A new block cipher based on chaotic map and group theory

被引：5

作者：

Yang, Huaqian ^{[1
,2
]}

Liao, Xiaofeng ^{[1
]}

Wong, Kwok-wo ^{[3
]}

Zhang, Wei ^{[2
]}

Wei, Pengcheng ^{[1
,2
]}

机构：

[1] Chongqing Univ, Dept Comp Sci & Engn, Chongqing 400044, Peoples R China

[2] Chongqing Educ Coll, Dept Comp & Modern Educ, Chongqing 400067, Peoples R China

[3] City Univ Hong Kong, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China

来源：

CHAOS SOLITONS & FRACTALS | 2009年 / 40卷 / 01期

基金：

中国国家自然科学基金;

关键词：

RANDOM NUMBER GENERATORS;

D O I：

10.1016/j.chaos.2007.07.056

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

Based oil the study of some existing chaotic encryption algorithms, a new block cipher is proposed. In the proposed cipher, two sequences of decimal numbers individually generated by two chaotic piecewise linear maps are used to determine the noise vectors by comparing the element of the two sequences. Then a sequence of decimal numbers is used to define a bijection map. The modular multiplication operation in the group Z(28+1)* and permutations are alternately applied on plaintext with block length Of multiples of 64 bits to produce ciphertext blocks of the same length. Analysis show that the proposed block cipher does not suffer from the flaws of pure chaotic cryptosystems. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：50 / 59

页数：10

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