Novel Hash Function Based on Coupled Chaotic Map Lattices  

作　　者：ZHEN Ping ZHAO Geng MIN Lequan LI Xiaodong 

机构地区：[1]School of Automation and Electrical Engineering, University of Science and Technology Beijing [2]Beijing Electronic Science and Technology Institute [3]School of Mathematics and Physics, University of Science and Technology Beijing

出　　处：《Chinese Journal of Electronics》2014年第4期836-841,共6页电子学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.61170037,No.61074192);University Doctor Subject Research Foundation of China(No.11280102)

摘　　要：Hash function has been widely used in cryptographic field. This paper proposes a Hash function based on complexly Coupled chaotic map latices(CCML).It is equipped with new features of parallel and flexible processing. Parallelism indicates that the algorithm can reach high level of efficiency and speed. Flexibility means the length of Hash function and message block processed each time can be easily changed to adapt to practical demand. Experimental results show that the Hash function is one-way, with high plaintext sensitivity, as well as its strong capability for confusion and diffusion, and collision resistance. In comparison with MD5 and another Hash function based on chaos, the proposed Hash function shows good performance.Hash function has been widely used in cryptographic field. This paper proposes a Hash function based on complexly Coupled chaotic map latices （CCML）. It is equipped with new features of parallel and flexible processing. Parallelism indicates that the algorithm can reach high level of efficiency and speed. Flexibility means the length of Hash function and message block processed each time can be easily changed to adapt to practical demand. Experimental results show that the Hash function is one-way, with high plaintext sensitivity, as well as its strong capability for confusion and diffusion, and collision resistance. In comparison with MD5 and another Hash function based on chaos, the proposed Hash function shows good performance.

关 键 词：Hash function PARALLELISM FLEXIBILITY Coupled chaotic map lattice. 

分 类 号：TN918.4[电子电信—通信与信息系统] O174[电子电信—信息与通信工程]