stegoAES

A command-line interface (CLI) tool for performing steganography operations, such as hiding and extracting AES encrypted messages within images.

Features

• Hide encrypted messages within images
• Extract hidden messages from images
• Hide files inside images
• As of now, it only supports PNG file types

Installation

To install the Steganography CLI tool, run this command:

npm i -g stegoaes

Usage

Hiding a Message

To hide a message within an image, use the following command:

stegoaes -s <your message> -p <optional password> <file> -o <optional output file>

Your secret will automatically be encrypted with AES256 if a password is provided

Hiding a File

To hide a file within an image, use the following command:

stegoaes -f <file to hide> -p <optional password> <file>

The host file must be atleast 8 times bigger than the file you are going to hide

Extracting a Message

To extract a hidden message from an image, use the following command:

stegoaes -p <optional password> <file>

If there's a file hidden inside, it will automatically extract

Steganography

Original image:

Image with a secret message: