| 基于混沌动态S-Box的Hash函数 |
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| 引用本文： | 郭现峰,张家树.基于混沌动态S-Box的Hash函数[J].物理学报,2006,55(9):4442-4449. |
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| 作者姓名： | 郭现峰 张家树 |
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| 作者单位： | (1)西南交通大学信号与信息处理四川省重点实验室，成都 610031; (2)西南交通大学信号与信息处理四川省重点实验室，成都 610031;西南民族大学计算机科学与技术学院，成都 610041 |
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| 基金项目： | 国家自然科学基金;新世纪优秀人才支持计划;四川省青年基金;四川省应用基础研究计划;国防重点实验室基金 |
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| 摘 要： | 结合混沌系统与传统单向Hash函数设计方法的优点，提出了一种基于混沌动态S-Box的带秘密密钥的单向Hash函数构造方法.该方法用混沌S-Box替换和函数查找表来生成具有混沌特性的Hash摘要.与现有混沌Hash算法相比，新方案没有将原始数据直接参与混沌迭代，而是采用混沌动态S-Box替换来提高系统的实时性能.研究结果表明：该方法不仅有很好单向性、初值和密钥敏感性，且有较大的密钥空间，易于实现.
关键词：
Hash函数
混沌
S-Box
函数查找表
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| 关 键 词： | Hash函数 混沌 S-Box 函数查找表 |
| 文章编号： | 1000-3290/2006/55(09)/4442-08 |
| 收稿时间： | 11 4 2005 12:00AM |
| 修稿时间： | 2005-11-042005-12-26 |
Keyed one-way Hash function construction based on the chaotic dynamic S-Box |
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| Guo Xian-Feng,Zhang Jia-Shu.Keyed one-way Hash function construction based on the chaotic dynamic S-Box[J].Acta Physica Sinica,2006,55(9):4442-4449. |
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| Authors: | Guo Xian-Feng Zhang Jia-Shu |
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| Institution: | 1 Key Laboratory of Signal and Information Processing of Sichuan Province, Southwest Jiaotong University, Chengdu 610031, China; 2 College of Computer Science and Technology, Southwest University for Nationalities, Chengdu 610041, China |
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| Abstract: | This paper presents a novel keyed one-way Hash function based on a chaotic dynamic S-Box together with traditional one-way Hash function construction. The proposed approach can give a chaotic Hash value by means of the look up table of functions and chaotic dynamic S-Box. Compared with the existing chaotic Hash functions, this method improves computational performance of Hash system by using the chaotic dynamical S-Box substitution in place of iterating the original message directly in chaos system. Theoretical and experimental results show that the proposed method has strong one way property, large key space, sensitivity to initial conditions and chaotic system's parameters. |
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| Keywords: | S-Box |
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