stegify

stegify is a simple command line tool for embedding encrypted messages or files into images using AES encryption. It allows secure communication by hiding data in plain sight, using the concept of Steganography.

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Features:

• Embed encrypted messages or small files into images (PNG and BMP formats only).
• Secure decryption with AES encryption, using a password-derived key.
• Support for both message and file embedding.
• Supports password-based key derivation via PBKDF2.

Installation:

• Clone the repository:

  git clone https://github.com/achntj/stegify.git
  cd stegify
  pip install Pillow pycryptodome

Usage:

Embed a message:

python stego.py embed --image input.png --message "This is a secret message" --key mySecretPassword --output output.png

Extract a message:

python stego.py extract --image output.png --key mySecretPassword

Embed a file:

python stego.py embed --image input.png --file secret.txt --key mySecretPassword --output output.png

Extract to a file:

python stego.py extract --image output.png --key mySecretPassword --output_file extracted_secret.txt

Options:

• --image: Path to the input or output image.
• --message: Message to embed (use with --image).
• --file: File to embed (use with --image).
• --key: Password used for encryption/decryption (PBKDF2-derived AES key).
• --output: Path for the output image after embedding the message.
• --output_file: Path to save the extracted file.

TODO

• Data compression before encryption and decompression after extraction.