关键词: 五维细胞神经网络, AES加密算法, 超混沌, 图像加密

Abstract: By analyzing the application of image encryption algorithm based on chaotic system in recent years, a hyperchaotic image encryption algorithm combining five-dimensional cellular neural network and AES（Advanced Encryption Standard） encryption algorithm is proposed. This method first defines five numbers and extracts a hyperchaotic sequence generated by the cellular neural network as a key for the parameters associated with the plaintext pixel values as the target key of the AES encryption algorithm. Then, the plaintext is carried out with the target key Exclusive OR processing. Finally, the target key is substituted into the algorithm for several times AES encryption algorithm to encrypt the ciphertext. Simulation results show that the proposed algorithm can resist resistance attack and statistical characteristic analysis, and it can effectively resist plain attack and achieve good encryption effect.

Key words: 5D of cellular neural network, Advanced Encryption Standard（AES）, hyperchaotic, image encryption