My first Rust application! A simple but powerful file encryption/decryption tool.

HIYC File Locker lets you encrypt and decrypt any type of file using a password. Whether it's a document, image, video, or any other file type, this tool can lock it with a password and unlock it later.

• Lock Files: Encrypt any file with a password (creates a .locked file)
• Unlock Files: Decrypt locked files back to their original form
• Show/Hide Password: Toggle password visibility while typing
• Password Strength Meter: Real-time feedback on password strength (Weak/Medium/Strong)
• Reveal in Folder: Quickly open the file location in Finder/Explorer
• Beautiful GUI: Clean, user-friendly interface built with egui

1. Click Browse to select a file (or type the file path)
2. Enter a strong password
3. Click Lock File
4. Your encrypted file is saved as filename.ext.locked

1. Select the .locked file you want to decrypt
2. Enter the same password you used to lock it
3. Click Unlock File
4. Your original file is restored!

• Remember your password! There's no way to recover (unless you can decrypt) it if you forget
• Use strong passwords (10+ characters with numbers and symbols)
• The original file remains unchanged when locking (you get a new .locked file)
• When unlocking, the .locked extension is automatically removed

Make sure you have Rust installed, then:

# Navigate to the project directory

cd hie


# Build and run the application
cargo run



# Or build for release (faster)
cargo build --release
./target/release/hieie

• Language: Rust
• GUI Framework: egui with eframe
• File Dialog: rfd for native file picker
• Encryption: XOR cipher (simple encryption for learning purposes)

This project uses XOR encryption for educational purposes. For real-world security needs, consider using proper cryptographic libraries like:

• age for file encryption
• aes-gcm with argon2 for password-based encryption

This is my very first Rust application, created to learn a new programming language, i.e. rust, and working with GUI, Encryption using cryptography, working with different OS in RUST.

Feel free to use, modify, and learn from this code!