| 基于超混沌序列的分组密码算法及其应用 |
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| 引用本文： | 权安静,蒋国平,左涛,陈婷.基于超混沌序列的分组密码算法及其应用[J].南京邮电大学学报(自然科学版),2005,25(4):80-84. |
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| 作者姓名： | 权安静 蒋国平 左涛 陈婷 |
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| 作者单位： | 南京邮电大学,电子工程系,江苏 南京,210003 |
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| 基金项目： | 江苏省高校青蓝工程计划(JS200407)，江苏省高校自然科学基金(04KJA517092)重点资助项目 |
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| 摘 要： | 利用混沌现象的“蝴蝶”效应和难以预测性等特点,提出利用超混沌序列改进分组密码算法的思想,实现基于超混沌序列的DES(数据加密标准)和AES(高级加密标准)算法,给出改进算法用于加密文本和图像数据的应用实例,分析比较改进后的算法和传统分组密码算法在安全性和抗破译性方面的性能。研究表明,分组密码算法和超混沌序列技术结合能够进一步提高系统的安全性和抗破译性能。
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| 关 键 词： | 超混沌序列 分组密码算法 加密 密钥 |
| 文章编号： | 1000-1972(2005)04-0080-05 |
| 修稿时间： | 2004年11月2日 |
Hyperchaotic Sequences Based Block Encryption Ciphers and Its Application |
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| QUAN An-jing,JIANG Guo-ping,Zuo Tao,CHEN Ting.Hyperchaotic Sequences Based Block Encryption Ciphers and Its Application[J].Journal of Nanjing University of Posts and Telecommunications,2005,25(4):80-84. |
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| Authors: | QUAN An-jing JIANG Guo-ping Zuo Tao CHEN Ting |
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| Institution: | QUAN An-jing,JIANG Guo-ping,ZUO Tao,CHEN TingDepartment of Electronic Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210003,China |
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| Abstract: | By use of the butterfly effect and hard-to-predict characteristics of hyperchaos,a new idea of improving the block encryption ciphers based on hyperchaotic sequence is proposed.DES(Data Encryption Standard) and AES(Advanced Eneryption Standard) algorithms are implemented in this way. Examples are given on the application of the improved algorithms to the image and text encryption.comparative analysis is made between the improved and conventional algorithms in terms of the security and anti-attack ability.The study has shown that the integration of block encryption cipher and hyperchaotic sequence technology can effectively enhance the security and anti-attack performance of the system. |
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| Keywords: | hyperchaotic sequences block encryption ciphers encryption secret-key |
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