Steganography Tool (LSB with Optional XOR Encryption)

Purpose: This program allows users to embed and extract secret messages within BMP images using Least Significant Bit (LSB) steganography. Optionally, it applies simple XOR encryption for added security.

Features:

Uses LSB technique to hide messages in the pixel data of BMP images.

Supports XOR-based encryption/decryption with a custom key.

Automatically creates a new output.bmp with the embedded message.

Easy-to-use CLI for selecting between embedding and extraction.

Usage Instructions:

Run the program.

Enter the path to a valid .bmp image.

Choose whether to insert (I) or extract (L) a message.

Provide a cipher key (type 0 to skip encryption).

For insertion: input your message; for extraction: view the decoded message.