serial_generator()>;
+    using fnGenerateLicense = std::function<void(const rsa_cipher& cipher, const navicat_serial_generator& generator)>;
+
+    navicat_serial_generator CollectInformationNormal();
+    navicat_serial_generator CollectInformationAdvanced();
+    void GenerateLicenseText(const rsa_cipher& cipher, const navicat_serial_generator& sn_generator);
+    void GenerateLicenseBinary(const rsa_cipher& cipher, const navicat_serial_generator& sn_generator);
+}
+
+static void welcome() {
+    _putws(L"***************************************************");
+    _putws(L"*       navicat-keygen by @DoubleLabyrinth        *");
+    _putws(L"*                version: 16.0.7.0                *");
+    _putws(L"***************************************************");
+    _putws(L"");
+}
+
+static void help() {
+    _putws(L"Usage:");
+    _putws(L"    navicat-keygen.exe <-bin|-text> [-adv] <RSA-2048 Private Key File>");
+    _putws(L"");
+    _putws(L"    <-bin|-text>       Specify \"-bin\" to generate \"license_file\" used by Navicat 11.");
+    _putws(L"                       Specify \"-text\" to generate base64-encoded activation code.");
+    _putws(L"                       This parameter must be specified.");
+    _putws(L"");
+    _putws(L"    [-adv]             Enable advance mode.");
+    _putws(L"                       This parameter is optional.");
+    _putws(L"");
+    _putws(L"    <RSA-2048 Private Key File>    A path to an RSA-2048 private key file.");
+    _putws(L"                                   This parameter must be specified.");
+    _putws(L"");
+    _putws(L"Example:");
+    _putws(L"    navicat-keygen.exe -text .\\RegPrivateKey.pem");
+}
+
+int wmain(int argc, wchar_t* argv[]) {
+    welcome();
+
+    if (argc == 3 || argc == 4) {
+        nkg::fnCollectInformation lpfnCollectInformation;
+        nkg::fnGenerateLicense lpfnGenerateLicense;
+
+        if (_wcsicmp(argv[1], L"-bin") == 0) {
+            lpfnGenerateLicense = nkg::GenerateLicenseBinary;
+        } else if (_wcsicmp(argv[1], L"-text") == 0) {
+            lpfnGenerateLicense = nkg::GenerateLicenseText;
+        } else {
+            help();
+            return -1;
+        }
+
+        if (argc == 4) {
+            if (_wcsicmp(argv[2], L"-adv") == 0) {
+                lpfnCollectInformation = nkg::CollectInformationAdvanced;
+            } else {
+                help();
+                return -1;
+            }
+        } else {
+            lpfnCollectInformation = nkg::CollectInformationNormal;
+        }
+
+        try {
+            nkg::rsa_cipher cipher;
+
+            cipher.import_private_key_file(nkg::cp_converter<-1, CP_UTF8>::convert(argv[argc - 1]));
+            if (cipher.bits() != 2048) {
+                throw nkg::exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"RSA key length mismatches.")
+                    .push_hint(u8"You must provide an RSA key whose modulus length is 2048 bits.");
+            }
+
+            auto sn_generator = lpfnCollectInformation();
+
+            sn_generator.generate();
+
+            _putws(L"[*] Serial number:");
+            _putws(nkg::cp_converter<CP_UTF8, -1>::convert(sn_generator.serial_number_formatted()).c_str());
+            _putws(L"");
+
+            lpfnGenerateLicense(cipher, sn_generator);
+
+            return 0;
+        } catch (nkg::exceptions::operation_canceled_exception&) {
+            return -1;
+        } catch (nkg::exception& e) {
+            wprintf_s(L"[-] %s:%d ->\n", nkg::cp_converter<CP_UTF8, -1>::convert(e.source_file()).c_str(), e.source_line());
+            wprintf_s(L"    %s\n", nkg::cp_converter<CP_UTF8, -1>::convert(e.custom_message()).c_str());
+
+            if (e.error_code_exists()) {
+                wprintf_s(L"    %s (0x%zx)\n", nkg::cp_converter<CP_UTF8, -1>::convert(e.error_string()).c_str(), e.error_code());
+            }
+
+            for (auto& hint : e.hints()) {
+                wprintf_s(L"    Hints: %s\n", nkg::cp_converter<CP_UTF8, -1>::convert(hint).c_str());
+            }
+
+            return -1;
+        } catch (std::exception& e) {
+            wprintf_s(L"[-] %s\n", nkg::cp_converter<CP_UTF8, -1>::convert(e.what()).c_str());
+            return -1;
+        }
+    } else {
+        help();
+        return -1;
+    }
+}
+
+#undef NKG_CURRENT_SOURCE_FILE
+#undef NKG_CURRENT_SOURCE_LINE

navicat-patcher/amd64_emulator.cpp

@@ -0,0 +1,200 @@
+#define _CRT_SECURE_NO_WARNINGS
+#include "amd64_emulator.hpp"
+#include "exceptions/key_exception.hpp"
+
+#define NKG_CURRENT_SOURCE_FILE() u8".\\navicat-patcher\\amd64_emulator.cpp"
+#define NKG_CURRENT_SOURCE_LINE() __LINE__
+
+namespace nkg {
+
+    void amd64_emulator::_unicorn_hookcode_cb_stub(uc_engine* uc, uint64_t address, uint32_t size, void* user_data) {
+        auto hook_stub_ctx = reinterpret_cast<hook_stub_context_t*>(user_data);
+        hook_stub_ctx->self->m_unicorn_hook_cbs_hookcode[hook_stub_ctx->unicorn_hook_handle](address, size);
+    }
+
+    void amd64_emulator::_unicorn_hookmem_cb_stub(uc_engine* uc, uc_mem_type type, uint64_t address, int size, int64_t value, void* user_data) {
+        auto hook_stub_ctx = reinterpret_cast<hook_stub_context_t*>(user_data);
+        hook_stub_ctx->self->m_unicorn_hook_cbs_hookmem[hook_stub_ctx->unicorn_hook_handle](type, address, static_cast<unsigned int>(size), value);
+    }
+
+    bool amd64_emulator::_unicorn_eventmem_cb_stub(uc_engine* uc, uc_mem_type type, uint64_t address, int size, int64_t value, void* user_data) {
+        auto hook_stub_ctx = reinterpret_cast<hook_stub_context_t*>(user_data);
+        return hook_stub_ctx->self->m_unicorn_hook_cbs_eventmem[hook_stub_ctx->unicorn_hook_handle](type, address, static_cast<unsigned int>(size), value);
+    }
+
+    amd64_emulator::amd64_emulator() {
+        auto err = uc_open(UC_ARCH_X86, UC_MODE_64, m_unicorn_engine.unsafe_addressof());
+        if (err != UC_ERR_OK) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_open failed.");
+        }
+    }
+
+    void amd64_emulator::reg_read(int regid, void* value) {
+        auto err = uc_reg_read(m_unicorn_engine.get(), regid, value);
+        if (err != UC_ERR_OK) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_reg_read failed.");
+        }
+    }
+
+    void amd64_emulator::reg_write(int regid, const void* value) {
+        auto err = uc_reg_write(m_unicorn_engine.get(), regid, value);
+        if (err != UC_ERR_OK) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_reg_write failed.");
+        }
+    }
+
+    uint64_t amd64_emulator::msr_read(uint32_t rid) {
+        uc_x86_msr msr;
+        msr.rid = rid;
+
+        auto err = uc_reg_read(m_unicorn_engine.get(), UC_X86_REG_MSR, &msr);
+        if (err != UC_ERR_OK) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_reg_write failed.");
+        }
+
+        return msr.value;
+    }
+
+    void amd64_emulator::msr_write(uint32_t rid, uint64_t value) {
+        uc_x86_msr msr;
+        msr.rid = rid;
+        msr.value = value;
+
+        auto err = uc_reg_write(m_unicorn_engine.get(), UC_X86_REG_MSR, &msr);
+        if (err != UC_ERR_OK) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_reg_write failed.");
+        }
+    }
+
+    void amd64_emulator::mem_map(uint64_t address, size_t size, uint32_t perms) {
+        auto err = uc_mem_map(m_unicorn_engine.get(), address, size, perms);
+        if (err) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_mem_map failed.");
+        }
+    }
+
+    void amd64_emulator::mem_unmap(uint64_t address, size_t size) {
+        auto err = uc_mem_unmap(m_unicorn_engine.get(), address, size);
+        if (err) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_mem_unmap failed.");
+        }
+    }
+
+    void amd64_emulator::mem_read(uint64_t address, void* buf, size_t size) {
+        auto err = uc_mem_read(m_unicorn_engine.get(), address, buf, size);
+        if (err) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_mem_read failed.");
+        }
+    }
+
+    std::vector<uint8_t> amd64_emulator::mem_read(uint64_t address, size_t size) {
+        std::vector<uint8_t> ret_buf(size);
+
+        auto err = uc_mem_read(m_unicorn_engine.get(), address, ret_buf.data(), ret_buf.size());
+        if (err) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_mem_read failed.");
+        }
+
+        return ret_buf;
+    }
+
+    void amd64_emulator::mem_write(uint64_t address, const void* buf, size_t size) {
+        auto err = uc_mem_write(m_unicorn_engine.get(), address, buf, size);
+        if (err) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_mem_write failed.");
+        }
+    }
+
+    void amd64_emulator::mem_write(uint64_t address, const std::vector<uint8_t>& buf) {
+        mem_write(address, buf.data(), buf.size());
+    }
+
+    void amd64_emulator::hook_del(uc_hook hook_handle) {
+        auto iter_of_hook_stub_ctxs = m_unicorn_hook_stub_ctxs.find(hook_handle);
+        if (iter_of_hook_stub_ctxs == m_unicorn_hook_stub_ctxs.end()) {
+            throw exceptions::key_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Target hook is not found.");
+        }
+
+        auto iter_of_hook_cbs_hookcode = m_unicorn_hook_cbs_hookcode.find(hook_handle);
+        if (iter_of_hook_cbs_hookcode != m_unicorn_hook_cbs_hookcode.end()) {
+            auto err = uc_hook_del(m_unicorn_engine.get(), hook_handle);
+            if (err) {
+                throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"hook_del failed.");
+            }
+
+            m_unicorn_hook_cbs_hookcode.erase(iter_of_hook_cbs_hookcode);
+            m_unicorn_hook_stub_ctxs.erase(iter_of_hook_stub_ctxs);
+            return;
+        }
+
+        auto iter_of_hook_cbs_hookmem = m_unicorn_hook_cbs_hookmem.find(hook_handle);
+        if (iter_of_hook_cbs_hookmem != m_unicorn_hook_cbs_hookmem.end()) {
+            auto err = uc_hook_del(m_unicorn_engine.get(), hook_handle);
+            if (err) {
+                throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"hook_del failed.");
+            }
+
+            m_unicorn_hook_cbs_hookmem.erase(iter_of_hook_cbs_hookmem);
+            m_unicorn_hook_stub_ctxs.erase(iter_of_hook_stub_ctxs);
+            return;
+        }
+
+        auto iter_of_hook_cbs_eventmem = m_unicorn_hook_cbs_eventmem.find(hook_handle);
+        if (iter_of_hook_cbs_eventmem != m_unicorn_hook_cbs_eventmem.end()) {
+            auto err = uc_hook_del(m_unicorn_engine.get(), hook_handle);
+            if (err) {
+                throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"hook_del failed.");
+            }
+
+            m_unicorn_hook_cbs_eventmem.erase(iter_of_hook_cbs_eventmem);
+            m_unicorn_hook_stub_ctxs.erase(iter_of_hook_stub_ctxs);
+            return;
+        }
+
+        __assume(false);
+    }
+
+    void amd64_emulator::emu_start(uint64_t begin_address, uint64_t end_address, uint64_t timeout, size_t count) {
+        auto err = uc_emu_start(m_unicorn_engine.get(), begin_address, end_address, timeout, count);
+        if (err) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"emu_start failed.");
+        }
+    }
+
+    void amd64_emulator::emu_stop() {
+        auto err = uc_emu_stop(m_unicorn_engine.get());
+        if (err) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_emu_stop failed.");
+        }
+    }
+
+    //void amd64_emulator::create_gdt_entry(uint64_t gdt_entry_address, uint32_t base, uint32_t limit, uint8_t access_byte, uint8_t flags) {
+    //    struct {
+    //        uint16_t limit0;
+    //        uint16_t base0;
+    //        uint8_t base1;
+    //        uint8_t access_byte;
+    //        uint8_t limit1 : 4;
+    //        uint8_t flags : 4;
+    //        uint8_t base2;
+    //    } segment_descriptor;
+
+    //    static_assert(sizeof(segment_descriptor) == 8);
+
+    //    segment_descriptor.limit0 = limit & 0xffff;
+    //    segment_descriptor.base0 = base & 0xffff;
+    //    segment_descriptor.base1 = (base >> 16) & 0xff;
+    //    segment_descriptor.access_byte = access_byte;
+    //    segment_descriptor.limit1 = (limit >> 16) & 0xf;
+    //    segment_descriptor.flags = flags & 0xf;
+    //    segment_descriptor.base2 = (base >> 24) & 0xff;
+
+    //    auto err = uc_mem_write(m_unicorn_engine.get(), gdt_entry_address, &segment_descriptor, sizeof(segment_descriptor));
+    //    if (err != UC_ERR_OK) {
+    //        throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_mem_write failed.");
+    //    }
+    //}
+}
+
+#undef NKG_CURRENT_SOURCE_LINE
+#undef NKG_CURRENT_SOURCE_FILE

navicat-patcher/amd64_emulator.hpp

@@ -0,0 +1,159 @@
+#pragma once
+#include <winsock2.h>
+#include <windows.h>
+#include <unicorn/unicorn.h>
+
+#include <any>
+#include <memory>
+#include <string>
+#include <unordered_map>
+#include <functional>
+
+#include "resource_wrapper.hpp"
+#include "resource_traits/unicorn/unicorn_handle.hpp"
+
+#include "exception.hpp"
+
+#define NKG_CURRENT_SOURCE_FILE() u8".\\navicat-patcher\\amd64_emulator.hpp"
+#define NKG_CURRENT_SOURCE_LINE() __LINE__
+
+namespace nkg {
+
+    class amd64_emulator {
+    public:
+        class backend_error : public ::nkg::exception {
+        public:
+            using error_code_t = uc_err;
+
+        private:
+            error_code_t m_error_code;
+            std::string m_error_string;
+
+        public:
+            backend_error(std::string_view file, int line, error_code_t unicorn_err, std::string_view message) noexcept :
+                ::nkg::exception(file, line, message), m_error_code(unicorn_err), m_error_string(uc_strerror(unicorn_err)) {}
+
+            [[nodiscard]]
+            virtual bool error_code_exists() const noexcept override {
+                return true;
+            }
+
+            [[nodiscard]]
+            virtual intptr_t error_code() const noexcept override {
+                return m_error_code;
+            }
+
+            [[nodiscard]]
+            virtual const std::string& error_string() const noexcept override {
+                return m_error_string;
+            }
+        };
+
+        using hookcode_cb_t = void(uint64_t address, size_t size);
+        using hookmem_cb_t = void(uc_mem_type type, uint64_t address, size_t size, int64_t value);
+        using eventmem_cb_t = bool(uc_mem_type type, uint64_t address, size_t size, int64_t value);
+
+    private:
+        struct hook_stub_context_t {
+            amd64_emulator* self;
+            uc_hook unicorn_hook_handle;
+        };
+
+        resource_wrapper<resource_traits::unicorn::unicorn_handle>    m_unicorn_engine;
+        std::unordered_map<std::string, std::any>                    m_unicorn_user_ctx;
+
+        std::unordered_map<uc_hook, std::unique_ptr<hook_stub_context_t>> m_unicorn_hook_stub_ctxs;
+
+        std::unordered_map<uc_hook, std::function<hookcode_cb_t>>    m_unicorn_hook_cbs_hookcode;
+        std::unordered_map<uc_hook, std::function<hookmem_cb_t>>    m_unicorn_hook_cbs_hookmem;
+        std::unordered_map<uc_hook, std::function<eventmem_cb_t>>    m_unicorn_hook_cbs_eventmem;
+
+        static void _unicorn_hookcode_cb_stub(uc_engine* uc, uint64_t address, uint32_t size, void* user_data);
+        static void _unicorn_hookmem_cb_stub(uc_engine* uc, uc_mem_type type, uint64_t address, int size, int64_t value, void* user_data);
+        static bool _unicorn_eventmem_cb_stub(uc_engine* uc, uc_mem_type type, uint64_t address, int size, int64_t value, void* user_data);
+
+    public:
+        amd64_emulator();
+
+        void reg_read(int regid, void* buf);
+
+        void reg_write(int regid, const void* buf);
+
+        uint64_t msr_read(uint32_t rid);
+
+        void msr_write(uint32_t rid, uint64_t value);
+
+        void mem_map(uint64_t address, size_t size, uint32_t perms);
+
+        void mem_unmap(uint64_t address, size_t size);
+
+        void mem_read(uint64_t address, void* buf, size_t size);
+
+        std::vector<uint8_t> mem_read(uint64_t address, size_t size);
+
+        void mem_write(uint64_t address, const void* buf, size_t size);
+
+        void mem_write(uint64_t address, const std::vector<uint8_t>& buf);
+
+        template<int hook_type, typename callable_t>
+        uc_hook hook_add(callable_t&& hook_callback, uint64_t begin_address = 1, uint64_t end_address = 0) {
+            uc_err err;
+
+            auto hook_stub_ctx = std::make_unique<hook_stub_context_t>();
+            hook_stub_ctx->self = this;
+            hook_stub_ctx->unicorn_hook_handle = 0;
+
+            if constexpr (hook_type == UC_HOOK_CODE) {
+                err = uc_hook_add(m_unicorn_engine.get(), &hook_stub_ctx->unicorn_hook_handle, hook_type, _unicorn_hookcode_cb_stub, hook_stub_ctx.get(), begin_address, end_address);
+                if (err != UC_ERR_OK) {
+                    throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_hook_add failed.");
+                }
+
+                m_unicorn_hook_cbs_hookcode.emplace(std::make_pair(hook_stub_ctx->unicorn_hook_handle, std::forward<callable_t>(hook_callback)));
+            } else if constexpr ((hook_type & ~UC_HOOK_MEM_VALID) == 0) {
+                err = uc_hook_add(m_unicorn_engine.get(), &hook_stub_ctx->unicorn_hook_handle, hook_type, _unicorn_hookmem_cb_stub, hook_stub_ctx.get(), begin_address, end_address);
+                if (err != UC_ERR_OK) {
+                    throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_hook_add failed.");
+                }
+
+                m_unicorn_hook_cbs_hookmem.emplace(std::make_pair(hook_stub_ctx->unicorn_hook_handle, std::forward<callable_t>(hook_callback)));
+            } else if constexpr ((hook_type & ~UC_HOOK_MEM_UNMAPPED) == 0) {
+                err = uc_hook_add(m_unicorn_engine.get(), &hook_stub_ctx->unicorn_hook_handle, hook_type, _unicorn_eventmem_cb_stub, hook_stub_ctx.get(), begin_address, end_address);
+                if (err != UC_ERR_OK) {
+                    throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_hook_add failed.");
+                }
+
+                m_unicorn_hook_cbs_eventmem.emplace(std::make_pair(hook_stub_ctx->unicorn_hook_handle, std::forward<callable_t>(hook_callback)));
+            } else {
+                static_assert(
+                    hook_type == UC_HOOK_CODE ||
+                    (hook_type & ~UC_HOOK_MEM_VALID) == 0 ||
+                    (hook_type & ~UC_HOOK_MEM_UNMAPPED) == 0, "Unsupported hook type.");
+            }
+
+            return m_unicorn_hook_stub_ctxs.emplace(std::make_pair(hook_stub_ctx->unicorn_hook_handle, std::move(hook_stub_ctx))).first->first;
+        }
+
+        void hook_del(uc_hook hook_handle);
+
+        void emu_start(uint64_t begin_address, uint64_t end_address = 0, uint64_t timeout = 0, size_t count = 0);
+
+        void emu_stop();
+
+        // void create_gdt_entry(uint64_t gdt_entry_address, uint32_t base, uint32_t limit, uint8_t access_byte, uint8_t flags);
+
+        template<typename val_t>
+        void context_set(const std::string& name, val_t&& value) {
+            m_unicorn_user_ctx[name] = std::forward<val_t>(value);
+        }
+
+        template<typename val_t>
+        val_t context_get(const std::string& name) {
+            return std::any_cast<val_t>(m_unicorn_user_ctx[name]);
+        }
+    };
+
+}
+
+#undef NKG_CURRENT_SOURCE_LINE
+#undef NKG_CURRENT_SOURCE_FILE

