A keyed hash function based on the modified coupled chaotic map lattice

被引：9
|
作者：
Li, Da [1 ]
Hu, Gang [2 ]
Wang, Shihong [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, Sch Sci, Beijing 100876, Peoples R China
[2] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China
来源：
COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION | 2012年 / 17卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Coupled map lattice; Spatiotemporal chaos; Hash function;
D O I：
10.1016/j.cnsns.2011.10.030
中图分类号：
O29 [应用数学];
学科分类号：
070104 ;
摘要：
In this paper, we propose a dedicated keyed hash algorithm based on the modified coupled chaotic map lattice. By using the nearest and long distance couplings, both the key and the message as the parameters of the coupled map lattice, the expansion key and the nonlinear transformation, the system has enough confusion and diffusion rate between the message and the key. The structure of the system provides strong collision resistance and high performance efficiency. Simulation results show that the system has a uniform and random distribution of hash value, and fast performance. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码：2579 / 2587
页数：9
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