pableeee / steg

steg

steg is a steganography tool written in Go. Using an image as its medium, it encodes a (smaller) file into a new image, which should resemble the original medium, being virtually identical to the eye.

Features

• PNG Support: Encode data within PNG images.
• Encryption: Encrypt the encoded information using AES with CTR stream encryption.

Installation

To install steg, ensure you have Go installed and run:

go get github.com/pableeee/steg

Usage

Encode

To encode a file into an image:

steg encode -i input.png -o output.png -f secret.txt -p password

Options

• -i or --input_image: Path to the input image.
• -o or --output_image: Path to the output image.
• -f or --input_file: Path to the file to be encoded.
• -p or --password: Password for encrypting/decrypting the hidden data.

Decode

To decode a file from an image:

steg decode -i input.png -o output.png -p password

Options

• -i or --input_image: Path to the input image.
• -o or --output_file: Path to the output image.
• -p or --password: Password for encrypting/decrypting the hidden data.

Example

Here's a live example of steg in action:

Roadmap

• Support for Other Image Types: Extend support to JPEG, BMP, and GIF formats.
• Enhanced Security: Improve the usage of nonce for the stream cipher, as it currently uses a zero value.