navicat-patcher/i386_emulator.cpp

@@ -0,0 +1,160 @@
+#define _CRT_SECURE_NO_WARNINGS
+#include "i386_emulator.hpp"
+#include "exceptions/key_exception.hpp"
+
+#define NKG_CURRENT_SOURCE_FILE() u8".\\navicat-patcher\\i386_emulator.cpp"
+#define NKG_CURRENT_SOURCE_LINE() __LINE__
+
+namespace nkg {
+
+    void i386_emulator::_unicorn_hookcode_cb_stub(uc_engine* uc, uint64_t address, uint32_t size, void* user_data) {
+        auto hook_stub_ctx = 
+            reinterpret_cast<hook_stub_context_t*>(user_data);
+
+        auto& hook_callback = 
+            std::any_cast<std::function<hookcode_cb_t>&>(hook_stub_ctx->self->m_unicorn_hook_callbacks[hook_stub_ctx->unicorn_hook_handle]);
+
+        hook_callback(static_cast<uint32_t>(address), size);
+    }
+
+    void i386_emulator::_unicorn_hookmem_cb_stub(uc_engine* uc, uc_mem_type type, uint64_t address, int size, int64_t value, void* user_data) {
+        auto hook_stub_ctx = 
+            reinterpret_cast<hook_stub_context_t*>(user_data);
+
+        auto& hook_callback =
+            std::any_cast<std::function<hookmem_cb_t>&>(hook_stub_ctx->self->m_unicorn_hook_callbacks[hook_stub_ctx->unicorn_hook_handle]);
+
+        hook_callback(type, static_cast<uint32_t>(address), static_cast<unsigned int>(size), static_cast<int32_t>(value));
+    }
+
+    bool i386_emulator::_unicorn_eventmem_cb_stub(uc_engine* uc, uc_mem_type type, uint64_t address, int size, int64_t value, void* user_data) {
+        auto hook_stub_ctx = 
+            reinterpret_cast<hook_stub_context_t*>(user_data);
+
+        auto& hook_callback =
+            std::any_cast<std::function<eventmem_cb_t>&>(hook_stub_ctx->self->m_unicorn_hook_callbacks[hook_stub_ctx->unicorn_hook_handle]);
+
+        return hook_callback(type, static_cast<uint32_t>(address), static_cast<unsigned int>(size), static_cast<int32_t>(value));
+    }
+
+    i386_emulator::i386_emulator() {
+        auto err = uc_open(UC_ARCH_X86, UC_MODE_32, m_unicorn_engine.unsafe_addressof());
+        if (err != UC_ERR_OK) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_open failed.");
+        }
+    }
+
+    void i386_emulator::reg_read(int regid, void* value) {
+        auto err = uc_reg_read(m_unicorn_engine.get(), regid, value);
+        if (err != UC_ERR_OK) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_reg_read failed.");
+        }
+    }
+
+    void i386_emulator::reg_write(int regid, const void* value) {
+        auto err = uc_reg_write(m_unicorn_engine.get(), regid, value);
+        if (err != UC_ERR_OK) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_reg_write failed.");
+        }
+    }
+
+    void i386_emulator::mem_map(uint32_t address, size_t size, uint32_t perms) {
+        auto err = uc_mem_map(m_unicorn_engine.get(), address, size, perms);
+        if (err) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_mem_map failed.");
+        }
+    }
+
+    void i386_emulator::mem_unmap(uint32_t address, size_t size) {
+        auto err = uc_mem_unmap(m_unicorn_engine.get(), address, size);
+        if (err) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_mem_unmap failed.");
+        }
+    }
+
+    void i386_emulator::mem_read(uint32_t address, void* buf, size_t size) {
+        auto err = uc_mem_read(m_unicorn_engine.get(), address, buf, size);
+        if (err) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_mem_read failed.");
+        }
+    }
+
+    std::vector<uint8_t> i386_emulator::mem_read(uint32_t address, size_t size) {
+        std::vector<uint8_t> ret_buf(size);
+
+        auto err = uc_mem_read(m_unicorn_engine.get(), address, ret_buf.data(), ret_buf.size());
+        if (err) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_mem_read failed.");
+        }
+
+        return ret_buf;
+    }
+
+    void i386_emulator::mem_write(uint32_t address, const void* buf, size_t size) {
+        auto err = uc_mem_write(m_unicorn_engine.get(), address, buf, size);
+        if (err) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_mem_write failed.");
+        }
+    }
+
+    void i386_emulator::mem_write(uint32_t address, const std::vector<uint8_t>& buf) {
+        mem_write(address, buf.data(), buf.size());
+    }
+
+    void i386_emulator::hook_del(uc_hook hook_handle) {
+        auto iter_of_hook_stub_ctxs = m_unicorn_hook_stub_ctxs.find(hook_handle);
+        if (iter_of_hook_stub_ctxs == m_unicorn_hook_stub_ctxs.end()) {
+            throw exceptions::key_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Target hook is not found.");
+        }
+
+        auto iter_of_hook_callbacks = m_unicorn_hook_callbacks.find(hook_handle);
+        if (iter_of_hook_callbacks != m_unicorn_hook_callbacks.end()) {
+            auto err = uc_hook_del(m_unicorn_engine.get(), hook_handle);
+            if (err) {
+                throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"hook_del failed.");
+            }
+
+            m_unicorn_hook_callbacks.erase(iter_of_hook_callbacks);
+            m_unicorn_hook_stub_ctxs.erase(iter_of_hook_stub_ctxs);
+            return;
+        }
+
+        __assume(false);
+    }
+
+    void i386_emulator::create_gdt_entry(uint32_t gdt_entry_address, uint32_t base, uint32_t limit, uint8_t access_byte, uint8_t flags) {
+        struct {
+            uint64_t limit0 : 16;
+            uint64_t base0 : 24;
+            uint64_t access_byte : 8;
+            uint64_t limit1 : 4;
+            uint64_t flags : 4;
+            uint64_t base1 : 8;
+        } gdt_entry;
+
+        gdt_entry.limit0 = limit & 0xffff;
+        gdt_entry.base0 = base & 0xffffff;
+        gdt_entry.access_byte = access_byte;
+        gdt_entry.flags = flags & 0xf;
+        gdt_entry.base1 = (base & 0xff000000) >> 24;
+
+        mem_write(gdt_entry_address, &gdt_entry, sizeof(gdt_entry));
+    }
+
+    void i386_emulator::emu_start(uint32_t begin_address, uint32_t end_address, uint64_t timeout, size_t count) {
+        auto err = uc_emu_start(m_unicorn_engine.get(), begin_address, end_address, timeout, count);
+        if (err) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"emu_start failed.");
+        }
+    }
+
+    void i386_emulator::emu_stop() {
+        auto err = uc_emu_stop(m_unicorn_engine.get());
+        if (err) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_emu_stop failed.");
+        }
+    }
+}
+
+#undef NKG_CURRENT_SOURCE_LINE
+#undef NKG_CURRENT_SOURCE_FILE

navicat-patcher/i386_emulator.hpp

@@ -0,0 +1,152 @@
+#pragma once
+#include <winsock2.h>
+#include <windows.h>
+#include <unicorn/unicorn.h>
+
+#include <any>
+#include <memory>
+#include <string>
+#include <unordered_map>
+#include <functional>
+
+#include "resource_wrapper.hpp"
+#include "resource_traits/unicorn/unicorn_handle.hpp"
+
+#include "exception.hpp"
+
+#define NKG_CURRENT_SOURCE_FILE() u8".\\navicat-patcher\\i386_emulator.hpp"
+#define NKG_CURRENT_SOURCE_LINE() __LINE__
+
+namespace nkg {
+
+    class i386_emulator {
+    public:
+        class backend_error : public ::nkg::exception {
+        public:
+            using error_code_t = uc_err;
+
+        private:
+            error_code_t m_error_code;
+            std::string m_error_string;
+
+        public:
+            backend_error(std::string_view file, int line, error_code_t unicorn_err, std::string_view message) noexcept :
+                ::nkg::exception(file, line, message), m_error_code(unicorn_err), m_error_string(uc_strerror(unicorn_err)) {}
+
+            [[nodiscard]]
+            virtual bool error_code_exists() const noexcept override {
+                return true;
+            }
+
+            [[nodiscard]]
+            virtual intptr_t error_code() const noexcept override {
+                return m_error_code;
+            }
+
+            [[nodiscard]]
+            virtual const std::string& error_string() const noexcept override {
+                return m_error_string;
+            }
+        };
+
+        using hookcode_cb_t = void(uint32_t address, size_t size);
+        using hookmem_cb_t = void(uc_mem_type type, uint32_t address, size_t size, int32_t value);
+        using eventmem_cb_t = bool(uc_mem_type type, uint32_t address, size_t size, int32_t value);
+
+    private:
+        struct hook_stub_context_t {
+            i386_emulator* self;
+            uc_hook unicorn_hook_handle;
+        };
+
+        resource_wrapper<resource_traits::unicorn::unicorn_handle>    m_unicorn_engine;
+        std::unordered_map<std::string, std::any>                     m_unicorn_user_ctx;
+
+        std::unordered_map<uc_hook, std::unique_ptr<hook_stub_context_t>>    m_unicorn_hook_stub_ctxs;
+        std::unordered_map<uc_hook, std::any>                                m_unicorn_hook_callbacks;
+
+        static void _unicorn_hookcode_cb_stub(uc_engine* uc, uint64_t address, uint32_t size, void* user_data);
+        static void _unicorn_hookmem_cb_stub(uc_engine* uc, uc_mem_type type, uint64_t address, int size, int64_t value, void* user_data);
+        static bool _unicorn_eventmem_cb_stub(uc_engine* uc, uc_mem_type type, uint64_t address, int size, int64_t value, void* user_data);
+
+    public:
+        i386_emulator();
+
+        void reg_read(int regid, void* value);
+
+        void reg_write(int regid, const void* value);
+
+        void mem_map(uint32_t address, size_t size, uint32_t perms);
+
+        void mem_unmap(uint32_t address, size_t size);
+
+        void mem_read(uint32_t address, void* buf, size_t size);
+
+        std::vector<uint8_t> mem_read(uint32_t address, size_t size);
+
+        void mem_write(uint32_t address, const void* buf, size_t size);
+
+        void mem_write(uint32_t address, const std::vector<uint8_t>& buf);
+
+        template<int hook_type, typename callable_t>
+        uc_hook hook_add(callable_t&& hook_callback, uint32_t begin_address = 1, uint32_t end_address = 0) {
+            uc_err err;
+
+            auto hook_stub_ctx = std::make_unique<hook_stub_context_t>();
+            hook_stub_ctx->self = this;
+            hook_stub_ctx->unicorn_hook_handle = 0;
+
+            if constexpr (hook_type == UC_HOOK_CODE) {
+                err = uc_hook_add(m_unicorn_engine.get(), &hook_stub_ctx->unicorn_hook_handle, hook_type, _unicorn_hookcode_cb_stub, hook_stub_ctx.get(), begin_address, end_address);
+                if (err != UC_ERR_OK) {
+                    throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_hook_add failed.");
+                }
+
+                m_unicorn_hook_callbacks.emplace(std::make_pair(hook_stub_ctx->unicorn_hook_handle, std::function<hookcode_cb_t>{ std::forward<callable_t>(hook_callback) }));
+            } else if constexpr ((hook_type & ~UC_HOOK_MEM_VALID) == 0) {
+                err = uc_hook_add(m_unicorn_engine.get(), &hook_stub_ctx->unicorn_hook_handle, hook_type, _unicorn_hookmem_cb_stub, hook_stub_ctx.get(), begin_address, end_address);
+                if (err != UC_ERR_OK) {
+                    throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_hook_add failed.");
+                }
+
+                m_unicorn_hook_callbacks.emplace(std::make_pair(hook_stub_ctx->unicorn_hook_handle, std::function<hookmem_cb_t>{ std::forward<callable_t>(hook_callback) }));
+            } else if constexpr ((hook_type & ~UC_HOOK_MEM_UNMAPPED) == 0) {
+                err = uc_hook_add(m_unicorn_engine.get(), &hook_stub_ctx->unicorn_hook_handle, hook_type, _unicorn_eventmem_cb_stub, hook_stub_ctx.get(), begin_address, end_address);
+                if (err != UC_ERR_OK) {
+                    throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"uc_hook_add failed.");
+                }
+
+                m_unicorn_hook_callbacks.emplace(std::make_pair(hook_stub_ctx->unicorn_hook_handle, std::function<eventmem_cb_t>{ std::forward<callable_t>(hook_callback) }));
+            } else {
+                static_assert(
+                    hook_type == UC_HOOK_CODE ||
+                    (hook_type & ~UC_HOOK_MEM_VALID) == 0 ||
+                    (hook_type & ~UC_HOOK_MEM_UNMAPPED) == 0, "Unsupported hook type.");
+            }
+
+            return m_unicorn_hook_stub_ctxs.emplace(std::make_pair(hook_stub_ctx->unicorn_hook_handle, std::move(hook_stub_ctx))).first->first;
+        }
+
+        void hook_del(uc_hook hook_handle);
+
+        void create_gdt_entry(uint32_t gdt_entry_address, uint32_t base, uint32_t limit, uint8_t access_byte, uint8_t flags);
+
+        void emu_start(uint32_t begin_address, uint32_t end_address = 0, uint64_t timeout = 0, size_t count = 0);
+
+        void emu_stop();
+
+        template<typename val_t>
+        void context_set(const std::string& name, val_t&& value) {
+            m_unicorn_user_ctx[name] = std::forward<val_t>(value);
+        }
+
+        template<typename val_t>
+        val_t context_get(const std::string& name) {
+            return std::any_cast<val_t>(m_unicorn_user_ctx[name]);
+        }
+    };
+
+}
+
+#undef NKG_CURRENT_SOURCE_LINE
+#undef NKG_CURRENT_SOURCE_FILE

