CPABE-AC17-Scheme

Ciphertext Policy Attribute Based Encryption - AC17 Scheme Library for C/C++ in Windows

Prerequisites

• CryptoPP Library
• CP-ABE AC17 Scheme
• Rabe-ffi

Building for Windows

1. Clone the repository:

   git clone https://github.com/WanThinnn/CPABE-AC17-Scheme.git

2. Navigate to the project directory:

   cd CPABE-AC17-Scheme/cpp-sources
   code . #for open projects Visual Studio Code

3. Configure tasks.json to build the project using cl.exe:
   • Create or open the .vscode folder in your project directory.
   • Create a tasks.json file inside the .vscode folder with the following content:

{
  "version": "2.0.0",
  "tasks": [
      {
          "type": "shell",
          "label": "C/C++: cl.exe build executable",
          "command": "cl.exe",
          "args": [
              "/MD",
              "/GS",
              "/O2",
              "/Zi",
              "/EHsc",
              "/Fe:${fileDirname}\\${fileBasenameNoExtension}.exe",
              "${file}",
              "/I${workspaceFolder}\\include",
              "/link",
              "/LIBPATH:${workspaceFolder}\\lib\\static-lib",
              "librabe_ffi.lib", // Rabe FFI Library
              "cryptlib.lib", //CryptoPP890 Library
              "bcrypt.lib", // Provides cryptographic functions (Windows system libraries)
              "advapi32.lib", // Provides advanced API services including security and registry functions (Windows system libraries)
              "ntdll.lib", // Windows system libraries
              "/MACHINE:X64"
          ],
          "problemMatcher": ["$msCompile"],
          "group": {
              "kind": "build",
              "isDefault": true
          },
          "detail": "Task to build executable."
      },
      {
          "type": "shell",
          "label": "C/C++: cl.exe build static library",
          "command": "cl.exe",
          "args": [
              "/MD",  // Use static runtime
              "/GS",
              "/O2",
              "/Zi",
              "/EHsc",
              "/c",  // Compile without linking
              "${file}",
              "/I${workspaceFolder}\\include"
          ],
          "problemMatcher": ["$msCompile"],
          "group": {
              "kind": "build",
              "isDefault": false
          },
          "detail": "Task to build static library."
      },
      {
          "type": "shell",
          "label": "C/C++: lib.exe create static library",
          "command": "lib.exe",
          "args": [
              "/OUT:${fileDirname}\\${fileBasenameNoExtension}.lib",
              "${fileDirname}\\${fileBasenameNoExtension}.obj",
              "/LIBPATH:${workspaceFolder}\\lib\\static-lib",
              "librabe_ffi.lib",
              "cryptlib.lib",
              "bcrypt.lib",
              "advapi32.lib",
              "ntdll.lib"
          ],
          "problemMatcher": ["$msCompile"],
          "group": {
              "kind": "build",
              "isDefault": false
          },
          "detail": "Task to create static library."
      },
      {
          "type": "shell",
          "label": "C/C++: cl.exe build dynamic linking library (DLL)",
          "command": "cl.exe",
          "args": [
              "/MD",
              "/GS",
              "/O2",
              "/Zi",
              "/EHsc",
              "/LD",  // for build DLL
              "/DBUILD_DLL", // define macro BUILD_DLL
              "/Fe:${fileDirname}\\${fileBasenameNoExtension}.dll",
              "${file}",
              "/I${workspaceFolder}\\include",
              "/link",
              "/LIBPATH:${workspaceFolder}\\lib\\static-lib",
              "librabe_ffi.lib", // Rabe FFI Library
              "cryptlib.lib", //CryptoPP890 Library
              "bcrypt.lib", // Provides cryptographic functions (Windows system libraries)
              "advapi32.lib", // Provides advanced API services including security and registry functions (Windows system libraries)
              "ntdll.lib", // Windows system libraries
              "/MACHINE:X64"
          ],
          "problemMatcher": ["$msCompile"],
          "group": {
              "kind": "build",
              "isDefault": false
          },
          "detail": "C/C++: cl.exe build dynamic linking library (DLL)"
      },
  ]
}

4. Build the project:
   • Open Visual Studio Code and open your project.
   • Press Ctrl+Shift+B to run the configured build task.
   • If everything is configured correctly, your program will be compiled using cl.exe.

Usage

Using the Executable

To use the pre-built executable, navigate to the CPABE-AC17-Scheme/demo directory and run the ac17_cli_app.exe file:

cd CPABE-AC17-Scheme/demo
.\ac17_cli_app.exe

The usage of the executable is as follows:

Usage: ac17_cli_app.exe [setup|genkey|encrypt|decrypt]
Usage: ac17_cli_app.exe setup <path_to_save_file> <format:HEX/Base64/JsonText>
Usage: ac17_cli_app.exe genkey <public_key_file> <master_key_file> <attributes> <private_key_file> <format:HEX/Base64/JsonText>
Usage: ac17_cli_app.exe encrypt <public_key_file> <plaintext_file> <policy> <ciphertext_file> <format:HEX/Base64/JsonText>
Usage: ac17_cli_app.exe decrypt <public_key_file> <private_key_file> <ciphertext_file> <recovertext_file> <format:HEX/Base64/JsonText>

Example commands:

.\ac17_cli_app.exe setup "test_case" Base64
.\ac17_cli_app.exe genkey "test_case/public_key.key" "test_case/master_key.key" "A B C" "test_case/private_key.key" Base64
.\ac17_cli_app.exe encrypt "test_case/public_key.key" "test_case/plaintext.txt" "((A and C) or E)" "test_case/ciphertext.txt" Base64
.\ac17_cli_app.exe decrypt "test_case/public_key.key" "test_case/private_key.key" "test_case/ciphertext.txt" "test_case/recovertext.txt" Base64

Integrating the Library

After building the library, you can integrate it into any program on Windows. Here are the steps to include the library in your project. Please go to python-sources folder to see more.

Acknowledgements

Special thanks to Aya0wind for the Rabe-ffi project and the CryptoPP Library for helping me build this library.

License

This project is open-source and available for anyone to use, modify, and distribute. We encourage you to clone, fork, and contribute to this project to help improve and expand its capabilities. By contributing to this project, you agree that your contributions will be available under the same open terms.