Cryptanalysis of an Enhanced Spatiotemporal Chaotic Image/Video Cryptosystem
Eun‐Jun Yoon, Jeong-Woo Hong, Sang-Yoon Yoon, Dong-In Park, Myungjin Choi · EURASIP Journal on Advances in Signal Processing · 2011
Recently, an enhanced spatiotemporal chaotic image/video cryptosystem was proposed by Rhouma and Belghith. This paper demonstrates that the enhanced cryptosystem is not secure against the following three different classical types of attacks: chosen plaintext, chosen ciphertext, and known plaintext. In the three attacks, only a pair of (plaintext/ciphertext) was needed to totally break the cryptosystem.