navicat-patcher/image_interpreter.cpp

@@ -0,0 +1,302 @@
+#include "image_interpreter.hpp"
+#include <fmt/format.h>
+#include "exceptions/index_exception.hpp"
+
+#define NKG_CURRENT_SOURCE_FILE() u8".\\navicat-patcher\\image_interpreter.cpp"
+#define NKG_CURRENT_SOURCE_LINE() __LINE__
+
+namespace nkg {
+
+    image_interpreter::image_interpreter() :
+        m_dos_header(nullptr),
+        m_nt_headers(nullptr),
+        m_section_header_table(nullptr),
+        m_vs_fixed_file_info(nullptr) {}
+
+    [[nodiscard]]
+    image_interpreter image_interpreter::parse(void* image_base, bool parse_relocation) {
+        image_interpreter new_image;
+
+        new_image.m_dos_header = reinterpret_cast<PIMAGE_DOS_HEADER>(image_base);
+        if (new_image.m_dos_header->e_magic != IMAGE_DOS_SIGNATURE) {
+            throw parse_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Invalid image: DOS signature check failure")
+                .push_hint(u8"Are you sure you DO provide a valid WinPE file?");
+        }
+
+        new_image.m_nt_headers = reinterpret_cast<PIMAGE_NT_HEADERS>(reinterpret_cast<uint8_t*>(image_base) + new_image.m_dos_header->e_lfanew);
+        if (new_image.m_nt_headers->Signature != IMAGE_NT_SIGNATURE) {
+            throw parse_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Invalid image: NT signature check failure")
+                .push_hint(u8"Are you sure you DO provide a valid WinPE file?");
+        }
+
+#if defined(_M_AMD64)
+        if (new_image.m_nt_headers->OptionalHeader.Magic != IMAGE_NT_OPTIONAL_HDR64_MAGIC) {
+            throw parse_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Invalid image: optional header magic check failure")
+                .push_hint(u8"Are you sure you DO provide a valid 64-bits WinPE file?");
+        }
+        if (new_image.m_nt_headers->FileHeader.Machine != IMAGE_FILE_MACHINE_AMD64) {
+            throw parse_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Invalid image: machine check failure")
+                .push_hint(u8"Are you sure you DO provide a valid 64-bits WinPE file?");
+        }
+#elif defined(_M_IX86)
+        if (new_image.m_nt_headers->OptionalHeader.Magic != IMAGE_NT_OPTIONAL_HDR32_MAGIC) {
+            throw parse_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Invalid Image. (Optional header magic check failure)")
+                .push_hint(u8"Are you sure you DO provide a valid 32-bits WinPE file?");
+        }
+        if (new_image.m_nt_headers->FileHeader.Machine != IMAGE_FILE_MACHINE_I386) {
+            throw parse_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Invalid Image. (Machine check failure)")
+                .push_hint(u8"Are you sure you DO provide a valid 32-bits WinPE file?");
+        }
+#else
+#error "image_interpreter.cpp: unsupported architecture."
+#endif
+
+        new_image.m_section_header_table = 
+            reinterpret_cast<PIMAGE_SECTION_HEADER>(reinterpret_cast<char*>(&new_image.m_nt_headers->OptionalHeader) + new_image.m_nt_headers->FileHeader.SizeOfOptionalHeader);
+
+        for (WORD i = 0; i < new_image.m_nt_headers->FileHeader.NumberOfSections; ++i) {
+            auto section_name = make_section_name(new_image.m_section_header_table[i].Name);
+
+            if (new_image.m_section_header_name_lookup_table.find(section_name) == new_image.m_section_header_name_lookup_table.end()) {
+                new_image.m_section_header_name_lookup_table[section_name] = &new_image.m_section_header_table[i];
+            }
+
+            new_image.m_section_header_rva_lookup_table[new_image.m_section_header_table[i].VirtualAddress] = &new_image.m_section_header_table[i];
+            new_image.m_section_header_fo_lookup_table[new_image.m_section_header_table[i].PointerToRawData] = &new_image.m_section_header_table[i];
+        }
+
+        if (parse_relocation && new_image.m_nt_headers->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC].VirtualAddress != 0) {
+            auto relocation_table = 
+                new_image.convert_rva_to_ptr<PIMAGE_BASE_RELOCATION>(new_image.m_nt_headers->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_BASERELOC].VirtualAddress);
+
+            while (relocation_table->VirtualAddress != 0) {
+                rva_t rva = relocation_table->VirtualAddress;
+                auto reloc_items = reinterpret_cast<WORD*>(relocation_table + 1);
+                auto reloc_items_count = (relocation_table->SizeOfBlock - sizeof(IMAGE_BASE_RELOCATION)) / sizeof(WORD);
+
+                for (DWORD i = 0; i < reloc_items_count; ++i) {
+                    auto reloc_type = reloc_items[i] >> 12;
+
+                    switch (reloc_type) {
+                        case IMAGE_REL_BASED_ABSOLUTE:
+                            break;
+                        case IMAGE_REL_BASED_HIGH:
+                        case IMAGE_REL_BASED_LOW:
+                        case IMAGE_REL_BASED_HIGHADJ:
+                            new_image.m_relocation_rva_lookup_table[rva + (reloc_items[i] & 0x0fff)] = 2;
+                            break;
+                        case IMAGE_REL_BASED_HIGHLOW:
+                            new_image.m_relocation_rva_lookup_table[rva + (reloc_items[i] & 0x0fff)] = 4;
+                            break;
+#if defined(IMAGE_REL_BASED_DIR64)
+                        case IMAGE_REL_BASED_DIR64:
+                            new_image.m_relocation_rva_lookup_table[rva + (reloc_items[i] & 0x0fff)] = 8;
+                            break;
+#endif
+                        default:
+                            break;
+                    }
+                }
+
+                relocation_table = reinterpret_cast<PIMAGE_BASE_RELOCATION>(&reloc_items[reloc_items_count]);
+            }
+        }
+
+        if (new_image.m_nt_headers->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress) {
+            rva_t import_rva = new_image.m_nt_headers->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT].VirtualAddress;
+
+            auto import_descriptors = new_image.convert_rva_to_ptr<PIMAGE_IMPORT_DESCRIPTOR>(import_rva);
+            for (size_t i = 0; import_descriptors[i].OriginalFirstThunk != 0; ++i) {
+                auto import_lookup_table = new_image.convert_rva_to_ptr<PIMAGE_THUNK_DATA>(import_descriptors[i].OriginalFirstThunk);
+                rva_t import_address_table_rva = import_descriptors[i].FirstThunk;
+
+                for (size_t j = 0; import_lookup_table[j].u1.Ordinal != 0; ++j) {
+                    new_image.m_iat_rva_lookup_table[import_address_table_rva + j * sizeof(IMAGE_THUNK_DATA)] = std::make_pair(&import_descriptors[i], &import_lookup_table[j]);
+                }
+            }
+        }
+
+        if (new_image.m_nt_headers->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress) {
+            rva_t resource_rva = new_image.m_nt_headers->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_RESOURCE].VirtualAddress;
+
+            auto res_type_directory = new_image.convert_rva_to_ptr<PIMAGE_RESOURCE_DIRECTORY>(resource_rva);
+            auto res_type_name_entries = reinterpret_cast<PIMAGE_RESOURCE_DIRECTORY_ENTRY>(res_type_directory + 1);
+            auto res_type_id_entries = res_type_name_entries + res_type_directory->NumberOfNamedEntries;
+
+            for (WORD i = 0; i < res_type_directory->NumberOfIdEntries && new_image.m_vs_fixed_file_info == nullptr; ++i) {
+                if (res_type_id_entries[i].Id == reinterpret_cast<uintptr_t>(RT_VERSION) && res_type_id_entries[i].DataIsDirectory) {
+                    auto res_name_directory = new_image.convert_rva_to_ptr<PIMAGE_RESOURCE_DIRECTORY>(resource_rva + res_type_id_entries[i].OffsetToDirectory);
+                    auto res_name_name_entries = reinterpret_cast<PIMAGE_RESOURCE_DIRECTORY_ENTRY>(res_name_directory + 1);
+                    auto res_name_id_entries = res_name_name_entries + res_name_directory->NumberOfNamedEntries;
+
+                    for (WORD j = 0; j < res_name_directory->NumberOfIdEntries && new_image.m_vs_fixed_file_info == nullptr; ++j) {
+                        if (res_name_id_entries[j].Id == VS_VERSION_INFO && res_name_id_entries[j].DataIsDirectory) {
+                            auto res_lang_directory = new_image.convert_rva_to_ptr<PIMAGE_RESOURCE_DIRECTORY>(resource_rva + res_name_id_entries[j].OffsetToDirectory);
+                            auto res_lang_name_entries = reinterpret_cast<PIMAGE_RESOURCE_DIRECTORY_ENTRY>(res_lang_directory + 1);
+                            auto res_lang_id_entries = res_lang_name_entries + res_lang_directory->NumberOfNamedEntries;
+
+                            for (WORD k = 0; k < res_lang_directory->NumberOfIdEntries && new_image.m_vs_fixed_file_info == nullptr; ++k) {
+                                constexpr WORD neutral_lang_id = MAKELANGID(LANG_NEUTRAL, SUBLANG_NEUTRAL);
+                                constexpr WORD english_lang_id = MAKELANGID(LANG_ENGLISH, SUBLANG_ENGLISH_US);
+
+                                if ((res_lang_id_entries[k].Id == neutral_lang_id || res_lang_id_entries[k].Id == english_lang_id) && !res_lang_id_entries[k].DataIsDirectory) {
+                                    auto res_data_entry = new_image.convert_rva_to_ptr<PIMAGE_RESOURCE_DATA_ENTRY>(resource_rva + res_lang_id_entries[k].OffsetToData);
+
+                                    auto vs_version_info = new_image.convert_rva_to_ptr<PBYTE>(res_data_entry->OffsetToData);
+                                    auto vs_version_info_key = reinterpret_cast<PWSTR>(vs_version_info + 6); // vs_version_info->szKey
+                                    if (_wcsicmp(vs_version_info_key, L"VS_VERSION_INFO") == 0) {
+                                        auto p = reinterpret_cast<PBYTE>(vs_version_info_key + _countof(L"VS_VERSION_INFO"));
+                                        while (new_image.convert_ptr_to_rva(p) % sizeof(DWORD)) {
+                                            ++p;
+                                        }
+
+                                        auto vs_fixed_file_info = reinterpret_cast<VS_FIXEDFILEINFO*>(p);
+
+                                        if (vs_fixed_file_info->dwSignature == VS_FFI_SIGNATURE) {
+                                            new_image.m_vs_fixed_file_info = vs_fixed_file_info;
+                                        }
+                                    }
+                                }
+                            }
+                        }
+                    }
+                }
+            }
+        }
+
+        return new_image;
+    }
+
+    [[nodiscard]]
+    PIMAGE_DOS_HEADER image_interpreter::image_dos_header() const noexcept {
+        return m_dos_header;
+    }
+
+    [[nodiscard]]
+    PIMAGE_NT_HEADERS image_interpreter::image_nt_headers() const noexcept {
+        return m_nt_headers;
+    }
+
+    [[nodiscard]]
+    PIMAGE_SECTION_HEADER image_interpreter::image_section_header_table() const noexcept {
+        return m_section_header_table;
+    }
+
+    [[nodiscard]]
+    PIMAGE_SECTION_HEADER image_interpreter::image_section_header(size_t n) const {
+        if (n < m_nt_headers->FileHeader.NumberOfSections) {
+            return m_section_header_table + n;
+        } else {
+            throw exceptions::index_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Section index is out of range.");
+        }
+    }
+
+    [[nodiscard]]
+    PIMAGE_SECTION_HEADER image_interpreter::image_section_header(std::string_view section_name) const {
+        if (section_name.length() <= 8) {
+            std::array<BYTE, 8> name{};
+
+            std::copy(section_name.begin(), section_name.end(), name.begin());
+
+            auto it = m_section_header_name_lookup_table.find(name);
+            if (it != m_section_header_name_lookup_table.end()) {
+                return it->second;
+            } else {
+                throw exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), fmt::format(u8"Target section header is not found: section_name = {}", section_name));
+            }
+        } else {
+            throw exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Target section header is not found: section_name is too long.");
+        }
+    }
+
+    [[nodiscard]]
+    PIMAGE_SECTION_HEADER image_interpreter::image_section_header_from_rva(rva_t rva) const {
+        auto it = m_section_header_rva_lookup_table.upper_bound(rva);
+        if (it != m_section_header_rva_lookup_table.begin()) {
+            --it;
+        }
+
+        rva_t section_rva_begin = it->second->VirtualAddress;
+        rva_t section_rva_end = section_rva_begin + it->second->Misc.VirtualSize;
+
+        if (section_rva_begin <= rva && rva < section_rva_end) {
+            return it->second;
+        } else {
+            throw exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Target section header is not found.")
+                .push_hint(fmt::format("rva = 0x{:x}", rva));
+        }
+    }
+
+    [[nodiscard]]
+    PIMAGE_SECTION_HEADER image_interpreter::image_section_header_from_va(va_t va) const {
+        return image_section_header_from_rva(static_cast<rva_t>(va - m_nt_headers->OptionalHeader.ImageBase));
+    }
+
+    [[nodiscard]]
+    PIMAGE_SECTION_HEADER image_interpreter::image_section_header_from_fo(fo_t file_offset) const {
+        auto it = m_section_header_fo_lookup_table.upper_bound(file_offset);
+        if (it != m_section_header_fo_lookup_table.begin()) {
+            --it;
+        }
+
+        uintptr_t section_fo_begin = it->second->PointerToRawData;
+        uintptr_t section_fo_end = section_fo_begin + it->second->SizeOfRawData;
+
+        if (section_fo_begin <= file_offset && file_offset < section_fo_end) {
+            return it->second;
+        } else {
+            throw exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Target section header is not found.")
+                .push_hint(fmt::format(u8"file_offset = 0x{:x}", file_offset));
+        }
+    }
+
+    [[nodiscard]]
+    image_interpreter::va_t image_interpreter::convert_rva_to_va(rva_t rva) const noexcept {
+        return rva + m_nt_headers->OptionalHeader.ImageBase;
+    }
+
+    [[nodiscard]]
+    image_interpreter::fo_t image_interpreter::convert_rva_to_fo(rva_t rva) const {
+        auto section_header = image_section_header_from_rva(rva);
+        return section_header->PointerToRawData + (rva - static_cast<uintptr_t>(section_header->VirtualAddress));
+    }
+
+    [[nodiscard]]
+    image_interpreter::rva_t image_interpreter::convert_fo_to_rva(fo_t file_offset) const {
+        auto section_header = image_section_header_from_fo(file_offset);
+        return section_header->VirtualAddress + (file_offset - section_header->PointerToRawData);
+    }
+
+    [[nodiscard]]
+    image_interpreter::va_t image_interpreter::convert_fo_to_va(fo_t file_offset) const {
+        return convert_fo_to_rva(file_offset) + m_nt_headers->OptionalHeader.ImageBase;
+    }
+
+    [[nodiscard]]
+    image_interpreter::rva_t image_interpreter::convert_va_to_rva(va_t va) const noexcept {
+        return va - m_nt_headers->OptionalHeader.ImageBase;
+    }
+
+    [[nodiscard]]
+    image_interpreter::fo_t image_interpreter::convert_va_to_fo(va_t va) const {
+        return image_section_header_from_va(va)->PointerToRawData;
+    }
+
+    [[nodiscard]]
+    size_t image_interpreter::number_of_sections() const noexcept {
+        return m_nt_headers->FileHeader.NumberOfSections;
+    }
+
+    PIMAGE_IMPORT_DESCRIPTOR image_interpreter::import_descriptor_from_rva(rva_t rva) {
+        auto it = m_iat_rva_lookup_table.find(rva);
+        return it != m_iat_rva_lookup_table.end() ? it->second.first : nullptr;
+    }
+
+    PIMAGE_THUNK_DATA image_interpreter::import_lookup_entry_from_rva(rva_t rva) {
+        auto it = m_iat_rva_lookup_table.find(rva);
+        return it != m_iat_rva_lookup_table.end() ? it->second.second : nullptr;
+    }
+}
+
+#undef NKG_CURRENT_SOURCE_LINE
+#undef NKG_CURRENT_SOURCE_FILE

navicat-patcher/image_interpreter.hpp

@@ -0,0 +1,202 @@
+#pragma once
+#include <type_traits>
+#include <array>
+#include <map>
+#include <windows.h>
+
+#include "exception.hpp"
+
+namespace nkg {
+
+    class image_interpreter {
+    public:
+        using va_t = uintptr_t;
+        using rva_t = uintptr_t;
+        using fo_t = uintptr_t;
+
+    private:
+        PIMAGE_DOS_HEADER m_dos_header;
+        PIMAGE_NT_HEADERS m_nt_headers;
+        PIMAGE_SECTION_HEADER m_section_header_table;
+
+        std::map<std::array<BYTE, 8>, PIMAGE_SECTION_HEADER> m_section_header_name_lookup_table;
+        std::map<rva_t, PIMAGE_SECTION_HEADER> m_section_header_rva_lookup_table;
+        std::map<fo_t, PIMAGE_SECTION_HEADER> m_section_header_fo_lookup_table;
+
+        std::map<rva_t, size_t> m_relocation_rva_lookup_table;
+
+        std::map<rva_t, std::pair<PIMAGE_IMPORT_DESCRIPTOR, PIMAGE_THUNK_DATA>> m_iat_rva_lookup_table;
+
+        VS_FIXEDFILEINFO* m_vs_fixed_file_info;
+
+        image_interpreter();
+
+        static std::array<BYTE, 8> make_section_name(const BYTE (&name)[8]) {
+            std::array<BYTE, 8> retval;
+            std::copy(std::begin(name), std::end(name), retval.begin());
+            return retval;
+        }
+
+    public:
+        class parse_error : public ::nkg::exception    {
+        public:
+            parse_error(std::string_view file, int line, std::string_view message) noexcept :
+                ::nkg::exception(file, line, message) {}
+        };
+
+        [[nodiscard]]
+        static image_interpreter parse(void* image_base, bool parse_relocation);
+
+        template<typename ptr_t = void*>
+        [[nodiscard]]
+        ptr_t image_base() const noexcept {
+            static_assert(std::is_pointer_v<ptr_t>);
+            return reinterpret_cast<ptr_t>(m_dos_header);
+        }
+
+        [[nodiscard]]
+        PIMAGE_DOS_HEADER image_dos_header() const noexcept;
+
+        [[nodiscard]]
+        PIMAGE_NT_HEADERS image_nt_headers() const noexcept;
+
+        [[nodiscard]]
+        PIMAGE_SECTION_HEADER image_section_header_table() const noexcept;
+
+        [[nodiscard]]
+        PIMAGE_SECTION_HEADER image_section_header(size_t n) const;
+
+        [[nodiscard]]
+        PIMAGE_SECTION_HEADER image_section_header(std::string_view name) const;
+
+        [[nodiscard]]
+        PIMAGE_SECTION_HEADER image_section_header_from_rva(rva_t rva) const;
+
+        [[nodiscard]]
+        PIMAGE_SECTION_HEADER image_section_header_from_va(va_t va) const;
+
+        [[nodiscard]]
+        PIMAGE_SECTION_HEADER image_section_header_from_fo(fo_t file_offset) const;
+
+        [[nodiscard]]
+        va_t convert_rva_to_va(rva_t rva) const noexcept;
+
+        [[nodiscard]]
+        fo_t convert_rva_to_fo(rva_t rva) const;
+
+        template<typename ptr_t = void*>
+        [[nodiscard]]
+        ptr_t convert_rva_to_ptr(rva_t rva) const {
+            static_assert(std::is_pointer_v<ptr_t>);
+            return convert_fo_to_ptr<ptr_t>(convert_rva_to_fo(rva));
+        }
+
+        [[nodiscard]]
+        rva_t convert_fo_to_rva(fo_t file_offset) const;
+
+        [[nodiscard]]
+        va_t convert_fo_to_va(fo_t file_offset) const;
+
+        template<typename ptr_t>
+        [[nodiscard]]
+        ptr_t convert_fo_to_ptr(fo_t file_offset) const noexcept {
+            static_assert(std::is_pointer_v<ptr_t>);
+            return reinterpret_cast<ptr_t>(image_base<char*>() + file_offset);
+        }
+
+        [[nodiscard]]
+        rva_t convert_va_to_rva(va_t va) const noexcept;
+
+        [[nodiscard]]
+        fo_t convert_va_to_fo(va_t va) const;
+
+        template<typename ptr_t>
+        [[nodiscard]]
+        ptr_t convert_va_to_ptr(va_t va) const noexcept {
+            return convert_rva_to_ptr<ptr_t>(convert_va_to_rva(va));
+        }
+
+        template<typename ptr_t>
+        [[nodiscard]]
+        fo_t convert_ptr_to_fo(ptr_t ptr) const noexcept {
+            static_assert(std::is_pointer_v<ptr_t>);
+            return reinterpret_cast<const volatile char*>(ptr) - image_base<const volatile char*>();
+        }
+
+        template<typename ptr_t>
+        [[nodiscard]]
+        rva_t convert_ptr_to_rva(ptr_t ptr) const {
+            return convert_fo_to_rva(convert_ptr_to_fo(ptr));
+        }
+
+        template<typename ptr_t>
+        [[nodiscard]]
+        va_t convert_ptr_to_va(ptr_t ptr) const {
+            return convert_fo_to_va(convert_ptr_to_fo(ptr));
+        }
+
+        [[nodiscard]]
+        size_t number_of_sections() const noexcept;
+
+        template<typename ptr_t = void*>
+        [[nodiscard]]
+        ptr_t image_section_view(size_t n, size_t offset = 0) const {
+            static_assert(std::is_pointer_v<ptr_t>);
+            return reinterpret_cast<ptr_t>(image_base<char*>() + image_section_header(n)->PointerToRawData + offset);
+        }
+
+        template<typename ptr_t = void*>
+        [[nodiscard]]
+        ptr_t image_section_view(std::string_view section_name, size_t offset = 0) const {
+            static_assert(std::is_pointer_v<ptr_t>);
+            return reinterpret_cast<ptr_t>(image_base<char*>() + image_section_header(section_name)->PointerToRawData + offset);
+        }
+
+        template<typename ptr_t, typename pred_func_t>
+        [[nodiscard]]
+        ptr_t search_section(size_t n, pred_func_t&& pred_func) const {
+            static_assert(std::is_pointer_v<ptr_t>);
+
+            auto section_header = image_section_header(n);
+
+            auto begin = image_base<const uint8_t*>() + section_header->PointerToRawData;
+            auto end = begin + section_header->Misc.VirtualSize;
+
+            for (; begin < end; ++begin) {
+                if (pred_func(begin, end - begin)) {
+                    return reinterpret_cast<ptr_t>(const_cast<uint8_t*>(begin));
+                }
+            }
+
+            return nullptr;
+        }
+
+        template<typename ptr_t, typename pred_func_t>
+        [[nodiscard]]
+        ptr_t search_section(std::string_view section_name, pred_func_t&& pred_func) const {
+            static_assert(std::is_pointer_v<ptr_t>);
+
+            auto section_header = image_section_header(section_name);
+
+            auto begin = image_base<const uint8_t*>() + section_header->PointerToRawData;
+            auto end = begin + section_header->Misc.VirtualSize;
+
+            for (; begin < end; ++begin) {
+                if (pred_func(begin, end - begin)) {
+                    return reinterpret_cast<ptr_t>(const_cast<uint8_t*>(begin));
+                }
+            }
+
+            return nullptr;
+        }
+
+        PIMAGE_IMPORT_DESCRIPTOR import_descriptor_from_rva(rva_t rva);
+
+        PIMAGE_THUNK_DATA import_lookup_entry_from_rva(rva_t rva);
+
+        auto& relocation_distribute() {
+            return m_relocation_rva_lookup_table;
+        }
+    };
+
+}

