OpenStego is a free Steganography solution.

Steganography is the science of hiding secret message inside another larger and harmless looking message. This is one notch above regular cryptography; which just obscures the original message. Steganography tries to conceal the fact that there is a message in the first place. Steganographic message often appears to be something else than the original (secret) message, like a picture, sound, larger text, etc.

Features

• OpenStego is written in pure Java and should run on all platforms supported by java. It has been tested on MS Windows and Linux, but should not have any problem on other platforms too. Please report bugs if you find any.


• It supports password-based encryption of data for additional layer of security. DES algorithm is used for data encryption, along with MD5 hashing to derive the DES key from the password provided.


• Currently, only 24 bpp images are supported. Support for additional image formats (like BMP, TIF, etc.) could be added by installing Java Advanced Imaging (JAI).


• It supports generation of random images containing noise to be used as cover file. The size of the generated random image is the minimum possible size required to embed the given data.