摘要
该文在Shannon关于混乱理论的指导下,在混沌吸引子的多维空间中,利用混沌运动的初值敏感性和长期不可预测性,提出了一种生成密钥序列的新方案,详细地论述了密钥序列的生成过程;计算了密钥空间的大小;对所生成的密钥序列作了局部随机性检验和复杂度分析。结果表明,所生成的密钥序列适合数据加密。
Directed by Shannon＇s disorder theory, this paper present a scheme for generating key sequences by using the sensitivity to initial values and the long time unpredictability of chaos motion. The generating scheme and process of the key sequence are described in detail. The size of the key space, randomness testing and linear complexity testing are carefully studied by computer simulation. The results indicate that the key sequences satisfy the requirements of data encrypting.
出处
《电子与信息学报》
EI
CSCD
北大核心
2006年第12期2351-2354,共4页
Journal of Electronics & Information Technology
基金
西南师范大学青年基金(swnuq2004025)资助课题
关键词
保密通信
混沌
M序列
密钥序列
Secure communications, Chaos, m sequence, Key sequence