navicat-patcher/keystone_assembler.cpp

@@ -0,0 +1,38 @@
+#include "keystone_assembler.hpp"
+
+#define NKG_CURRENT_SOURCE_FILE() u8".\\navicat-patcher\\keystone_assembler.cpp"
+#define NKG_CURRENT_SOURCE_LINE() __LINE__
+
+namespace nkg {
+
+    keystone_assembler::keystone_assembler(ks_arch architecture, ks_mode mode) {
+        auto err = ks_open(architecture, mode, m_keystone_engine.unsafe_addressof());
+        if (err != KS_ERR_OK) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"ks_open failed.");
+        }
+    }
+
+    void keystone_assembler::option(ks_opt_type option_type, size_t option_value) {
+        auto err = ks_option(m_keystone_engine.get(), option_type, option_value);
+        if (err != KS_ERR_OK) {
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"ks_option failed.");
+        }
+    }
+
+    std::vector<uint8_t> keystone_assembler::assemble(std::string_view asm_string, uint64_t asm_address) const {
+        resource_wrapper machine_code{ resource_traits::keystone::keystone_alloc{} };
+        size_t machine_code_size = 0;
+        size_t stat_count = 0;
+
+        if (ks_asm(m_keystone_engine.get(), asm_string.data(), asm_address, machine_code.unsafe_addressof(), &machine_code_size, &stat_count) < 0) {
+            auto err = ks_errno(m_keystone_engine.get());
+            throw backend_error(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), err, u8"ks_option failed.");
+        }
+
+        return std::vector<uint8_t>(machine_code.get(), machine_code.get() + machine_code_size);
+    }
+
+}
+
+#undef NKG_CURRENT_SOURCE_LINE
+#undef NKG_CURRENT_SOURCE_FILE

navicat-patcher/keystone_assembler.hpp

@@ -0,0 +1,54 @@
+#pragma once
+#include <string>
+#include <vector>
+#include <keystone/keystone.h>
+
+#include "resource_wrapper.hpp"
+#include "resource_traits/keystone/keystone_handle.hpp"
+
+#include "exception.hpp"
+
+namespace nkg {
+
+    class keystone_assembler {
+    public:
+        class backend_error : public ::nkg::exception {
+        public:
+            using error_code_t = ks_err;
+
+        private:
+            error_code_t m_error_code;
+            std::string m_error_string;
+
+        public:
+            backend_error(std::string_view file, int line, error_code_t keystone_err, std::string_view message) noexcept :
+                ::nkg::exception(file, line, message), m_error_code(keystone_err), m_error_string(ks_strerror(keystone_err)) {}
+
+            [[nodiscard]]
+            virtual bool error_code_exists() const noexcept override {
+                return true;
+            }
+
+            [[nodiscard]]
+            virtual intptr_t error_code() const noexcept override {
+                return m_error_code;
+            }
+
+            [[nodiscard]]
+            virtual const std::string& error_string() const noexcept override {
+                return m_error_string;
+            }
+        };
+
+    private:
+        resource_wrapper<resource_traits::keystone::keystone_handle> m_keystone_engine;
+
+    public:
+        keystone_assembler(ks_arch architecture, ks_mode mode);
+
+        void option(ks_opt_type option_type, size_t option_value);
+
+        std::vector<uint8_t> assemble(std::string_view asm_string, uint64_t asm_address = 0) const;
+    };
+
+}

navicat-patcher/navicat-patcher.vcxproj

@@ -0,0 +1,210 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <VCProjectVersion>16.0</VCProjectVersion>
+    <Keyword>Win32Proj</Keyword>
+    <ProjectGuid>{1b6920eb-e6ed-465f-9600-b5f816752375}</ProjectGuid>
+    <RootNamespace>navicatpatcher</RootNamespace>
+    <WindowsTargetPlatformVersion>10.0</WindowsTargetPlatformVersion>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" Label="Configuration">
+    <ConfigurationType>Application</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <PlatformToolset>v143</PlatformToolset>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="Shared">
+    <Import Project="..\common\common.vcxitems" Label="Shared" />
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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+  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <LinkIncremental>true</LinkIncremental>
+    <OutDir>$(SolutionDir)\bin\$(PlatformTarget)-$(Configuration)\</OutDir>
+    <IntDir>$(SolutionDir)\obj\$(PlatformTarget)-$(Configuration)\$(ProjectName)\</IntDir>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <LinkIncremental>false</LinkIncremental>
+    <OutDir>$(SolutionDir)\bin\$(PlatformTarget)-$(Configuration)\</OutDir>
+    <IntDir>$(SolutionDir)\obj\$(PlatformTarget)-$(Configuration)\$(ProjectName)\</IntDir>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <LinkIncremental>true</LinkIncremental>
+    <OutDir>$(SolutionDir)\bin\$(PlatformTarget)-$(Configuration)\</OutDir>
+    <IntDir>$(SolutionDir)\obj\$(PlatformTarget)-$(Configuration)\$(ProjectName)\</IntDir>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <LinkIncremental>false</LinkIncremental>
+    <OutDir>$(SolutionDir)\bin\$(PlatformTarget)-$(Configuration)\</OutDir>
+    <IntDir>$(SolutionDir)\obj\$(PlatformTarget)-$(Configuration)\$(ProjectName)\</IntDir>
+  </PropertyGroup>
+  <PropertyGroup Label="Vcpkg" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <VcpkgUseStatic>true</VcpkgUseStatic>
+  </PropertyGroup>
+  <PropertyGroup Label="Vcpkg" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <VcpkgUseStatic>true</VcpkgUseStatic>
+  </PropertyGroup>
+  <PropertyGroup Label="Vcpkg" Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <VcpkgUseStatic>true</VcpkgUseStatic>
+  </PropertyGroup>
+  <PropertyGroup Label="Vcpkg" Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <VcpkgUseStatic>true</VcpkgUseStatic>
+  </PropertyGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <WarningLevel>Level3</WarningLevel>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+      <LanguageStandard>stdcpp17</LanguageStandard>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
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+    <ClCompile>
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+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+      <LanguageStandard>stdcpp17</LanguageStandard>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
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+      <LanguageStandard>stdcpp17</LanguageStandard>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+    </ClCompile>
+    <Link>
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+      <SDLCheck>true</SDLCheck>
+      <PreprocessorDefinitions>NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <ConformanceMode>true</ConformanceMode>
+      <LanguageStandard>stdcpp17</LanguageStandard>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+    </ClCompile>
+    <Link>
+      <SubSystem>Console</SubSystem>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+      <GenerateDebugInformation>true</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+  <ItemGroup>
+    <ClCompile Include="i386_emulator.cpp">
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|x64'">true</ExcludedFromBuild>
+    </ClCompile>
+    <ClCompile Include="image_interpreter.cpp" />
+    <ClCompile Include="keystone_assembler.cpp" />
+    <ClCompile Include="patch_solution_since_16.0.7.0.amd64.cpp">
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
+    </ClCompile>
+    <ClCompile Include="amd64_emulator.cpp">
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
+    </ClCompile>
+    <ClCompile Include="patch_solution_since_16.0.7.0.generic.cpp" />
+    <ClCompile Include="patch_solution_since_16.0.7.0.i386.cpp">
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|x64'">true</ExcludedFromBuild>
+    </ClCompile>
+    <ClCompile Include="wmain.cpp" />
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="i386_emulator.hpp">
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|x64'">true</ExcludedFromBuild>
+    </ClInclude>
+    <ClInclude Include="keystone_assembler.hpp" />
+    <ClInclude Include="patch_solution.hpp" />
+    <ClInclude Include="image_interpreter.hpp" />
+    <ClInclude Include="patch_solution_since.hpp" />
+    <ClInclude Include="patch_solution_since_16.0.7.0.hpp" />
+    <ClInclude Include="amd64_emulator.hpp">
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+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>

navicat-patcher/navicat-patcher.vcxproj.filters

@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Filter Include="源文件">
+      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
+      <Extensions>cpp;c;cc;cxx;c++;cppm;ixx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
+    </Filter>
+    <Filter Include="头文件">
+      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
+      <Extensions>h;hh;hpp;hxx;h++;hm;inl;inc;ipp;xsd</Extensions>
+    </Filter>
+    <Filter Include="资源文件">
+      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
+      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
+    </Filter>
+  </ItemGroup>
+  <ItemGroup>
+    <ClCompile Include="wmain.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+    <ClCompile Include="image_interpreter.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+    <ClCompile Include="patch_solution_since_16.0.7.0.amd64.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+    <ClCompile Include="amd64_emulator.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+    <ClCompile Include="keystone_assembler.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+    <ClCompile Include="patch_solution_since_16.0.7.0.generic.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+    <ClCompile Include="i386_emulator.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+    <ClCompile Include="patch_solution_since_16.0.7.0.i386.cpp">
+      <Filter>源文件</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="patch_solution.hpp">
+      <Filter>头文件</Filter>
+    </ClInclude>
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+      <Filter>头文件</Filter>
+    </ClInclude>
+    <ClInclude Include="patch_solution_since.hpp">
+      <Filter>头文件</Filter>
+    </ClInclude>
+    <ClInclude Include="image_interpreter.hpp">
+      <Filter>头文件</Filter>
+    </ClInclude>
+    <ClInclude Include="amd64_emulator.hpp">
+      <Filter>头文件</Filter>
+    </ClInclude>
+    <ClInclude Include="keystone_assembler.hpp">
+      <Filter>头文件</Filter>
+    </ClInclude>
+    <ClInclude Include="i386_emulator.hpp">
+      <Filter>头文件</Filter>
+    </ClInclude>
+  </ItemGroup>
+</Project>

navicat-patcher/navicat-patcher.vcxproj.user

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="Current" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <ShowAllFiles>true</ShowAllFiles>
+  </PropertyGroup>
+</Project>

navicat-patcher/patch_solution.hpp

@@ -0,0 +1,19 @@
+#pragma once
+#include "rsa_cipher.hpp"
+
+namespace nkg {
+
+    class patch_solution {
+    public:
+        [[nodiscard]]
+        virtual bool find_patch() = 0;
+
+        [[nodiscard]]
+        virtual bool check_rsa_privkey(const rsa_cipher& cipher) = 0;
+
+        virtual void make_patch(const rsa_cipher& cipher) = 0;
+
+        virtual ~patch_solution() = default;
+    };
+
+}

navicat-patcher/patch_solution_since.hpp

@@ -0,0 +1,9 @@
+#pragma once
+#include "patch_solution.hpp"
+
+namespace nkg {
+
+    template<int major_ver0, int major_ver1, int minor_ver0, int minor_ver1>
+    class patch_solution_since;
+
+}

