International Journal of Computer Applications
The Digital Rights Management (DRM) techniques are very important in the fields of multimedia security. The major areas of multimedia data security include secrecy, ownership protection and traitor tracing. Even though, a number of encryption techniques were developed for multimedia encryption, most of them are vulnerable to several types of attacks. Hence, an encryption system having better security with minimal level of system complexity is an important requirement in multimedia security. In this paper, the cryptanalysis of two arithmetic coding based encryption techniques (Randomized Arithmetic Coding (RAC) and Chaotic Binary Arithmetic Coding (CBAC)) were proposed and proved that these schemes are vulnerable to known-plaintext attack.