File Encryption Tool

A cross-platform file encryption tool written in Rust. Encrypts files using DES and packages them as self-extracting executables — no runtime dependencies required on the target machine.

Features

• Native GUI built with egui/eframe — no Electron, no web stack
• Self-extracting encrypted binaries: the output file is a standalone executable that decrypts itself
• DES encryption with password protection
• CLI tool for scripting and automation
• Cross-platform: macOS, Linux, Windows

Platform Support

Platform	Architecture	GUI	CLI Stub
macOS	ARM64 (Apple Silicon)	Yes	task_unix
macOS	x86_64 (Intel)	Yes	task_unix
Linux	x86_64	Yes	task_linux
Linux	ARM64	Yes	task_linux_arm64
Windows	x86_64	Yes	task.exe

Installation

Download the latest release from the GitHub Releases page. Each release contains a platform-specific package with the GUI binary and all CLI stubs in a bin/ subdirectory.

Usage

GUI

Run file-encryption-gui. The interface has two modes:

• Encrypt: select a file, choose the target platform, set a password, and encrypt
• Decrypt: select an encrypted file, enter the password, and decrypt

window style

CLI

# Encrypt a file
./bin/task_unix e <password> <input_file> <output_dir> <platform_id>

Platform IDs:

ID	Platform
1	macOS
2	Windows x86_64
3	Linux x86_64
4	Linux ARM64

Example:

./bin/task_unix e mypassword secret.pdf ./output/ 1

Decrypt (self-extracting)

The encrypted output is a standalone executable. To decrypt, just run it:

./encrypted_file
# Enter password when prompted

Building from Source

Prerequisites: Rust toolchain via rustup

# Build GUI
cargo build --release --bin file-encryption-gui

# Build CLI
cargo build --release --bin task

# Full cross-platform build
bash build_all.sh

Cross-compilation: Linux target (from macOS)

brew tap SergioBenitez/osxct
brew install x86_64-unknown-linux-gnu

Add to ~/.cargo/config.toml:

[target.x86_64-unknown-linux-gnu]
linker = "x86_64-unknown-linux-gnu-gcc"

Cross-compilation: Windows target (from macOS)

sudo port install x86_64-w64-mingw32-gcc
rustup target add x86_64-pc-windows-gnu
cp /opt/local/x86_64-w64-mingw32/lib/* \
  ~/.rustup/toolchains/nightly-x86_64-apple-darwin/lib/rustlib/x86_64-pc-windows-gnu/lib/
cargo build --target x86_64-pc-windows-gnu

Project Structure

src/
├── lib.rs          # Library entry point
├── crypto.rs       # Core encryption/decryption logic
└── bin/
    ├── cli.rs      # CLI binary
    └── gui.rs      # Native GUI (egui/eframe)

License

See LICENSE.