navicat-patcher/patch_solution_since_16.0.7.0.amd64.cpp

@@ -0,0 +1,591 @@
+#define _CRT_SECURE_NO_WARNINGS
+#include "amd64_emulator.hpp"
+#include "keystone_assembler.hpp"
+#include "patch_solution_since_16.0.7.0.hpp"
+#include <algorithm>
+#include <fmt/format.h>
+
+namespace nkg {
+
+    patch_solution_since<16, 0, 7, 0>::patch_solution_since(image_interpreter& libcc_interpreter) :
+        m_libcc_interpreter(libcc_interpreter),
+        m_va_CSRegistrationInfoFetcher_WIN_vtable(0),
+        m_va_CSRegistrationInfoFetcher_WIN_GenerateRegistrationKey(0),
+        m_va_iat_entry_malloc(0) {}
+
+    bool patch_solution_since<16, 0, 7, 0>::find_patch() {
+        auto CSRegistrationInfoFetcher_WIN_type_descriptor_name = 
+            m_libcc_interpreter.search_section<const uint8_t*>(
+                ".data", 
+                [](const uint8_t* p, size_t s) {
+                    if (s < sizeof(".?AVCSRegistrationInfoFetcher_WIN@@")) {
+                        return false;
+                    }
+
+                    return strcmp(reinterpret_cast<const char*>(p), ".?AVCSRegistrationInfoFetcher_WIN@@") == 0;
+                }
+            );
+
+        if (CSRegistrationInfoFetcher_WIN_type_descriptor_name == nullptr) {
+            wprintf_s(L"[-] patch_solution_since<16, 0, 7, 0>: RTTI info for CSRegistrationInfoFetcher_WIN is not found. (failure label 0)\n");
+            wprintf_s(L"[-] patch_solution_since<16, 0, 7, 0>: This patch solution will be suppressed.\n");
+            return false;
+        }
+
+        auto CSRegistrationInfoFetcher_WIN_rtti_type_descriptor = CSRegistrationInfoFetcher_WIN_type_descriptor_name - 0x10;
+
+        auto CSRegistrationInfoFetcher_WIN_rtti_type_descriptor_rva = m_libcc_interpreter.convert_ptr_to_rva(CSRegistrationInfoFetcher_WIN_rtti_type_descriptor);
+
+        auto CSRegistrationInfoFetcher_WIN_rtti_complete_object_locator_pTypeDescriptor =
+            m_libcc_interpreter.search_section<const uint8_t*>(
+                ".rdata", 
+                [this, CSRegistrationInfoFetcher_WIN_rtti_type_descriptor_rva](const uint8_t* p, size_t s) {
+                    if (reinterpret_cast<uintptr_t>(p) % sizeof(uint32_t) != 0) {
+                        return false;
+                    }
+
+                    if (s < sizeof(uint32_t)) {
+                        return false;
+                    }
+
+                    if (*reinterpret_cast<const uint32_t*>(p) != CSRegistrationInfoFetcher_WIN_rtti_type_descriptor_rva) {
+                        return false;
+                    }
+
+                    if (s < sizeof(uint32_t) * 2) {
+                        return false;
+                    }
+
+                    auto maybe_CSRegistrationInfoFetcher_WIN_rtti_class_hierarchy_descriptor_rva = reinterpret_cast<const uint32_t*>(p)[1];
+
+                    try {
+                        return memcmp(m_libcc_interpreter.image_section_header_from_rva(maybe_CSRegistrationInfoFetcher_WIN_rtti_class_hierarchy_descriptor_rva)->Name, ".rdata\x00\x00", 8) == 0;
+                    } catch (nkg::exception&) {
+                        return false;
+                    }
+                }
+            );
+
+        if (CSRegistrationInfoFetcher_WIN_rtti_complete_object_locator_pTypeDescriptor == nullptr) {
+            wprintf_s(L"[-] patch_solution_since<16, 0, 7, 0>: RTTI info for CSRegistrationInfoFetcher_WIN is not found. (failure label 1)\n");
+            wprintf_s(L"[-] patch_solution_since<16, 0, 7, 0>: This patch solution will be suppressed.\n");
+            return false;
+        }
+
+        auto CSRegistrationInfoFetcher_WIN_rtti_complete_object_locator = CSRegistrationInfoFetcher_WIN_rtti_complete_object_locator_pTypeDescriptor - 0xC;
+
+        auto CSRegistrationInfoFetcher_WIN_rtti_complete_object_locator_va = m_libcc_interpreter.convert_ptr_to_va(CSRegistrationInfoFetcher_WIN_rtti_complete_object_locator);
+
+        auto CSRegistrationInfoFetcher_WIN_vtable_before =
+            m_libcc_interpreter.search_section<const uint8_t*>(
+                ".rdata",
+                [CSRegistrationInfoFetcher_WIN_rtti_complete_object_locator_va](const uint8_t* p, size_t s) {
+                    if (reinterpret_cast<uintptr_t>(p) % sizeof(uint64_t) != 0) {
+                        return false;
+                    }
+
+                    if (s < sizeof(uint64_t)) {
+                        return false;
+                    }
+
+                    return *reinterpret_cast<const uint64_t*>(p) == CSRegistrationInfoFetcher_WIN_rtti_complete_object_locator_va;
+                }
+            );
+
+        if (CSRegistrationInfoFetcher_WIN_vtable_before == nullptr) {
+            wprintf_s(L"[-] patch_solution_since<16, 0, 7, 0>: Vftable for CSRegistrationInfoFetcher_WIN is not found.\n");
+            wprintf_s(L"[-] patch_solution_since<16, 0, 7, 0>: This patch solution will be suppressed.\n");
+            return false;
+        }
+
+        auto CSRegistrationInfoFetcher_WIN_vtable = 
+            reinterpret_cast<const image_interpreter::va_t*>(CSRegistrationInfoFetcher_WIN_vtable_before + sizeof(image_interpreter::va_t));
+
+        m_va_CSRegistrationInfoFetcher_WIN_vtable = m_libcc_interpreter.convert_ptr_to_va(CSRegistrationInfoFetcher_WIN_vtable);
+        m_va_CSRegistrationInfoFetcher_WIN_GenerateRegistrationKey = CSRegistrationInfoFetcher_WIN_vtable[6];
+        wprintf(L"[*] patch_solution_since<16, 0, 7, 0>: m_va_CSRegistrationInfoFetcher_WIN_vtable = 0x%016llx\n", m_va_CSRegistrationInfoFetcher_WIN_vtable);
+        wprintf(L"[*] patch_solution_since<16, 0, 7, 0>: m_va_CSRegistrationInfoFetcher_WIN_GenerateRegistrationKey = 0x%016llx\n", m_va_CSRegistrationInfoFetcher_WIN_GenerateRegistrationKey);
+
+        amd64_emulator x64_emulator;
+
+        x64_emulator.context_set("heap_base", uint64_t{ 0x00007fff00000000 });
+        x64_emulator.context_set("heap_size", size_t{ 0x1000 * 32 });
+        x64_emulator.context_set("heap_records", std::map<uint64_t, uint64_t>{});
+
+        x64_emulator.context_set("stack_base", uint64_t{ 0x00007fffffff0000 });
+        x64_emulator.context_set("stack_size", size_t{ 0x1000 * 32 });
+        x64_emulator.context_set("stack_top", uint64_t{ x64_emulator.context_get<uint64_t>("stack_base") - x64_emulator.context_get<size_t>("stack_size") });        
+
+        x64_emulator.context_set("dead_area_base", uint64_t{ 0xfffffffffffff000 });
+        x64_emulator.context_set("dead_area_size", size_t{ 0x1000 });
+
+        x64_emulator.context_set("iat_base", uint64_t{ m_libcc_interpreter.convert_rva_to_va(m_libcc_interpreter.image_nt_headers()->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IAT].VirtualAddress) });
+        x64_emulator.context_set("iat_size", size_t{ m_libcc_interpreter.image_nt_headers()->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IAT].Size });
+
+        x64_emulator.context_set("external_api_stub_area_base", uint64_t{ 0xffff800000000000 });
+        x64_emulator.context_set("external_api_stub_area_size", size_t{ (x64_emulator.context_get<size_t>("iat_size") / 8 + 0xfff) / 0x1000 * 0x1000 });
+
+        x64_emulator.context_set("external_api_impl", std::map<std::string, uint64_t>{});
+        x64_emulator.context_set("external_api_impl_area_base", uint64_t{ 0xffff900000000000 });
+        x64_emulator.context_set("external_api_impl_area_size", size_t{ 0 });
+
+        x64_emulator.context_set("gs_base", uint64_t{ 0xffffa00000000000 });
+        x64_emulator.context_set("gs_size", size_t{ 0x1000 });
+
+        x64_emulator.context_set("start_address", static_cast<uint64_t>(m_va_CSRegistrationInfoFetcher_WIN_GenerateRegistrationKey));
+        x64_emulator.context_set("dead_address", x64_emulator.context_get<uint64_t>("dead_area_base"));
+
+        // allocate heap
+        x64_emulator.mem_map(x64_emulator.context_get<uint64_t>("heap_base"), x64_emulator.context_get<size_t>("heap_size"), UC_PROT_READ | UC_PROT_WRITE);
+
+        // allocate stack
+        x64_emulator.mem_map(x64_emulator.context_get<uint64_t>("stack_top"), x64_emulator.context_get<size_t>("stack_size"), UC_PROT_READ | UC_PROT_WRITE);
+
+        // allocate dead area
+        x64_emulator.mem_map(x64_emulator.context_get<uint64_t>("dead_area_base"), x64_emulator.context_get<size_t>("dead_area_size"), UC_PROT_READ | UC_PROT_EXEC);
+
+        // allocate and hook read access to IAT
+        {
+            auto iat_base = x64_emulator.context_get<uint64_t>("iat_base");
+            auto iat_size = x64_emulator.context_get<size_t>("iat_size");
+            auto external_api_stub_area_base = x64_emulator.context_get<uint64_t>("external_api_stub_area_base");
+
+            auto iat_page_base = iat_base / 0x1000 * 0x1000;
+            auto iat_page_count = (iat_base - iat_page_base + iat_size + 0xfff) / 0x1000;
+
+            x64_emulator.mem_map(iat_page_base, iat_page_count * 0x1000, UC_PROT_READ);
+            
+            x64_emulator.hook_add<UC_HOOK_MEM_READ>(
+                [this, &x64_emulator, iat_base, external_api_stub_area_base](uc_mem_type type, uint64_t address, size_t size, int64_t value) {
+                    auto rva = m_libcc_interpreter.convert_va_to_rva(address);
+                    auto import_lookup_entry = m_libcc_interpreter.import_lookup_entry_from_rva(rva);
+
+                    if (import_lookup_entry && !IMAGE_SNAP_BY_ORDINAL(import_lookup_entry->u1.Ordinal)) {
+                        auto import_by_name_entry = m_libcc_interpreter.convert_rva_to_ptr<PIMAGE_IMPORT_BY_NAME>(import_lookup_entry->u1.AddressOfData);
+                        if (strcmp(import_by_name_entry->Name, "memcpy") == 0) {
+                            uint64_t impl_address = x64_emulator.context_get<std::map<std::string, uint64_t>&>("external_api_impl")["memcpy"];
+                            x64_emulator.mem_write(address, &impl_address, sizeof(impl_address));
+                        } else if (strcmp(import_by_name_entry->Name, "memcmp") == 0) {
+                            uint64_t impl_address = x64_emulator.context_get<std::map<std::string, uint64_t>&>("external_api_impl")["memcmp"];
+                            x64_emulator.mem_write(address, &impl_address, sizeof(impl_address));
+                        } else {
+                            uint64_t stub_address = external_api_stub_area_base + (address - iat_base) / sizeof(IMAGE_THUNK_DATA);
+                            x64_emulator.mem_write(address, &stub_address, sizeof(stub_address));
+                        }
+                    } else {
+                        x64_emulator.emu_stop();
+                    }
+                },
+                iat_base,
+                iat_base + iat_size - 1
+            );
+        }
+
+        // allocate and setup external api stub area
+        {
+            auto external_api_stub_area_base = x64_emulator.context_get<uint64_t>("external_api_stub_area_base");
+            auto external_api_stub_area_size = x64_emulator.context_get<size_t>("external_api_stub_area_size");
+
+            x64_emulator.mem_map(external_api_stub_area_base, external_api_stub_area_size, UC_PROT_READ | UC_PROT_EXEC);
+            x64_emulator.mem_write(external_api_stub_area_base, std::vector<uint8_t>(external_api_stub_area_size, 0xc3));   // c3 -> ret
+
+            x64_emulator.hook_add<UC_HOOK_CODE>(
+                [this, &x64_emulator, external_api_stub_area_base](uint64_t address, size_t size) {
+                    auto iat_base = x64_emulator.context_get<uint64_t>("iat_base");
+                    auto from_va = iat_base + (address - external_api_stub_area_base) * sizeof(IMAGE_THUNK_DATA);
+                    auto from_rva = m_libcc_interpreter.convert_va_to_rva(from_va);
+
+                    auto import_lookup_entry = m_libcc_interpreter.import_lookup_entry_from_rva(from_rva);
+                    if (import_lookup_entry && !IMAGE_SNAP_BY_ORDINAL(import_lookup_entry->u1.Ordinal)) {
+                        auto import_by_name_entry = m_libcc_interpreter.convert_rva_to_ptr<PIMAGE_IMPORT_BY_NAME>(import_lookup_entry->u1.AddressOfData);
+                        if (strcmp(import_by_name_entry->Name, "malloc") == 0) {
+                            m_va_iat_entry_malloc = from_va;
+
+                            uint64_t alloc_size;
+                            x64_emulator.reg_read(UC_X86_REG_RCX, &alloc_size);
+
+                            auto& heap_records = x64_emulator.context_get<std::map<uint64_t, uint64_t>&>("heap_records");
+
+                            auto predecessor_chunk =
+                                std::adjacent_find(
+                                    heap_records.begin(), 
+                                    heap_records.end(),
+                                    [alloc_size](const auto& chunk0, const auto& chunk1) { return chunk1.first - (chunk0.first + chunk0.second) >= alloc_size; }
+                                );
+
+                            uint64_t alloc_p;
+                            if (predecessor_chunk != heap_records.end()) {
+                                alloc_p = predecessor_chunk->first + predecessor_chunk->second;
+                            } else {
+                                auto heap_base = x64_emulator.context_get<uint64_t>("heap_base");
+                                auto heap_size = x64_emulator.context_get<uint64_t>("heap_size");
+
+                                auto free_space_base = heap_records.size() > 0 ? heap_records.rbegin()->first + heap_records.rbegin()->second : heap_base;
+                                auto free_space_size = heap_base + heap_size - free_space_base;
+
+                                if (free_space_size < alloc_size) {
+                                    auto heap_expand_base = heap_base + heap_size;
+                                    auto heap_expand_size = (alloc_size - free_space_size + 0xfff) / 0x1000 * 0x1000;
+                                    x64_emulator.mem_map(heap_expand_base, heap_expand_size, UC_PROT_READ | UC_PROT_WRITE);
+                                }
+
+                                alloc_p = free_space_base;
+                            }
+
+                            heap_records[alloc_p] = alloc_size;
+
+                            x64_emulator.reg_write(UC_X86_REG_RAX, &alloc_p);
+                        } else if (strcmp(import_by_name_entry->Name, "free") == 0) {
+                            uint64_t alloc_p;
+                            x64_emulator.reg_read(UC_X86_REG_RCX, &alloc_p);
+
+                            auto& heap_records = x64_emulator.context_get<std::map<uint64_t, uint64_t>&>("heap_records");
+
+                            auto chunk = heap_records.find(alloc_p);
+                            if (chunk != heap_records.end()) {
+                                heap_records.erase(chunk);
+                            } else {
+                                x64_emulator.emu_stop();
+                            }
+                        } else {
+                            x64_emulator.emu_stop();
+                        }
+                    } else {
+                        x64_emulator.emu_stop();
+                    }
+                },
+                external_api_stub_area_base,
+                external_api_stub_area_base + external_api_stub_area_size - 1
+            );
+        }
+
+        // allocate and setup external api impl area
+        {
+            keystone_assembler x64_assembler{ KS_ARCH_X86, KS_MODE_64 };
+
+            std::map<std::string, std::vector<uint8_t>> machine_code_list =
+                {
+                    std::make_pair(
+                        "memcpy", 
+                        x64_assembler.assemble(
+                            "push rdi;"
+                            "push rsi;"
+                            "mov rdi, rcx;"
+                            "mov rsi, rdx;"
+                            "mov rcx, r8;"
+                            "rep movs byte ptr [rdi], byte ptr [rsi];"
+                            "pop rsi;"
+                            "pop rdi;"
+                            "ret;"
+                        )
+                    ),
+                    std::make_pair(
+                        "memcmp",
+                        x64_assembler.assemble(
+                            "    push rdi;"
+                            "    push rsi;"
+                            "    mov rsi, rcx;"
+                            "    mov rdi, rdx;"
+                            "    mov rcx, r8;"
+                            "    cmp rcx, rcx;"
+                            "    repe cmps byte ptr [rsi], byte ptr [rdi];"
+                            "    jz cmp_eq;"
+                            "cmp_not_eq:"
+                            "    movsx eax, byte ptr [rsi - 1];"
+                            "    movsx ecx, byte ptr [rdi - 1];"
+                            "    sub eax, ecx;"
+                            "    jmp final;"
+                            "cmp_eq:"
+                            "    xor eax, eax;"
+                            "final:"
+                            "    pop rsi;"
+                            "    pop rdi;"
+                            "    ret;"
+                        )
+                    ),
+                    std::make_pair(
+                        "memmove",
+                        x64_assembler.assemble(
+                            "    push rdi;"
+                            "    push rsi;"
+                            "    cmp rdx, rcx;"
+                            "    jb reverse_copy;"
+                            "copy:"
+                            "    mov rdi, rcx;"
+                            "    mov rsi, rdx;"
+                            "    mov rcx, r8;"
+                            "    rep movsb byte ptr[rdi], byte ptr[rsi];"
+                            "    jmp final;"
+                            "reverse_copy:"
+                            "    std;"
+                            "    lea rdi, qword ptr[rcx + r8 - 1];"
+                            "    lea rsi, qword ptr[rdx + r8 - 1];"
+                            "    mov rcx, r8;"
+                            "    rep movsb byte ptr[rdi], byte ptr[rsi];"
+                            "    cld;"
+                            "final:"
+                            "    pop rsi;"
+                            "    pop rdi;"
+                            "    ret;"
+                        )
+                    )
+                };
+
+            auto& external_api_impl = x64_emulator.context_get<std::map<std::string, uint64_t>&>("external_api_impl");
+            auto& external_api_impl_area_base = x64_emulator.context_get<uint64_t&>("external_api_impl_area_base");
+            auto& external_api_impl_area_size = x64_emulator.context_get<size_t&>("external_api_impl_area_size");
+
+            auto p = external_api_impl_area_base;
+            for (const auto& name_code_pair : machine_code_list) {
+                external_api_impl[name_code_pair.first] = p;
+                p = (p + name_code_pair.second.size() + 0xf) / 0x10 * 0x10;
+            }
+
+            external_api_impl_area_size = (p + 0xfff) / 0x1000 * 0x1000 - external_api_impl_area_base;
+
+            x64_emulator.mem_map(external_api_impl_area_base, external_api_impl_area_size, UC_PROT_READ | UC_PROT_EXEC);
+            for (const auto& name_code_pair : machine_code_list) {
+                x64_emulator.mem_write(external_api_impl[name_code_pair.first], name_code_pair.second);
+            }
+        }
+
+        // allocate and hook access to gs area
+        x64_emulator.mem_map(x64_emulator.context_get<uint64_t>("gs_base"), x64_emulator.context_get<size_t>("gs_size"), UC_PROT_READ | UC_PROT_WRITE);
+        x64_emulator.msr_write(0xC0000101, x64_emulator.context_get<uint64_t>("gs_base"));  // set gs base address
+
+        x64_emulator.hook_add<UC_HOOK_MEM_READ>(
+            [this, &x64_emulator](uc_mem_type access, uint64_t address, size_t size, int64_t value) {
+                auto gs_base = x64_emulator.context_get<uint64_t>("gs_base");
+                switch (address - gs_base) {
+                    case 0x10:  // qword ptr gs:[0x10] -> Stack Limit / Ceiling of stack (low address)
+                        {    
+                            uint64_t val = x64_emulator.context_get<uint64_t>("stack_top");
+                            x64_emulator.mem_write(address, &val, size);  
+                        }
+                        break;
+                    default:
+                        x64_emulator.emu_stop();
+                        break;
+                }
+            },
+            x64_emulator.context_get<uint64_t>("gs_base"),
+            x64_emulator.context_get<uint64_t>("gs_base") + x64_emulator.context_get<size_t>("gs_size") - 1
+        );
+
+        // x64_emulator.hook_add<UC_HOOK_CODE>([](uint64_t address, size_t size) { wprintf_s(L"code_trace, address = 0x%016zx\n", address); });
+
+        x64_emulator.hook_add<UC_HOOK_MEM_UNMAPPED>(
+            [this, &x64_emulator](uc_mem_type access, uint64_t address, size_t size, int64_t value) -> bool {
+                try {
+                    auto fault_section = m_libcc_interpreter.image_section_header_from_va(address);
+
+                    auto page_base = address / 0x1000 * 0x1000;
+                    auto page_size = 0x1000;
+                    uint32_t page_perms = UC_PROT_NONE;
+
+                    if (fault_section->Characteristics & IMAGE_SCN_MEM_READ) {
+                        page_perms |= UC_PROT_READ;
+                    }
+                    if (fault_section->Characteristics & IMAGE_SCN_MEM_WRITE) {
+                        page_perms |= UC_PROT_WRITE;
+                    }
+                    if (fault_section->Characteristics & IMAGE_SCN_MEM_EXECUTE) {
+                        page_perms |= UC_PROT_EXEC;
+                    }
+
+                    x64_emulator.mem_map(page_base, page_size, page_perms);
+                    x64_emulator.mem_write(page_base, m_libcc_interpreter.convert_va_to_ptr<const void*>(page_base), page_size);
+
+                    return true;
+                } catch (::nkg::exception&) {
+                    return false;
+                }
+            }
+        );
+        
+        // set rbp, rsp
+        uint64_t init_rbp = x64_emulator.context_get<uint64_t>("stack_base") - x64_emulator.context_get<size_t>("stack_size") / 4;
+        uint64_t init_rsp = x64_emulator.context_get<uint64_t>("stack_base") - x64_emulator.context_get<size_t>("stack_size") / 2;
+
+        x64_emulator.reg_write(UC_X86_REG_RBP, &init_rbp);
+        x64_emulator.reg_write(UC_X86_REG_RSP, &init_rsp);
+
+        // set return address
+        auto retaddr = x64_emulator.context_get<uint64_t>("dead_address");
+        x64_emulator.mem_write(init_rsp, &retaddr, sizeof(retaddr));
+
+        // set argument registers
+        uint64_t init_rcx = 0;                  // `this` pointer of CSRegistrationInfoFetcher_WIN, but we don't need it for now.
+        uint64_t init_rdx = init_rsp + 0x40;    // a pointer to stack memory which stores return value
+        x64_emulator.reg_write(UC_X86_REG_RCX, &init_rcx);
+        x64_emulator.reg_write(UC_X86_REG_RDX, &init_rdx);
+
+        // 
+        // start emulate
+        // 
+        try {
+            x64_emulator.emu_start(x64_emulator.context_get<uint64_t>("start_address"), x64_emulator.context_get<uint64_t>("dead_address"));
+        } catch (nkg::exception&) {
+            wprintf_s(L"[-] patch_solution_since<16, 0, 7, 0>: Code emulation failed.\n");
+            wprintf_s(L"[-] patch_solution_since<16, 0, 7, 0>: This patch solution will be suppressed.\n");
+            return false;
+        }
+
+        wprintf_s(L"[*] patch_solution_since<16, 0, 7, 0>: m_va_iat_entry_malloc = 0x%016llx\n", m_va_iat_entry_malloc);
+
+        //
+        // get result
+        // 
+        // on AMD64 platform, `std::string` has follow memory layout:
+        //     ------------------------------
+        //     | offset | size |
+        //     ------------------------------
+        //     | +0     | 0x10 | `char[16]: a small string buffer` OR `char*: a large string buffer pointer`
+        //     ------------------------------
+        //     | +0x10  | 0x8  | size_t: string length
+        //     ------------------------------
+        //     | +0x18  | 0x8  | size_t: capacity
+        //     ------------------------------
+        //
+        uint64_t encoded_key_length;
+        x64_emulator.mem_read(init_rdx + 0x10, &encoded_key_length, sizeof(encoded_key_length));
+        if (encoded_key_length != official_encoded_key.length()) {
+            wprintf_s(L"[-] patch_solution_since<16, 0, 7, 0>: unexpected encoded key length(%llu).\n", encoded_key_length);
+            wprintf_s(L"[-] patch_solution_since<16, 0, 7, 0>: This patch solution will be suppressed.\n");
+            return false;
+        }
+
+        uint64_t encoded_key_ptr;
+        x64_emulator.mem_read(init_rdx, &encoded_key_ptr, sizeof(encoded_key_ptr));
+
+        auto encoded_key = x64_emulator.mem_read(encoded_key_ptr, encoded_key_length);
+        if (memcmp(encoded_key.data(), official_encoded_key.data(), encoded_key.size()) == 0) {
+            wprintf_s(L"[+] patch_solution_since<16, 0, 7, 0>: official encoded key is found.\n");
+            return true;
+        } else {
+            wprintf_s(L"[-] patch_solution_since<16, 0, 7, 0>: official encoded key is not found.\n");
+            wprintf_s(L"[-] patch_solution_since<16, 0, 7, 0>: This patch solution will be suppressed.\n");
+            return false;
+        }
+    }
+
+    bool patch_solution_since<16, 0, 7, 0>::check_rsa_privkey(const rsa_cipher& cipher) {
+        return true;    // no requirements
+    }
+
+    void patch_solution_since<16, 0, 7, 0>::make_patch(const rsa_cipher& cipher) {
+        auto encoded_key = _build_encoded_key(cipher);
+
+        auto CSRegistrationInfoFetcher_WIN_GenerateRegistrationKey = 
+            m_libcc_interpreter.convert_va_to_ptr<uint8_t*>(m_va_CSRegistrationInfoFetcher_WIN_GenerateRegistrationKey);
+
+        std::vector<std::string> patch_code_chunks;
+        patch_code_chunks.emplace_back("push rdi;");
+        patch_code_chunks.emplace_back("push rsi;");
+        patch_code_chunks.emplace_back("push rbx;");
+        patch_code_chunks.emplace_back("push rbp;");
+        patch_code_chunks.emplace_back("mov rbp, rsp;");
+        patch_code_chunks.emplace_back("mov rbx, rdx;");
+        patch_code_chunks.emplace_back("sub rsp, 0x20;");
+        patch_code_chunks.emplace_back(fmt::format("mov rcx, {:#x};", encoded_key.length() + 1));
+        patch_code_chunks.emplace_back(fmt::format("call qword ptr [{:#016x}];", m_va_iat_entry_malloc));
+        patch_code_chunks.emplace_back("add rsp, 0x20;");
+        {
+            std::vector<uint64_t> push_values((encoded_key.length() + 1 + 7) / 8, 0);
+            memcpy(push_values.data(), encoded_key.data(), encoded_key.length());
+
+            std::for_each(
+                push_values.crbegin(), 
+                push_values.crend(), 
+                [&patch_code_chunks](uint64_t x) {
+                    patch_code_chunks.emplace_back(fmt::format("mov rdx, {:#016x};", x));
+                    patch_code_chunks.emplace_back("push rdx;");
+                }
+            );
+        }
+        patch_code_chunks.emplace_back("mov rdi, rax;");
+        patch_code_chunks.emplace_back("mov rsi, rsp;");
+        patch_code_chunks.emplace_back(fmt::format("mov rcx, {:#x};", encoded_key.length() + 1));
+        patch_code_chunks.emplace_back("rep movs byte ptr [rdi], byte ptr [rsi];");
+        patch_code_chunks.emplace_back("mov qword ptr [rbx], rax;");
+        patch_code_chunks.emplace_back(fmt::format("mov qword ptr [rbx + 0x10], {:#x};", encoded_key.length()));
+        patch_code_chunks.emplace_back(fmt::format("mov qword ptr [rbx + 0x18], {:#x};", encoded_key.length() + 1));
+        patch_code_chunks.emplace_back("mov rax, rbx;");
+        patch_code_chunks.emplace_back("leave;");
+        patch_code_chunks.emplace_back("pop rbx;");
+        patch_code_chunks.emplace_back("pop rsi;");
+        patch_code_chunks.emplace_back("pop rdi;");
+        patch_code_chunks.emplace_back("ret;");
+
+        //auto patch_code = keystone_assembler{ KS_ARCH_X86, KS_MODE_64 }
+        //    .assemble(
+        //        fmt::format(
+        //            "    push rdi;"
+        //            "    push rsi;"
+        //            "    push rbx;"
+        //            "    mov rbx, rdx;"
+        //            "allocate_string_buf:"
+        //            "    mov rcx, {encoded_key_length:#x} + 1;"
+        //            "    sub rsp, 0x20;"
+        //            "    call qword ptr [{m_va_iat_entry_malloc:#x}];"
+        //            "    add rsp, 0x20;"
+        //            "write_our_own_key_to_string_buf:"
+        //            "    mov rdi, rax;"
+        //            "    lea rsi, qword ptr [end_of_code + rip];"
+        //            "    mov rcx, 0x188;"
+        //            "    rep movs byte ptr [rdi], byte ptr [rsi];"
+        //            "    mov byte ptr [rdi], 0;"
+        //            "craft_std_string:"
+        //            "    mov qword ptr [rbx], rax;"
+        //            "    mov qword ptr [rbx + 0x10], {encoded_key_length:#x};"
+        //            "    mov qword ptr [rbx + 0x18], {encoded_key_length:#x} + 1;"
+        //            "final:"
+        //            "    mov rax, rbx;"
+        //            "    pop rbx;"
+        //            "    pop rsi;"
+        //            "    pop rdi;"
+        //            "    ret;"
+        //            "end_of_code:",
+        //            fmt::arg("encoded_key_length", encoded_key.length()),
+        //            fmt::arg("m_va_iat_entry_malloc", m_va_iat_entry_malloc)
+        //        ),
+        //        m_va_CSRegistrationInfoFetcher_WIN_GenerateRegistrationKey
+        //    );
+
+        std::vector<uint8_t> assembled_patch_code;
+        {
+            keystone_assembler x86_assembler{ KS_ARCH_X86, KS_MODE_64 };
+
+            auto current_va = m_va_CSRegistrationInfoFetcher_WIN_GenerateRegistrationKey;
+            auto next_reloc = m_libcc_interpreter.relocation_distribute().lower_bound(m_libcc_interpreter.convert_va_to_rva(current_va));
+            for (const auto& patch_code_chunk : patch_code_chunks) {
+                auto assembled_patch_code_chunk = x86_assembler.assemble(patch_code_chunk, current_va);
+
+                while (true) {
+                    auto next_reloc_va = m_libcc_interpreter.convert_rva_to_va(next_reloc->first);
+                    auto next_reloc_size = next_reloc->second;
+
+                    if (current_va + assembled_patch_code_chunk.size() + 2 <= next_reloc_va) {     // 2 -> size of machine code "jmp rel8"
+                        assembled_patch_code.insert(assembled_patch_code.end(), assembled_patch_code_chunk.begin(), assembled_patch_code_chunk.end());
+                        current_va += assembled_patch_code_chunk.size();
+                        break;
+                    } else if (current_va + 2 <= next_reloc_va) {
+                        auto next_va = next_reloc_va + next_reloc_size;
+                        auto assembled_jmp = x86_assembler.assemble(fmt::format("jmp {:#016x};", next_va), current_va);
+                        auto assembled_padding = std::vector<uint8_t>(next_va - (current_va + assembled_jmp.size()), 0xcc);     // 0xcc -> int3
+                        assembled_patch_code.insert(assembled_patch_code.end(), assembled_jmp.begin(), assembled_jmp.end());
+                        assembled_patch_code.insert(assembled_patch_code.end(), assembled_padding.begin(), assembled_padding.end());
+                        current_va = next_va;
+                        ++next_reloc;
+                    } else {
+                        __assume(false);    // impossible to reach here
+                    }
+                }
+            }
+        }
+
+        memcpy(CSRegistrationInfoFetcher_WIN_GenerateRegistrationKey, assembled_patch_code.data(), assembled_patch_code.size());
+        wprintf_s(L"[*] patch_solution_since<16, 0, 7, 0>: Patch has been done.\n");
+    }
+
+}

