Macrypt

Macrypt is a modern, cross-platform GUI and CLI tool for secure file encryption and decryption. It supports AES-256-CBC and GPG (GnuPG) encryption methods and offers both graphical and command-line interfaces.

Features

• AES-256 encryption and decryption (using OpenSSL)
• GPG encryption and decryption (via embedded GnuPG executable)
• SHA and MD5 hash utilities
• GUI built with Qt 6, cross-platform support
• Modular design with separate controller classes (AESController, GPGController, HashController, KeyController)
• Lightweight CLI and GUI versions (For CLI usage, refer to the built executable help or future documentation)
• Supports Windows, macOS, and Linux

GUI Version

The GUI version of Macrypt supports file drag-and-drop, progress tracking, and log output. It includes dedicated tabs for AES, GPG, and hashing tools.

Build Instructions

General Steps (Linux / macOS / Windows)

Make sure you have Qt 6.x and CMake installed.

# 1. Create a build directory
mkdir build
cd build

# 2. Configure the project using CMake (Release type is recommended)
#    -DCMAKE_BUILD_TYPE=Release enables optimizations
cmake .. -DCMAKE_BUILD_TYPE=Release

# 3. Build the project
cmake --build .

# After building, the executable will usually be located in 'build/bin/' (or 'build/Release/' etc.)

CLI Usage

CLI functionality is integrated into the new build system. Check the compiled executable (e.g., macrypt.exe or macrypt) and its help message for the latest CLI usage.

Dependencies

• Qt 6.x
• OpenSSL 3.x
• GPG executable (bundled for portability)

Encryption Methods

Macrypt supports two cryptographic approaches:

1. Native AES file encryption using OpenSSL. This is a straightforward symmetric encryption implementation.
2. GPG-based decryption of .gpg files. GPG internally uses AES or other symmetric ciphers as part of the OpenPGP standard.

License

This project is licensed under the MIT License.

Bundled or Used Libraries:

• Qt – for GUI (Qt Widgets)
  License: LGPL v3

• OpenSSL – for cryptographic operations (e.g., AES), related files may be bundled in the licenses/ folder or compiled binaries
  License: Apache License 2.0

• GnuPG (gpg.exe) – for GPG decryption, bundled with the application
  License: GPL-3.0-or-later

• libgcrypt – used by GnuPG
  License: LGPL-2.1-or-later

Additional Notes:

If you redistribute bundled binaries (e.g., libcrypto-3.dll, gpg.exe, etc.), you are responsible for complying with each library’s license terms.

About The PenguinBay Software

Developed by The PenguinBay Software.
GitHub: @masato-ro