基于细胞神经网络的伪随机数生成方法

doi:10.11959/j.issn.1000-436x.2016252

Abstract

Abstract:

To overcome the degradation characteristics of chaos system due to finite precision effect and improve the sta-tistical performance of the random number,a new method based on 6th-order cellular neural network (CNN) was given to construct a 64-bit pseudo random number generation (PRNG).In the method,the input and output data in every iteration of 6th-order CNN were controlled to improved the performance of the random number affected by chaos degradation.Then the data were XORed with a variable parameter and the random sequences generated by a Logistic map,by which the repeat of generated sequences was avoided,and the period of output sequences and the key space were expended.Be-sides,the new method was easy to be realized in the software and could generate 64 bit random numbers every time,thus has a high generating efficiency.Test results show that the generated random numbers can pass the statistical test suite NIST SP800-22 completely and thus has good randomness.The method can be applied in secure communication and other fields of information security.

Key words: chaotic systems, 6-CNN, Logistic map, PRNG

Li-hua DONG,Guo-li YAO. Method for generating pseudo random numbers based on cellular neural network[J]. Journal on Communications, 2016, 37(Z1): 85-91.

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References 21

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密钥变化	位变化率
0x532a42d2→0x432a42d2	49.998 6%
0x78a12bc4→0x78a12bc5	50.002 6%

统计测试	P-value	Propotion	结果
Frequence	0.693 581	0.990 7	Pass
BlockFrequence	0.832 273	0.984 2	Pass
CumulativeSums^*	0.251 036	0.987 0	Pass
Runs	0.509 353	0.987 0	Pass
LongestRun	0.509 906	0.981 4	Pass
Rank	0.582 379	0.986 0	Pass
FFT	0.251 349	0.986 0	Pass
OverlappingTemplate	0.149 171	0.985 1	Pass
Universal	0.703 826	0.987 9	Pass
LinearComplexity	0.122 987	0.988 8	Pass
ApproximateEntropy	0.150 973	0.987 0	Pass
Serial^*	0.376 366	0.984 2	Pass
NonOverlappingTemplate^*	0.214 120	0.983 2	Pass
RandomExcursions^*	0.301 571	0.985 2	Pass
RandomExcursionsVariant*	0.811 644	0.986 7	Pass

方法	信息熵
本文方法文献[20]方法	7.997 4
	7.989 1
文献[21]方法	7.989 0

Method for generating pseudo random numbers based on cellular neural network

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