FCS_PRACTICAL_3

Steghide is a popular open-source command-line tool used for hiding data within other files (steganography) in a secure manner. Its primary purpose is to embed secret messages or files within image or audio files without visibly altering the original file's appearance or functionality. Steghide supports various encryption algorithms to ensure the confidentiality of the hidden data.

Here's a brief overview of how Steghide works and some basic commands:

Installation:

On Linux, you can typically install Steghide using your distribution's package manager.
For example, on Debian-based systems, you can use:
sudo apt-get install steghide

Basic Usage:

I) To embed data into an image or audio file:

steghide embed -ef <file-to-embed> -cf <cover-file> -sf <output-file>

<file-to-embed>: The file you want to hide.
<cover-file>: The image or audio file in which you want to hide the data.
<output-file>: The resulting file containing the hidden data.

II) To extract the hidden data from a file:

steghide extract -sf <stego-file>

<stego-file>: The file containing the hidden data.

III) Encryption and Passwords:

Steghide allows you to use encryption to secure the hidden data. You can specify a passphrase during:

Embedding:

steghide embed -ef <file-to-embed> -cf <cover-file> -sf <output-file> -p <password>

Extraction:

steghide extract -sf <stego-file> -p <password>

IV) Additional Options:

Steghide provides various options for configuring compression, verbosity, and other parameters. You can explore these using the --help option:
steghide --help