navicat-patcher/patch_solution_since_16.0.7.0.generic.cpp

@@ -0,0 +1,16 @@
+#include "patch_solution_since_16.0.7.0.hpp"
+#include <regex>
+
+namespace nkg {
+
+    std::string patch_solution_since<16, 0, 7, 0>::_build_encoded_key(const rsa_cipher& cipher) {
+        auto encoded_key = cipher.export_public_key_string_pem();
+
+        encoded_key = std::regex_replace(encoded_key, std::regex("-----BEGIN PUBLIC KEY-----"), "");
+        encoded_key = std::regex_replace(encoded_key, std::regex("-----END PUBLIC KEY-----"), "");
+        encoded_key = std::regex_replace(encoded_key, std::regex("\n"), "");
+
+        return encoded_key;
+    }
+
+}

navicat-patcher/patch_solution_since_16.0.7.0.hpp

@@ -0,0 +1,35 @@
+#pragma once
+#include "patch_solution_since.hpp"
+#include "image_interpreter.hpp"
+#include <any>
+#include <string>
+#include <map>
+
+namespace nkg {
+
+    template<>
+    class patch_solution_since<16, 0, 7, 0> final : public patch_solution {
+    private:
+        static inline std::string_view official_encoded_key = "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAw1dqF3SkCaAAmMzs889IqdW9M2dIdh3jG9yPcmLnmJiGpBF4E9VHSMGe8oPAy2kJDmdNt4BcEygvssEfginva5t5jm352UAoDosUJkTXGQhpAWMF4fBmBpO3EedG62rOsqMBgmSdAyxCSPBRJIOFR0QgZFbRnU0frj34fiVmgYiLuZSAmIbs8ZxiHPdp1oD4tUpvsFci4QJtYNjNnGU2WPH6rvChGl1IRKrxMtqLielsvajUjyrgOC6NmymYMvZNER3htFEtL1eQbCyTfDmtYyQ1Wt4Ot12lxf0wVIR5mcGN7XCXJRHOFHSf1gzXWabRSvmt1nrl7sW6cjxljuuQawIDAQAB";
+        
+        image_interpreter& m_libcc_interpreter;
+        image_interpreter::va_t m_va_CSRegistrationInfoFetcher_WIN_vtable;
+        image_interpreter::va_t m_va_CSRegistrationInfoFetcher_WIN_GenerateRegistrationKey;
+        image_interpreter::va_t m_va_iat_entry_malloc;
+
+        std::string _build_encoded_key(const rsa_cipher& cipher);
+
+    public:
+        patch_solution_since(image_interpreter& libcc_interpreter);
+
+        [[nodiscard]]
+        virtual bool find_patch() override;
+
+        [[nodiscard]]
+        virtual bool check_rsa_privkey(const rsa_cipher& cipher) override;
+
+        virtual void make_patch(const rsa_cipher& cipher) override;
+
+    };
+
+}

