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基于分段线性映射与代数运算的混沌密码算法
  • 期刊名称：电子学报, Vol.36, No.8, pp.1490-1494, 2008.
  • 时间：0
  • 分类：TP309.7[自动化与计算机技术—计算机系统结构;自动化与计算机技术—计算机科学与技术]
  • 作者机构：[1]重庆教育学院计算机与现代教育技术系,重庆400067
  • 相关基金：基金项目：国家自然科学基金（No.60573047）;重庆市教委（No.kj061501）;重庆市科委自然科学基金（N0.CSTC2006BB2254）
  • 相关项目：基于混沌密码学的安全JPEG2000图像编码系统的设计和实现
关键词： 混沌映射, 分组密码, 置换, 群论, chaotic map, block cipher, permutation, group theory
中文摘要：

在本文提出的新的分组密码系统中，通过迭代一个混沌分段线性映射得到的十进制序列的数字位按照算法1构造了一个双射函数g（·）；通过比较两个混沌分段线性映射产生的十进制序列的对应项得到54n比特噪声向量。经过群上的三种运算（异或运算、模乘运算和模加运算）与由双射函数确定的置换运算交替作用（共8轮）在54n比特的明文上得到54n比特密文。最后，从理论和仿真实验两个方面对算法的性能进行了分析。

英文摘要：

A sequence of decimal numbers generated the chaotic piecewise linear map is used to define a bijection map;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;three operations（bit-by-bit exclusive OR,module rnulfiplicafion, module addition）in the group and the permutation determined by the bijection map are alternately applied on plaintext with block length 64n bits to prodace ciphertext blocks of the same length, lastly, the performances were analyzed from the theory and experiments.

同期刊论文项目
基于混沌密码学的安全JPEG2000图像编码系统的设计和实现
期刊论文 68
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