Chosen Plaintext Attack for Hyper-chaotic System Image Encryption Algorithm
Bin Yu · Jisuanji gongcheng · 2012
Hyper-chaotic system image encryption algorithm HYPER_HIE uses elementary transformation and exjunction to encrypt,so it is difficult to resist various attacks.Aiming at three steps of HYPER_HIE including key generation,pixel scrambling,image diffusion and confusion,this paper chooses three kinds of plaintext matrixes to do chosen plaintext attack without knowing encryption key.An instance shows that the attack method can decode ciphertext with low computing costs.