navicat-patcher/patch_solution_since_16.0.7.0.i386.cpp

@@ -0,0 +1,629 @@
+#define _CRT_SECURE_NO_WARNINGS
+#include "i386_emulator.hpp"
+#include "keystone_assembler.hpp"
+#include "patch_solution_since_16.0.7.0.hpp"
+#include <algorithm>
+#include <fmt/format.h>
+
+namespace nkg {
+
+    patch_solution_since<16, 0, 7, 0>::patch_solution_since(image_interpreter& libcc_interpreter) :
+        m_libcc_interpreter(libcc_interpreter),
+        m_va_CSRegistrationInfoFetcher_WIN_vtable(0),
+        m_va_CSRegistrationInfoFetcher_WIN_GenerateRegistrationKey(0),
+        m_va_iat_entry_malloc(0) {}
+
+    bool patch_solution_since<16, 0, 7, 0>::find_patch() {
+        auto CSRegistrationInfoFetcher_WIN_type_descriptor_name = 
+            m_libcc_interpreter.search_section<const uint8_t*>(
+                ".data", 
+                [](const uint8_t* p, size_t s) {
+                    if (s < sizeof(".?AVCSRegistrationInfoFetcher_WIN@@")) {
+                        return false;
+                    }
+
+                    return strcmp(reinterpret_cast<const char*>(p), ".?AVCSRegistrationInfoFetcher_WIN@@") == 0;
+                }
+            );
+
+        if (CSRegistrationInfoFetcher_WIN_type_descriptor_name == nullptr) {
+            wprintf_s(L"[-] patch_solution_since<16, 0, 7, 0>: RTTI info for CSRegistrationInfoFetcher_WIN is not found. (failure label 0)\n");
+            wprintf_s(L"[-] patch_solution_since<16, 0, 7, 0>: This patch solution will be suppressed.\n");
+            return false;
+        }
+
+        auto CSRegistrationInfoFetcher_WIN_rtti_type_descriptor = CSRegistrationInfoFetcher_WIN_type_descriptor_name - 0x8;
+
+        auto CSRegistrationInfoFetcher_WIN_rtti_type_descriptor_va = m_libcc_interpreter.convert_ptr_to_va(CSRegistrationInfoFetcher_WIN_rtti_type_descriptor);
+
+        auto CSRegistrationInfoFetcher_WIN_rtti_complete_object_locator_pTypeDescriptor =
+            m_libcc_interpreter.search_section<const uint8_t*>(
+                ".rdata", 
+                [this, CSRegistrationInfoFetcher_WIN_rtti_type_descriptor_va](const uint8_t* p, size_t s) {
+                    if (reinterpret_cast<uintptr_t>(p) % sizeof(uint32_t) != 0) {
+                        return false;
+                    }
+
+                    if (s < sizeof(uint32_t)) {
+                        return false;
+                    }
+
+                    if (*reinterpret_cast<const uint32_t*>(p) != CSRegistrationInfoFetcher_WIN_rtti_type_descriptor_va) {
+                        return false;
+                    }
+
+                    if (s < sizeof(uint32_t) * 2) {
+                        return false;
+                    }
+
+                    auto maybe_CSRegistrationInfoFetcher_WIN_rtti_class_hierarchy_descriptor_va = reinterpret_cast<const uint32_t*>(p)[1];
+
+                    try {
+                        return memcmp(m_libcc_interpreter.image_section_header_from_va(maybe_CSRegistrationInfoFetcher_WIN_rtti_class_hierarchy_descriptor_va)->Name, ".rdata\x00\x00", 8) == 0;
+                    } catch (nkg::exception&) {
+                        return false;
+                    }
+                }
+            );
+
+        if (CSRegistrationInfoFetcher_WIN_rtti_complete_object_locator_pTypeDescriptor == nullptr) {
+            wprintf_s(L"[-] patch_solution_since<16, 0, 7, 0>: RTTI info for CSRegistrationInfoFetcher_WIN is not found. (failure label 1)\n");
+            wprintf_s(L"[-] patch_solution_since<16, 0, 7, 0>: This patch solution will be suppressed.\n");
+            return false;
+        }
+
+        auto CSRegistrationInfoFetcher_WIN_rtti_complete_object_locator = CSRegistrationInfoFetcher_WIN_rtti_complete_object_locator_pTypeDescriptor - 0xC;
+
+        auto CSRegistrationInfoFetcher_WIN_rtti_complete_object_locator_va = m_libcc_interpreter.convert_ptr_to_va(CSRegistrationInfoFetcher_WIN_rtti_complete_object_locator);
+
+        auto CSRegistrationInfoFetcher_WIN_vtable_before =
+            m_libcc_interpreter.search_section<const uint8_t*>(
+                ".rdata",
+                [CSRegistrationInfoFetcher_WIN_rtti_complete_object_locator_va](const uint8_t* p, size_t s) {
+                    if (reinterpret_cast<uintptr_t>(p) % sizeof(uint32_t) != 0) {
+                        return false;
+                    }
+
+                    if (s < sizeof(uint32_t)) {
+                        return false;
+                    }
+
+                    return *reinterpret_cast<const uint32_t*>(p) == CSRegistrationInfoFetcher_WIN_rtti_complete_object_locator_va;
+                }
+        );
+
+        if (CSRegistrationInfoFetcher_WIN_vtable_before == nullptr) {
+            wprintf_s(L"[-] patch_solution_since<16, 0, 7, 0>: Vftable for CSRegistrationInfoFetcher_WIN is not found.\n");
+            wprintf_s(L"[-] patch_solution_since<16, 0, 7, 0>: This patch solution will be suppressed.\n");
+            return false;
+        }
+
+        auto CSRegistrationInfoFetcher_WIN_vtable =
+            reinterpret_cast<const uint32_t*>(CSRegistrationInfoFetcher_WIN_vtable_before + sizeof(uint32_t));
+
+        m_va_CSRegistrationInfoFetcher_WIN_vtable = m_libcc_interpreter.convert_ptr_to_va(CSRegistrationInfoFetcher_WIN_vtable);
+        m_va_CSRegistrationInfoFetcher_WIN_GenerateRegistrationKey = CSRegistrationInfoFetcher_WIN_vtable[6];
+        wprintf(L"[*] patch_solution_since<16, 0, 7, 0>: m_va_CSRegistrationInfoFetcher_WIN_vtable = 0x%08x\n", m_va_CSRegistrationInfoFetcher_WIN_vtable);
+        wprintf(L"[*] patch_solution_since<16, 0, 7, 0>: m_va_CSRegistrationInfoFetcher_WIN_GenerateRegistrationKey = 0x%08x\n", m_va_CSRegistrationInfoFetcher_WIN_GenerateRegistrationKey);
+
+
+        i386_emulator x86_emulator;
+
+        x86_emulator.context_set("heap_base", uint32_t{ 0x7f000000 });
+        x86_emulator.context_set("heap_size", size_t{ 0x1000 * 32 });
+        x86_emulator.context_set("heap_records", std::map<uint32_t, uint32_t>{});
+
+        x86_emulator.context_set("stack_base", uint32_t{ 0x7fff0000 });
+        x86_emulator.context_set("stack_size", size_t{ 0x1000 * 32 });
+        x86_emulator.context_set("stack_top", uint32_t{ x86_emulator.context_get<uint32_t>("stack_base") - x86_emulator.context_get<size_t>("stack_size") });
+
+        x86_emulator.context_set("r0_to_r3_stub_area_base", uint32_t{ 0xffffe000 });
+        x86_emulator.context_set("r0_to_r3_stub_area_size", size_t{ 0x1000 });
+
+        x86_emulator.context_set("dead_area_base", uint32_t{ 0xfffff000 });
+        x86_emulator.context_set("dead_area_size", size_t{ 0x1000 });
+
+        x86_emulator.context_set("iat_base", uint32_t{ m_libcc_interpreter.convert_rva_to_va(m_libcc_interpreter.image_nt_headers()->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IAT].VirtualAddress) });
+        x86_emulator.context_set("iat_size", size_t{ m_libcc_interpreter.image_nt_headers()->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IAT].Size });
+
+        x86_emulator.context_set("external_api_stub_area_base", uint32_t{ 0x80000000 });
+        x86_emulator.context_set("external_api_stub_area_size", size_t{ (x86_emulator.context_get<size_t>("iat_size") / 8 + 0xfff) / 0x1000 * 0x1000 });
+
+        x86_emulator.context_set("external_api_impl", std::map<std::string, uint32_t>{});
+        x86_emulator.context_set("external_api_impl_area_base", uint32_t{ 0x90000000 });
+        x86_emulator.context_set("external_api_impl_area_size", size_t{ 0 });
+
+        x86_emulator.context_set("gdt_base", uint32_t{ 0xffff0000 });
+        x86_emulator.context_set("gdt_size", size_t{ 0x1000 });
+
+        x86_emulator.context_set("fs_base", uint32_t{ 0xa0000000 });
+        x86_emulator.context_set("fs_size", size_t{ 0x1000 });
+
+        x86_emulator.context_set("start_address", static_cast<uint32_t>(m_va_CSRegistrationInfoFetcher_WIN_GenerateRegistrationKey));
+        x86_emulator.context_set("dead_address", x86_emulator.context_get<uint32_t>("dead_area_base"));
+
+        // allocate heap
+        x86_emulator.mem_map(x86_emulator.context_get<uint32_t>("heap_base"), x86_emulator.context_get<size_t>("heap_size"), UC_PROT_READ | UC_PROT_WRITE);
+
+        // allocate stack
+        x86_emulator.mem_map(x86_emulator.context_get<uint32_t>("stack_top"), x86_emulator.context_get<size_t>("stack_size"), UC_PROT_READ | UC_PROT_WRITE);
+
+        // allocate r0_to_r3_stub area
+        x86_emulator.mem_map(x86_emulator.context_get<uint32_t>("r0_to_r3_stub_area_base"), x86_emulator.context_get<size_t>("r0_to_r3_stub_area_size"), UC_PROT_READ | UC_PROT_EXEC);
+        x86_emulator.mem_write(x86_emulator.context_get<uint32_t>("r0_to_r3_stub_area_base"), keystone_assembler{ KS_ARCH_X86, KS_MODE_32 }.assemble("iretd;"));
+
+        // allocate dead area
+        x86_emulator.mem_map(x86_emulator.context_get<uint32_t>("dead_area_base"), x86_emulator.context_get<size_t>("dead_area_size"), UC_PROT_READ | UC_PROT_EXEC);
+
+        // allocate and hook read access to IAT
+        {
+            auto iat_base = x86_emulator.context_get<uint32_t>("iat_base");
+            auto iat_size = x86_emulator.context_get<size_t>("iat_size");
+            auto external_api_stub_area_base = x86_emulator.context_get<uint32_t>("external_api_stub_area_base");
+
+            auto iat_page_base = iat_base / 0x1000 * 0x1000;
+            auto iat_page_count = (iat_base - iat_page_base + iat_size + 0xfff) / 0x1000;
+
+            x86_emulator.mem_map(iat_page_base, iat_page_count * 0x1000, UC_PROT_READ);
+            
+            x86_emulator.hook_add<UC_HOOK_MEM_READ>(
+                [this, &x86_emulator, iat_base, external_api_stub_area_base](uc_mem_type type, uint32_t address, size_t size, int32_t value) {
+                    auto rva = m_libcc_interpreter.convert_va_to_rva(address);
+                    auto import_lookup_entry = m_libcc_interpreter.import_lookup_entry_from_rva(rva);
+
+                    if (import_lookup_entry && !IMAGE_SNAP_BY_ORDINAL(import_lookup_entry->u1.Ordinal)) {
+                        auto import_by_name_entry = m_libcc_interpreter.convert_rva_to_ptr<PIMAGE_IMPORT_BY_NAME>(import_lookup_entry->u1.AddressOfData);
+                        if (strcmp(import_by_name_entry->Name, "memcpy") == 0) {
+                            uint32_t impl_address = x86_emulator.context_get<std::map<std::string, uint32_t>&>("external_api_impl")["memcpy"];
+                            x86_emulator.mem_write(address, &impl_address, sizeof(impl_address));
+                        } else {
+                            uint32_t stub_address = external_api_stub_area_base + (address - iat_base) / sizeof(IMAGE_THUNK_DATA);
+                            x86_emulator.mem_write(address, &stub_address, sizeof(stub_address));
+                        }
+                    } else {
+                        x86_emulator.emu_stop();
+                    }
+                },
+                iat_base,
+                iat_base + iat_size - 1
+            );
+        }
+
+        // allocate and setup external api stub area
+        {
+            auto external_api_stub_area_base = x86_emulator.context_get<uint32_t>("external_api_stub_area_base");
+            auto external_api_stub_area_size = x86_emulator.context_get<size_t>("external_api_stub_area_size");
+
+            x86_emulator.mem_map(external_api_stub_area_base, external_api_stub_area_size, UC_PROT_READ | UC_PROT_EXEC);
+            x86_emulator.mem_write(external_api_stub_area_base, std::vector<uint8_t>(external_api_stub_area_size, 0xc3));   // c3 -> ret
+
+            x86_emulator.hook_add<UC_HOOK_CODE>(
+                [this, &x86_emulator, external_api_stub_area_base](uint32_t address, size_t size) {
+                    auto iat_base = x86_emulator.context_get<uint32_t>("iat_base");
+                    auto from_va = iat_base + (address - external_api_stub_area_base) * sizeof(IMAGE_THUNK_DATA);
+                    auto from_rva = m_libcc_interpreter.convert_va_to_rva(from_va);
+
+                    auto import_lookup_entry = m_libcc_interpreter.import_lookup_entry_from_rva(from_rva);
+                    if (import_lookup_entry && !IMAGE_SNAP_BY_ORDINAL(import_lookup_entry->u1.Ordinal)) {
+                        auto import_by_name_entry = m_libcc_interpreter.convert_rva_to_ptr<PIMAGE_IMPORT_BY_NAME>(import_lookup_entry->u1.AddressOfData);
+                        if (strcmp(import_by_name_entry->Name, "malloc") == 0) {
+                            m_va_iat_entry_malloc = from_va;
+
+                            uint32_t esp;
+                            x86_emulator.reg_read(UC_X86_REG_ESP, &esp);
+
+                            uint32_t alloc_size;
+                            x86_emulator.mem_read(esp + 4, &alloc_size, sizeof(alloc_size));
+
+                            auto& heap_records = x86_emulator.context_get<std::map<uint32_t, uint32_t>&>("heap_records");
+
+                            auto predecessor_chunk =
+                                std::adjacent_find(
+                                    heap_records.begin(), 
+                                    heap_records.end(),
+                                    [alloc_size](const auto& chunk0, const auto& chunk1) { return chunk1.first - (chunk0.first + chunk0.second) >= alloc_size; }
+                                );
+
+                            uint32_t alloc_p;
+                            if (predecessor_chunk != heap_records.end()) {
+                                alloc_p = predecessor_chunk->first + predecessor_chunk->second;
+                            } else {
+                                auto heap_base = x86_emulator.context_get<uint32_t>("heap_base");
+                                auto heap_size = x86_emulator.context_get<uint32_t>("heap_size");
+
+                                auto free_space_base = heap_records.size() > 0 ? heap_records.rbegin()->first + heap_records.rbegin()->second : heap_base;
+                                auto free_space_size = heap_base + heap_size - free_space_base;
+
+                                if (free_space_size < alloc_size) {
+                                    auto heap_expand_base = heap_base + heap_size;
+                                    auto heap_expand_size = (alloc_size - free_space_size + 0xfff) / 0x1000 * 0x1000;
+                                    x86_emulator.mem_map(heap_expand_base, heap_expand_size, UC_PROT_READ | UC_PROT_WRITE);
+                                }
+
+                                alloc_p = free_space_base;
+                            }
+
+                            heap_records[alloc_p] = alloc_size;
+
+                            x86_emulator.reg_write(UC_X86_REG_EAX, &alloc_p);
+                        } else if (strcmp(import_by_name_entry->Name, "free") == 0) {
+                            uint32_t esp;
+                            x86_emulator.reg_read(UC_X86_REG_ESP, &esp);
+
+                            uint32_t alloc_p;
+                            x86_emulator.mem_read(esp + 4, &alloc_p, sizeof(alloc_p));
+
+                            auto& heap_records = x86_emulator.context_get<std::map<uint32_t, uint32_t>&>("heap_records");
+
+                            auto chunk = heap_records.find(alloc_p);
+                            if (chunk != heap_records.end()) {
+                                heap_records.erase(chunk);
+                            } else {
+                                x86_emulator.emu_stop();
+                            }
+                        } else {
+                            x86_emulator.emu_stop();
+                        }
+                    } else {
+                        x86_emulator.emu_stop();
+                    }
+                },
+                external_api_stub_area_base,
+                external_api_stub_area_base + external_api_stub_area_size - 1
+            );
+        }
+
+        // allocate and setup external api impl area
+        {
+            keystone_assembler x86_assembler{ KS_ARCH_X86, KS_MODE_32 };
+
+            std::map<std::string, std::vector<uint8_t>> machine_code_list =
+                {
+                    std::make_pair(
+                        "memcpy",
+                        x86_assembler.assemble(
+                            "push edi;"
+                            "push esi;"
+                            "mov eax, dword ptr [esp + 0x8 + 0x4];"
+                            "mov edi, eax;"
+                            "mov esi, dword ptr [esp + 0x8 + 0x8];"
+                            "mov ecx, dword ptr [esp + 0x8 + 0xc];"
+                            "rep movs byte ptr [edi], byte ptr [esi];"
+                            "pop esi;"
+                            "pop edi;"
+                            "ret;"
+                        )
+                    )
+                };
+
+            auto& external_api_impl = x86_emulator.context_get<std::map<std::string, uint32_t>&>("external_api_impl");
+            auto& external_api_impl_area_base = x86_emulator.context_get<uint32_t&>("external_api_impl_area_base");
+            auto& external_api_impl_area_size = x86_emulator.context_get<size_t&>("external_api_impl_area_size");
+
+            auto p = external_api_impl_area_base;
+            for (const auto& name_code_pair : machine_code_list) {
+                external_api_impl[name_code_pair.first] = p;
+                p = (p + name_code_pair.second.size() + 0xf) / 0x10 * 0x10;
+            }
+
+            external_api_impl_area_size = (p + 0xfff) / 0x1000 * 0x1000 - external_api_impl_area_base;
+
+            x86_emulator.mem_map(external_api_impl_area_base, external_api_impl_area_size, UC_PROT_READ | UC_PROT_EXEC);
+            for (const auto& name_code_pair : machine_code_list) {
+                x86_emulator.mem_write(external_api_impl[name_code_pair.first], name_code_pair.second);
+            }
+        }
+
+        // allocate and setup GDT, segment registers
+        {
+            auto gdt_base = x86_emulator.context_get<uint32_t>("gdt_base");
+            auto gdt_size = x86_emulator.context_get<size_t>("gdt_size");
+            x86_emulator.mem_map(gdt_base, gdt_size, UC_PROT_READ | UC_PROT_WRITE);
+            
+            x86_emulator.create_gdt_entry(gdt_base, 0, 0, 0, 0);    // null segment descriptor
+            // -------------------------------------------------------- access_byte
+            // 0x80     -> present bit
+            // (0 << 5) -> DPL is set to 0
+            // 0x10     -> code/data segment
+            // 0x08     -> executable segment
+            // !(0x4)   -> not conforming code segment
+            // 0x02     -> code segment is readable
+            // !(0x01)  -> accessed bit, this bit is managed by CPU
+            // -------------------------------------------------------- flags
+            // 0x08     -> 4k granularity  
+            // 0x04     -> 32-bit protected mode segment
+            // !(0x01)  -> AVL bit is not used
+            x86_emulator.create_gdt_entry(gdt_base + 1 * 0x8, 0x00000000, 0xfffff, 0x80 | (0 << 5) | 0x10 | 0x08 | !(0x04) | 0x02 | !(0x01), 0x08 | 0x04 | !(0x01));    // kernel code segment
+            // -------------------------------------------------------- access_byte
+            // 0x80     -> present bit
+            // (0 << 5) -> DPL is set to 0
+            // 0x10     -> code/data segment
+            // !(0x08)  -> data segment
+            // !(0x4)   -> segment grows up
+            // 0x02     -> data segment is writable
+            // !(0x01)  -> accessed bit, this bit is managed by CPU
+            // -------------------------------------------------------- flags
+            // 0x08     -> 4k granularity  
+            // 0x04     -> 32-bit protected mode segment
+            // !(0x01)  -> AVL bit is not used
+            x86_emulator.create_gdt_entry(gdt_base + 2 * 0x8, 0x00000000, 0xfffff, 0x80 | (0 << 5) | 0x10 | !(0x08) | !(0x04) | 0x02 | !(0x01), 0x08 | 0x04 | !(0x01)); // kernel data segment
+            // -------------------------------------------------------- access_byte
+            // 0x80     -> present bit
+            // (3 << 5) -> DPL is set to 3
+            // 0x10     -> code/data segment
+            // 0x08     -> executable segment
+            // !(0x4)   -> not conforming code segment
+            // 0x02     -> code segment is readable
+            // !(0x01)  -> accessed bit, this bit is managed by CPU
+            // -------------------------------------------------------- flags
+            // 0x08     -> 4k granularity  
+            // 0x04     -> 32-bit protected mode segment
+            // !(0x01)  -> AVL bit is not used
+            x86_emulator.create_gdt_entry(gdt_base + 3 * 0x8, 0x00000000, 0xfffff, 0x80 | (3 << 5) | 0x10 | 0x08 | !(0x04) | 0x02 | !(0x01), 0x08 | 0x04 | !(0x01));    // user code segment
+            // -------------------------------------------------------- access_byte
+            // 0x80     -> present bit
+            // (3 << 5) -> DPL is set to 3
+            // 0x10     -> code/data segment
+            // !(0x08)  -> data segment
+            // !(0x4)   -> segment grows up
+            // 0x02     -> data segment is writable
+            // !(0x01)  -> accessed bit, this bit is managed by CPU
+            // -------------------------------------------------------- flags
+            // 0x08     -> 4k granularity  
+            // 0x04     -> 32-bit protected mode segment
+            // !(0x01)  -> AVL bit is not used
+            x86_emulator.create_gdt_entry(gdt_base + 4 * 0x8, 0x00000000, 0xfffff, 0x80 | (3 << 5) | 0x10 | !(0x08) | !(0x04) | 0x02 | !(0x01), 0x08 | 0x04 | !(0x01)); // user data segment
+            // -------------------------------------------------------- access_byte
+            // 0x80     -> present bit
+            // (3 << 5) -> DPL is set to 3
+            // 0x10     -> code/data segment
+            // !(0x08)  -> data segment
+            // !(0x4)   -> segment grows up
+            // 0x02     -> data segment is writable
+            // !(0x01)  -> accessed bit, this bit is managed by CPU
+            // -------------------------------------------------------- flags
+            // !(0x08)  -> 1-byte granularity  
+            // 0x04     -> 32-bit protected mode segment
+            // !(0x01)  -> AVL bit is not used
+            auto fs_base = x86_emulator.context_get<uint32_t>("fs_base");
+            auto fs_size = x86_emulator.context_get<size_t>("fs_size");
+            x86_emulator.create_gdt_entry(gdt_base + 7 * 0x8, fs_base, fs_size - 1, 0x80 | (3 << 5) | 0x10 | !(0x08) | !(0x04) | 0x02 | !(0x01), !(0x08) | 0x04 | !(0x01)); // user fs segment
+
+            uc_x86_mmr gdtr = {};
+            gdtr.base = gdt_base;
+            gdtr.limit = gdt_base + gdt_size - 1;
+            x86_emulator.reg_write(UC_X86_REG_GDTR, &gdtr);
+
+            uint16_t cs, ds, es, fs, gs, ss;
+            cs = (1 << 3) | (0 << 2) | (0);             // use kernel code segmet
+            ss = (2 << 3) | (0 << 2) | (0);             // use kernel data segmet
+            ds = es = (4 << 3) | (0 << 2) | (3);        // use user data segment
+            fs = (7 << 3) | (0 << 2) | (3);             // use user fs segment
+            gs = 0;                                     // not used
+
+            uint32_t eflags;
+            x86_emulator.reg_read(UC_X86_REG_EFLAGS, &eflags);
+            x86_emulator.reg_write(UC_X86_REG_CS, &cs);
+            x86_emulator.reg_write(UC_X86_REG_SS, &ss);
+            x86_emulator.reg_write(UC_X86_REG_DS, &ds);
+            x86_emulator.reg_write(UC_X86_REG_ES, &es);
+            x86_emulator.reg_write(UC_X86_REG_FS, &fs);
+            x86_emulator.reg_write(UC_X86_REG_GS, &gs);
+            
+        }
+
+        // allocate and hook access to fs area
+        {
+            auto fs_base = x86_emulator.context_get<uint32_t>("fs_base");
+            auto fs_size = x86_emulator.context_get<size_t>("fs_size");
+            x86_emulator.mem_map(fs_base, fs_size, UC_PROT_READ | UC_PROT_WRITE);
+
+            x86_emulator.hook_add<UC_HOOK_MEM_READ>(
+                [this, &x86_emulator, fs_base](uc_mem_type access, uint32_t address, size_t size, int64_t value) {
+                    switch (address - fs_base) {
+                        case 0:
+                            if (size == 4) {
+                                // Current Structured Exception Handling (SEH) frame, leave it NULL
+                            } else {
+                                x86_emulator.emu_stop();
+                            }
+                            break;
+                        default:
+                            x86_emulator.emu_stop();
+                            break;
+                    }
+                },
+                fs_base, 
+                fs_base + fs_size - 1
+            );
+        }
+
+        // x86_emulator.hook_add<UC_HOOK_CODE>([](uint32_t address, uint32_t size) { wprintf_s(L"code_trace, address = 0x%08x\n", address); });
+
+        x86_emulator.hook_add<UC_HOOK_MEM_UNMAPPED>(
+            [this, &x86_emulator](uc_mem_type access, uint32_t address, size_t size, int64_t value) -> bool {
+                try {
+                    auto fault_section = m_libcc_interpreter.image_section_header_from_va(address);
+
+                    auto page_base = address / 0x1000 * 0x1000;
+                    auto page_size = 0x1000;
+                    uint32_t page_perms = UC_PROT_NONE;
+
+                    if (fault_section->Characteristics & IMAGE_SCN_MEM_READ) {
+                        page_perms |= UC_PROT_READ;
+                    }
+                    if (fault_section->Characteristics & IMAGE_SCN_MEM_WRITE) {
+                        page_perms |= UC_PROT_WRITE;
+                    }
+                    if (fault_section->Characteristics & IMAGE_SCN_MEM_EXECUTE) {
+                        page_perms |= UC_PROT_EXEC;
+                    }
+
+                    x86_emulator.mem_map(page_base, page_size, page_perms);
+                    x86_emulator.mem_write(page_base, m_libcc_interpreter.convert_va_to_ptr<const void*>(page_base), page_size);
+
+                    return true;
+                } catch (::nkg::exception&) {
+                    return false;
+                }
+            }
+        );
+
+        // set ebp, esp
+        uint32_t init_ebp = x86_emulator.context_get<uint32_t>("stack_base") - x86_emulator.context_get<size_t>("stack_size") / 4;
+        uint32_t init_esp = x86_emulator.context_get<uint32_t>("stack_base") - x86_emulator.context_get<size_t>("stack_size") / 2;
+
+        x86_emulator.reg_write(UC_X86_REG_EBP, &init_ebp);
+        x86_emulator.reg_write(UC_X86_REG_ESP, &init_esp);
+
+        // setup iretd context
+        uint32_t ring3_eip = x86_emulator.context_get<uint32_t>("start_address");
+        uint32_t ring3_cs = (3 << 3) | (0 << 2) | (3);  // use user code segment
+        uint32_t ring3_eflags; x86_emulator.reg_read(UC_X86_REG_EFLAGS, &ring3_eflags);
+        uint32_t ring3_esp = init_esp + 5 * 4;
+        uint32_t ring3_ss = (4 << 3) | (0 << 2) | (3);  // use user data segment
+        x86_emulator.mem_write(init_esp, &ring3_eip, sizeof(ring3_eip));
+        x86_emulator.mem_write(init_esp + 0x4, &ring3_cs, sizeof(ring3_cs));
+        x86_emulator.mem_write(init_esp + 0x8, &ring3_eflags, sizeof(ring3_eflags));
+        x86_emulator.mem_write(init_esp + 0xc, &ring3_esp, sizeof(ring3_esp));
+        x86_emulator.mem_write(init_esp + 0x10, &ring3_ss, sizeof(ring3_ss));
+
+        // set ring3 retaddr
+        uint32_t ring3_retaddr = x86_emulator.context_get<uint32_t>("dead_address");
+        x86_emulator.mem_write(ring3_esp, &ring3_retaddr, sizeof(ring3_retaddr));
+
+        // set argument registers
+        uint32_t init_ecx = 0;                              // `this` pointer of CSRegistrationInfoFetcher_WIN, but we don't need it for now.
+        uint32_t retval_addr = ring3_esp + 0x40;            // a pointer to stack memory which stores return value
+        x86_emulator.reg_write(UC_X86_REG_ECX, &init_ecx);
+        x86_emulator.mem_write(ring3_esp + 4, &retval_addr, sizeof(retval_addr));   // write to dword ptr [ring3_esp + 4]
+
+        // 
+        // start emulate
+        // 
+        try {
+            x86_emulator.emu_start(x86_emulator.context_get<uint32_t>("r0_to_r3_stub_area_base"), x86_emulator.context_get<uint32_t>("dead_address"));
+        } catch (nkg::exception&) {
+            wprintf_s(L"[-] patch_solution_since<16, 0, 7, 0>: Code emulation failed.\n");
+            wprintf_s(L"[-] patch_solution_since<16, 0, 7, 0>: This patch solution will be suppressed.\n");
+            return false;
+        }
+
+        wprintf_s(L"[*] patch_solution_since<16, 0, 7, 0>: m_va_iat_entry_malloc = 0x%08x\n", m_va_iat_entry_malloc);
+
+        //
+        // get result
+        // 
+        // on I386 platform, `std::string` has follow memory layout:
+        //     ------------------------------
+        //     | offset | size |
+        //     ------------------------------
+        //     | +0     | 0x10 | `char[16]: a small string buffer` OR `char*: a large string buffer pointer`
+        //     ------------------------------
+        //     | +0x10  | 0x4  | size_t: string length
+        //     ------------------------------
+        //     | +0x14  | 0x4  | size_t: capacity
+        //     ------------------------------
+        //
+        uint32_t encoded_key_length;
+        x86_emulator.mem_read(retval_addr + 0x10, &encoded_key_length, sizeof(encoded_key_length));
+        if (encoded_key_length != official_encoded_key.length()) {
+            wprintf_s(L"[-] patch_solution_since<16, 0, 7, 0>: Unexpected encoded key length(%u).\n", encoded_key_length);
+            wprintf_s(L"[-] patch_solution_since<16, 0, 7, 0>: This patch solution will be suppressed.\n");
+            return false;
+        }
+
+        uint32_t encoded_key_ptr;
+        x86_emulator.mem_read(retval_addr, &encoded_key_ptr, sizeof(encoded_key_ptr));
+
+        auto encoded_key = x86_emulator.mem_read(encoded_key_ptr, encoded_key_length);
+        if (memcmp(encoded_key.data(), official_encoded_key.data(), encoded_key.size()) == 0) {
+            wprintf_s(L"[+] patch_solution_since<16, 0, 7, 0>: Official encoded key is found.\n");
+            return true;
+        } else {
+            wprintf_s(L"[-] patch_solution_since<16, 0, 7, 0>: Official encoded key is not found.\n");
+            wprintf_s(L"[-] patch_solution_since<16, 0, 7, 0>: This patch solution will be suppressed.\n");
+            return false;
+        }
+    }
+
+    bool patch_solution_since<16, 0, 7, 0>::check_rsa_privkey(const rsa_cipher& cipher) {
+        return true;    // no requirements
+    }
+
+    void patch_solution_since<16, 0, 7, 0>::make_patch(const rsa_cipher& cipher) {
+        auto encoded_key = _build_encoded_key(cipher);
+
+        auto CSRegistrationInfoFetcher_WIN_GenerateRegistrationKey = 
+            m_libcc_interpreter.convert_va_to_ptr<uint8_t*>(m_va_CSRegistrationInfoFetcher_WIN_GenerateRegistrationKey);
+
+        std::vector<std::string> patch_code_chunks;
+        patch_code_chunks.emplace_back("push edi;");
+        patch_code_chunks.emplace_back("push esi;");
+        patch_code_chunks.emplace_back("push ebx;");
+        patch_code_chunks.emplace_back("push ebp;");
+        patch_code_chunks.emplace_back("mov ebp, esp;");
+        patch_code_chunks.emplace_back("call label; label: pop ebx; sub ebx, label;");  // ebx <- relocation shift value
+        patch_code_chunks.emplace_back(fmt::format("mov eax, {:#08x};", m_va_iat_entry_malloc));
+        patch_code_chunks.emplace_back("add eax, ebx;");
+        patch_code_chunks.emplace_back("mov eax, dword ptr [eax];");                    // eax <- address of `malloc`
+        patch_code_chunks.emplace_back(fmt::format("push {:#x};", encoded_key.length() + 1));
+        patch_code_chunks.emplace_back("call eax;");
+        patch_code_chunks.emplace_back("add esp, 0x4;");
+        {
+            std::vector<uint32_t> push_values((encoded_key.length() + 1 + 3) / 4, 0);
+            memcpy(push_values.data(), encoded_key.data(), encoded_key.length());
+            std::for_each(push_values.crbegin(), push_values.crend(), [&patch_code_chunks](uint32_t x) { patch_code_chunks.emplace_back(fmt::format("push {:#08x};", x)); });
+        }
+        patch_code_chunks.emplace_back("mov edi, eax;");
+        patch_code_chunks.emplace_back("mov esi, esp;");
+        patch_code_chunks.emplace_back(fmt::format("mov ecx, {:#x};", encoded_key.length() + 1));
+        patch_code_chunks.emplace_back("rep movs byte ptr [edi], byte ptr [esi];");
+        patch_code_chunks.emplace_back("mov edx, dword ptr [ebp + 0x14];");
+        patch_code_chunks.emplace_back("mov dword ptr [edx], eax;");
+        patch_code_chunks.emplace_back(fmt::format("mov dword ptr [edx + 0x10], {:#x};", encoded_key.length()));
+        patch_code_chunks.emplace_back(fmt::format("mov dword ptr [edx + 0x14], {:#x};", encoded_key.length() + 1));
+        patch_code_chunks.emplace_back("mov eax, edx;");
+        patch_code_chunks.emplace_back("leave;");
+        patch_code_chunks.emplace_back("pop ebx;");
+        patch_code_chunks.emplace_back("pop esi;");
+        patch_code_chunks.emplace_back("pop edi;");
+        patch_code_chunks.emplace_back("ret 4;");
+
+        std::vector<uint8_t> assembled_patch_code;
+        {
+            keystone_assembler x86_assembler{ KS_ARCH_X86, KS_MODE_32 };
+
+            auto current_va = m_va_CSRegistrationInfoFetcher_WIN_GenerateRegistrationKey;
+            auto next_reloc = m_libcc_interpreter.relocation_distribute().lower_bound(m_libcc_interpreter.convert_va_to_rva(current_va));
+            for (const auto& patch_code_chunk : patch_code_chunks) {
+                auto assembled_patch_code_chunk = x86_assembler.assemble(patch_code_chunk, current_va);
+
+                while (true) {
+                    auto next_reloc_va = m_libcc_interpreter.convert_rva_to_va(next_reloc->first);
+                    auto next_reloc_size = next_reloc->second;
+
+                    if (current_va + assembled_patch_code_chunk.size() + 2 <= next_reloc_va) {     // 2 -> size of machine code "jmp rel8"
+                        assembled_patch_code.insert(assembled_patch_code.end(), assembled_patch_code_chunk.begin(), assembled_patch_code_chunk.end());
+                        current_va += assembled_patch_code_chunk.size();
+                        break;
+                    } else if (current_va + 2 <= next_reloc_va) {
+                        auto next_va = next_reloc_va + next_reloc_size;
+                        auto assembled_jmp = x86_assembler.assemble(fmt::format("jmp {:#08x};", next_va), current_va);
+                        auto assembled_padding = std::vector<uint8_t>(next_va - (current_va + assembled_jmp.size()), 0xcc);     // 0xcc -> int3
+                        assembled_patch_code.insert(assembled_patch_code.end(), assembled_jmp.begin(), assembled_jmp.end());
+                        assembled_patch_code.insert(assembled_patch_code.end(), assembled_padding.begin(), assembled_padding.end());
+                        current_va = next_va;
+                        ++next_reloc;
+                    } else {
+                        __assume(false);    // impossible to reach here
+                    }
+                }
+            }
+        }
+
+        memcpy(CSRegistrationInfoFetcher_WIN_GenerateRegistrationKey, assembled_patch_code.data(), assembled_patch_code.size());
+        wprintf_s(L"[*] patch_solution_since<16, 0, 7, 0>: Patch has been done.\n");
+    }
+
+}

