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Huge amount of digital visual data are shared on different media and exchanged over various sorts of networks nowadays. Often, these visual data contain confidential information. As a consequence, techniques are required to provide security functionalities like privacy, integrity, or authentication especially suited for the data type. A relatively new field, denoted" Image Encryption", is aiming towards this emerging technologies and applications.In order to fulfill the requirements, many encryption techniques have been proposed and analyzed as possible solution, but they do not ...

Reported in German newspaper by Sean Gallagher in 2012 that, digital steganography hides files in plain sight, concealed in image and media files. When a suspected al-Qaeda member was arrested in Berlin in May of 2011, he was found with a Memory card with a password-protected folder and the files with in it were hidden. But, as the, computer forensics experts from the German Federal Criminal Police (BKA) claim to have eventually uncovered its contents-what appeared to be a pornographic video called " KickAss." Within that video, they discovered 141 separate text files, containing what...