关键词: 四维Hopfield神经网络, 超混沌, 高级加密标准（AES）加密算法

Abstract: By analyzing the current image encryption algorithm based on a class of artificial neural network in recent years, this paper proposes a new hyperchaotic image encryption algorithm based on 4D of Hopfield-type neural network and AES（Advanced Encryption Standard） encryption algorithm. Firstly, it defines four numbers and a average value of plaintext image pixel as key, hyperchaos sequence generated by Hopfield-type neural network as the goal keys of AES algorithm. Then, the plaintext image and hyperchaos sequence do exclusive or processing. Finally, the goal key is generated into the AES algorithm of triple encryption cipher. The simulation results show that the algorithm can effectively combine the advantages of two algorithms, achieving good encryption effect.

Key words: 4D of Hopfield-type neural network, hyperchaotic, Advanced Encryption Standard（AES） encryption algorithm