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1. 中国科学院研究生院信息安全国家重点实验室
2. 中国科学院研究生院信息安全国家重点实验室,北京,100049
3. 中国科学院软件研究所
4. ,北京,100080
纸质出版日期:2007
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马卫局, 冯登国. 钟控密钥流生成器及其密码性能[J]. 通信学报, 2007,(7):42-47.
MA Wei-ju1, FENG Deng-guo1. On a clock-controlled keystream generator and its cryptographic properties[J]. 2007, (7): 42-47.
马卫局, 冯登国. 钟控密钥流生成器及其密码性能[J]. 通信学报, 2007,(7):42-47. DOI:
MA Wei-ju1, FENG Deng-guo1. On a clock-controlled keystream generator and its cryptographic properties[J]. 2007, (7): 42-47. DOI:
提出了一种新的钟控密钥流生成器
由3个移位寄存器组成:两个被钟控的线性反馈移位寄存器A和B
一个提供钟控信息的非线性反馈移位寄存器C。设A、B和C的长度分别为l1、l2和l3。移位寄存器A和B的钟控信息由从移位寄存器C选取的两个比特串提供
移位的次数分别是两个比特串的汉明重量。研究了该生成器的周期、线性复杂度和k错线性复杂度
分析了这种密钥流生成器的安全性。
A new clock-controlled keystream generator was proposed
which was composed of three shift registers: two clock-controlled linear feedback shift registers A
B
and one clock-controlling nonlinear feedback shift register C.Let l1
l2 and l3 denote the length of A
B and C
respectively.The clock-control information is from two bit strings of feedback shift register C
and the times A and B shift are according to the Hamming weights of the two strings
respectively.The period
the linear complexity and the k error linear complexity of the keystream generator are studied
and its security was analyzed.
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