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基于SCS-PRBG的数字流密码 被引量:4

Digital Stream Encrypt Based on SCS-PRBG
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摘要 针对单混沌系统可能会出现的动力学特性退化的缺陷,基于多混沌系统和开关技术,提出开关控制混沌伪随机比特发生器(Switch Controller Chaos&Pseudo Random Bit Generator,简称SCS-PRBG).通过对SCS-PRBG密钥流及其性能的理论分析,表明该数字流密码具有较好的随机性与安全性,并且在硬件并行计算的环境下可以极大地提高加密速度.实验研究表明本加密算法具有较高的安全性. Regarding to degeneration of dynamics characteristics in a traditional single chaotic system, we propose a switch controller chaos & pseudo random bit generator (SCS-PRBG) based on multiple chaotic systems and switch control. Theoretic analysis of random key stream and its performance show that the key stream has better randomicity and security. With parallel computation, the speed of encryption is improved. The expfiment indicates better security of this algorithm.
出处 《计算物理》 EI CSCD 北大核心 2007年第4期494-498,共5页 Chinese Journal of Computational Physics
基金 国家自然科学基金(批准号:60573172) 辽宁省教育厅高等学校科学技术研究计划(批准号:20040081)资助项目
关键词 多混沌系统 开关控制 伪随机 密钥流 安全性 multiple chaotic systems switch control pseudo random key stream security
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参考文献17

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