navicat-patcher/wmain.cpp

@@ -0,0 +1,305 @@
+#include <stdio.h>
+#include <windows.h>
+#include <fmt/format.h>
+#include <filesystem>
+#include <optional>
+
+#include "cp_converter.hpp"
+
+#include "resource_wrapper.hpp"
+#include "resource_traits/cxx_object_traits.hpp"
+#include "resource_traits/win32/file_handle.hpp"
+#include "resource_traits/win32/generic_handle.hpp"
+#include "resource_traits/win32/map_view_ptr.hpp"
+
+#include "rsa_cipher.hpp"
+#include "image_interpreter.hpp"
+#include "patch_solution.hpp"
+#include "patch_solution_since_16.0.7.0.hpp"
+
+#include "exception.hpp"
+#include "exceptions/operation_canceled_exception.hpp"
+#include "exceptions/win32_exception.hpp"
+
+#define NKG_CURRENT_SOURCE_FILE() u8".\\navicat-patcher\\wmain.cpp"
+#define NKG_CURRENT_SOURCE_LINE() __LINE__
+
+void welcome() {
+    _putws(L"***************************************************");
+    _putws(L"*       navicat-patcher by @DoubleLabyrinth       *");
+    _putws(L"*               version: 16.0.7.0                 *");
+    _putws(L"***************************************************");
+    _putws(L"");
+}
+
+
+void help() {
+    _putws(L"usage:");
+    _putws(L"    navicat-patcher.exe [-dry-run] <Navicat Install Path> [RSA-2048 PEM File Path]");
+    _putws(L"");
+    _putws(L"    [-dry-run]                   Run patcher without applying any patches.");
+    _putws(L"                                 This parameter is optional.");
+    _putws(L"");
+    _putws(L"    <Navicat Install Path>       The folder path where Navicat is installed.");
+    _putws(L"                                 This parameter must be specified.");
+    _putws(L"");
+    _putws(L"    [RSA-2048 PEM File Path]     The path to an RSA-2048 private key file.");
+    _putws(L"                                 This parameter is optional.");
+    _putws(L"                                 If not specified, an RSA-2048 private key file");
+    _putws(L"                                 named \"RegPrivateKey.pem\" will be generated.");
+    _putws(L"");
+    _putws(L"example:");
+    _putws(L"    navicat-patcher.exe \"C:\\Program Files\\PremiumSoft\\Navicat Premium 12\"");
+    _putws(L"");
+}
+
+bool parse_cmdline(int argc, wchar_t* argv[], bool& dry_run, std::filesystem::path& navicat_install_path, std::filesystem::path& rsa_privkey_filepath) {
+    if (argc == 2) {
+        dry_run = false;
+        navicat_install_path = argv[1];
+        rsa_privkey_filepath.clear();
+        return true;
+    } else if (argc == 3) {
+        if (_wcsicmp(argv[1], L"-dry-run") == 0) {
+            dry_run = true;
+            navicat_install_path = argv[2];
+            rsa_privkey_filepath.clear();
+            return true;
+        } else {
+            dry_run = false;
+            navicat_install_path = argv[1];
+            rsa_privkey_filepath = argv[2];
+            return true;
+        }
+    } else if (argc == 4) {
+        if (_wcsicmp(argv[1], L"-dry-run") == 0) {
+            dry_run = true;
+            navicat_install_path = argv[2];
+            rsa_privkey_filepath = argv[3];
+            return true;
+        } else {
+            return false;
+        }
+    } else {
+        return false;
+    }
+}
+
+void select_patch_solutions
+    (nkg::resource_wrapper<nkg::resource_traits::cxx_object_traits<nkg::patch_solution>>& solution0)
+{
+    return;
+}
+
+void load_rsa_privkey(nkg::rsa_cipher& cipher, std::filesystem::path& rsa_privkey_filepath, nkg::patch_solution* solution0) {
+    if (!rsa_privkey_filepath.empty()) {
+        wprintf_s(L"[*] Import RSA-2048 private key from\n");
+        wprintf_s(L"    %s\n", rsa_privkey_filepath.native().c_str());
+
+        cipher.import_private_key_file(rsa_privkey_filepath);
+
+        if (solution0 && !solution0->check_rsa_privkey(cipher)) {
+            throw nkg::exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"The RSA private key you provide cannot be used.");
+        }
+    } else {
+        wprintf_s(L"[*] Generating new RSA private key, it may take a long time...\n");
+
+        do {
+            cipher.generate_key(2048);
+        } while (solution0 && !solution0->check_rsa_privkey(cipher));   // re-generate RSA key if one of `check_rsa_privkey` returns false
+    }
+
+    wprintf_s(L"[*] Your RSA private key:\n%s", nkg::cp_converter<CP_UTF8, -1>::convert(cipher.export_private_key_string()).c_str());
+}
+
+void detect_backup(const std::filesystem::path& file_path) {
+    std::filesystem::path backup_path = file_path.native() + L".bak";
+    if (std::filesystem::is_regular_file(backup_path)) {
+        while (true) {
+            wprintf_s(L"[*] Previous backup %s is detected. Delete? (y/n)", backup_path.native().c_str());
+
+            auto select = getwchar();
+            while (select != L'\n' && getwchar() != L'\n') {}
+
+            if (select == L'Y' || select == L'y') {
+                std::filesystem::remove(backup_path);
+                break;
+            } else if (select == TEXT('N') || select == TEXT('n')) {
+                throw nkg::exceptions::operation_canceled_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Backup file still exists. Patch abort!");
+            } else {
+                continue;
+            }
+        }
+    }
+}
+
+void make_backup(const std::filesystem::path& file_path) {
+    std::filesystem::path backup_path = file_path.native() + L".bak";
+    if (std::filesystem::exists(backup_path)) {
+        throw nkg::exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Previous backup is detected.")
+            .push_hint(fmt::format(u8"Please delete {} and try again.", nkg::cp_converter<-1, CP_UTF8>::convert(backup_path.native())));
+    } else {
+        std::filesystem::copy_file(file_path, backup_path);
+    }
+}
+
+int wmain(int argc, wchar_t* argv[]) {
+    welcome();
+
+    bool dry_run = false;
+    std::filesystem::path navicat_install_path;
+    std::filesystem::path rsa_privkey_filepath;
+
+    if (parse_cmdline(argc, argv, dry_run, navicat_install_path, rsa_privkey_filepath)) {
+        try {
+            if (!std::filesystem::is_directory(navicat_install_path)) {
+                throw nkg::exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"Navicat install path doesn't point to a directory.")
+                    .push_hint(u8"Are you sure the path you specified is correct?")
+                    .push_hint(fmt::format(u8"The path you specified: {}", nkg::cp_converter<-1, CP_UTF8>::convert(navicat_install_path.native())));
+            }
+
+            if (!rsa_privkey_filepath.empty() && !std::filesystem::is_regular_file(rsa_privkey_filepath)) {
+                throw nkg::exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"RSA key file path doesn't point to a file.")
+                    .push_hint(u8"Are you sure the path you specified is correct?")
+                    .push_hint(fmt::format(u8"The path you specified: {}", nkg::cp_converter<-1, CP_UTF8>::convert(rsa_privkey_filepath.native())));
+            }
+
+            nkg::rsa_cipher cipher;
+
+            std::filesystem::path libcc_filepath = navicat_install_path / "libcc.dll";
+            nkg::resource_wrapper libcc_handle{ nkg::resource_traits::win32::file_handle{} };
+            nkg::resource_wrapper libcc_map_handle{ nkg::resource_traits::win32::generic_handle{} };
+            nkg::resource_wrapper libcc_map_view{ nkg::resource_traits::win32::map_view_ptr{} };
+            std::optional<nkg::image_interpreter> libcc_interpreter;
+
+            nkg::resource_wrapper solution0{ nkg::resource_traits::cxx_object_traits<nkg::patch_solution>{} };
+
+            //
+            // Open libcc.dll
+            //
+            libcc_handle.set(CreateFileW(libcc_filepath.native().c_str(), GENERIC_READ | GENERIC_WRITE, FILE_SHARE_READ, NULL, OPEN_EXISTING, 0, NULL));
+            if (libcc_handle.is_valid()) {
+                wprintf_s(L"[+] Try to open libcc.dll ... OK!\n");
+            } else {
+                if (GetLastError() == ERROR_FILE_NOT_FOUND) {
+                    wprintf_s(L"[-] Try to open libcc.dll ... NOT FOUND!\n");
+                } else {
+                    throw nkg::exceptions::win32_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), GetLastError(), u8"Failed to open libcc.dll");
+                }
+            }
+
+            if (libcc_handle.is_valid()) {
+                libcc_map_handle.set(CreateFileMapping(libcc_handle.get(), NULL, PAGE_READWRITE, 0, 0, NULL));
+                if (!libcc_map_handle.is_valid()) {
+                    throw nkg::exceptions::win32_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), GetLastError(), u8"CreateFileMapping failed.");
+                }
+
+                libcc_map_view.set(MapViewOfFile(libcc_map_handle.get(), FILE_MAP_ALL_ACCESS, 0, 0, 0));
+                if (!libcc_map_view.is_valid()) {
+                    throw nkg::exceptions::win32_exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), GetLastError(), u8"MapViewOfFile failed.");
+                }
+
+                libcc_interpreter = nkg::image_interpreter::parse(libcc_map_view.get(), true);
+
+                solution0.set(new nkg::patch_solution_since<16, 0, 7, 0>(libcc_interpreter.value()));
+            }
+
+            _putws(L"");
+
+            //
+            // find patch
+            //
+            if (!solution0->find_patch()) {
+                solution0.release();
+            }
+
+            _putws(L"");
+
+            //
+            // decide which solutions will be applied
+            //
+            select_patch_solutions(solution0);
+
+            if (!solution0.is_valid()) {
+                throw nkg::exception(NKG_CURRENT_SOURCE_FILE(), NKG_CURRENT_SOURCE_LINE(), u8"No patch solution is ready. Patch abort!")
+                    .push_hint(u8"Are you sure your navicat has not been patched/modified before?");
+            }
+
+            //
+            // load key
+            //
+            load_rsa_privkey(cipher, rsa_privkey_filepath, solution0.get());
+
+            _putws(L"");
+
+            if (dry_run) {
+                _putws(L"*******************************************************");
+                _putws(L"*               DRY-RUN MODE ENABLE!                  *");
+                _putws(L"*             NO PATCH WILL BE APPLIED!               *");
+                _putws(L"*******************************************************");
+            } else {
+                //
+                // save private key if not given
+                //
+                if (rsa_privkey_filepath.empty()) {
+                    cipher.export_private_key_file(u8"RegPrivateKey.pem");
+                }
+
+                //
+                // detecting backups
+                //
+                if (solution0.is_valid()) {
+                    detect_backup(libcc_filepath);
+                }
+
+                //
+                // make backup
+                //
+                if (solution0.is_valid()) {
+                    make_backup(libcc_filepath);
+                }
+
+                //
+                // make patch
+                // no way to go back from here :-)
+                //
+                if (solution0.is_valid()) {
+                    solution0->make_patch(cipher);
+                }
+
+                if (rsa_privkey_filepath.empty()) {
+                    wprintf_s(L"[*] New RSA-2048 private key has been saved to\n");
+                    wprintf_s(L"    %s\n", (std::filesystem::current_path() / L"RegPrivateKey.pem").c_str());
+                    wprintf_s(L"\n");
+                }
+
+                _putws(L"");
+
+                _putws(L"*******************************************************");
+                _putws(L"*           PATCH HAS BEEN DONE SUCCESSFULLY!         *");
+                _putws(L"*                  HAVE FUN AND ENJOY~                *");
+                _putws(L"*******************************************************");
+            }
+
+            return 0;
+        } catch (nkg::exception& e) {
+            wprintf_s(L"[-] %s:%d ->\n", nkg::cp_converter<CP_UTF8, -1>::convert(e.source_file()).c_str(), e.source_line());
+            wprintf_s(L"    %s\n", nkg::cp_converter<CP_UTF8, -1>::convert(e.custom_message()).c_str());
+            if (e.error_code_exists()) {
+                wprintf_s(L"    %s (0x%zx)\n", nkg::cp_converter<CP_UTF8, -1>::convert(e.error_string()).c_str(), e.error_code());
+            }
+
+            for (auto& hint : e.hints()) {
+                wprintf_s(L"    HINT: %s\n", nkg::cp_converter<CP_UTF8, -1>::convert(hint).c_str());
+            }
+
+            return -1;
+        }
+    } else {
+        help();
+        return -1;
+    }
+}
+
+#undef NKG_CURRENT_SOURCE_LINE
+#undef NKG_CURRENT_SOURCE_FILE