A quantum-resistant steganography tool that hides messages in images using post-quantum cryptography. Protects your communications against future quantum computers.

• Quantum-Safe Encryption - Uses MLKEM-1024 (Kyber) algorithm selected by NIST for standardization
• Steganography - Conceals encrypted messages within ordinary images using LSB technique
• Key Management - Generate, import, export, and manage quantum-resistant keys
• QR Code Support - Share public keys via QR codes
• Modern Interface - Clean, intuitive UI built with CustomTkinter
• Drag & Drop - Easy file handling with drag and drop support

Kyber employs the following security measures:

• Post-Quantum Protection - Resistant to attacks from quantum computers
• Krypton Cipher - Advanced symmetric encryption alongside Kyber KEM
• Argon2 KDF - Secure key derivation with high memory cost parameters
• LSB Steganography - Visually undetectable message hiding

• Python 3.8 or higher

1. Clone the repository:

git clone https://github.com/reschjonas/QuantHide.git
cd kyber

2. Install dependencies:

pip install quantcrypt customtkinter pillow numpy pyperclip qrcode

3. Run the application:

python main.py

1. Go to the Hide tab
2. Select a carrier image
3. Enter your message
4. Choose a recipient's public key
5. Click "Hide Message"

1. Go to the Reveal tab
2. Select a stego image
3. Select your private key
4. Click "Reveal Message"

1. Go to the Keys tab
2. Generate a new keypair with a unique name
3. Export your public key to share with others
4. Import public keys received from your contacts

Kyber combines post-quantum cryptography with steganography:

1. Key Encapsulation - The recipient's public key is used to encapsulate a shared secret
2. Symmetric Encryption - The message is encrypted using the Krypton cipher
3. Steganography - The encrypted data is hidden in the least significant bits of image pixels
4. Decryption - Only the recipient with the matching private key can extract and decrypt the message

• QR Code Key Sharing - Generate QR codes from public keys for easy sharing
• Clipboard Support - Copy/paste keys and revealed messages
• Drag and Drop - Easily load images by dragging them onto the application

Contributions are welcome! Please feel free to submit a Pull Request.

This project is licensed under the MIT License - see the LICENSE file for details.

• QuantCrypt - Post-quantum cryptography library
• CustomTkinter - Modern UI library for Tkinter
• NIST - For their work on post-quantum cryptography standardization