A block encryption algorithm based on dynamic sequences of multiple chaotic systems

被引：69

作者：

Wang Xing-yuan ^{[1
]}

Yu Qing ^{[1
]}

机构：

[1] Dalian Univ Technol, Sch Elect & Informat Engn, Dalian 116024, Peoples R China

来源：

COMMUNICATIONS IN NONLINEAR SCIENCE AND NUMERICAL SIMULATION | 2009年 / 14卷 / 02期

关键词：

Chaos; Multiple chaotic systems; Dynamic sequences; Block encryption; CRYPTOGRAPHY; SCHEME;

D O I：

10.1016/j.cnsns.2007.10.011

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

A block encryption algorithm using dynamic sequences generated by multiple chaotic systems is proposed in this paper. In this algorithm, several one-dimension chaotic maps generate pseudo-random sequences, which are independent and approximately uniform. After a series of transformations, the sequences constitute a new pseudo-random sequence uniformly distributing in the value space, which covers the plaintext by executing Exclusive-OR and shifting operations some rounds to form the cipher. This algorithm makes the pseudo-random sequence possess more concealment and noise like characteristic, and overcomes the periodic malpractice caused by the computer precision and single chaotic system. Simulation results show that the algorithm is efficient and useable for the security of communication system. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：574 / 581

页数：8

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