Steganography using STEGHIDE

Guide to Steghide Tool

In this article, we’ll learn about Steghide. There are various steganography tools available but the part that differentiates it is that it uses a variety of algorithms to encrypt the data. Moreover, Steghide supports to hide data behind any image(jpg/jpeg/png/gif/bmp), audio (mp3/wav), excel, etc.

Introduction to Steganography

In digital steganography, electronic communications may incorporate steganographic coding inside of a transport layer, such as a document file, picture file, program or convention. Sender can begin with a harmless picture and make few alterations to it in order to hide data, so that, this alteration goes unnoticed for someone who is not particularly seeking out for it.

Features

Compression of embedded data

BMP, GIF and JPG supported

Encryption of embedded data

Decryption via password

Uses various algorithms for encryption

STEP 1: Open your terminal and type the following command to download Steghide

apt-get install steghide

For help :

steghide --help

STEP 2: Embedding Data in The Image

Here I have two files, a .txt file and a .jpeg file. Our aim is to hide the text file behind the jpeg image.

steghide embed -ef <txt filename> -cf <media filename>

After this you may delete the text file as it is already hidden now behind the image. Now in the next step we will extract back the text file from image file.

STEP 3: Extraction of Data Via Steghide

Open terminal and write the following command

steghide extract -sf <media filename>

Provide the password that u provided before to extract

To get the details of Image enter the following command:

steghide info <media filename>

Compression Mode

Now if we want to compress text file before hiding it then we would use the following command. The compression level can vary from 1 to 9. The first level gives you speed to compress whereas, at 9th level, it will provide you with the best compression techniques.

steghide embed -ef <txt filename> -cf <media filename> -z 2

Encrypting Algorithms

We can encrypt the data that we are hiding by using encryption techniques. And this can be easily achieved by just using the following command :

steghide embed -ef <txt filename> -cf <media filename> -e <algorithm name>

For Windows please click the link below to download :

https://sourceforge.net/projects/steghideui/

Reviews and Comments will be appreciated. Thanks ☺

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