计算机工程与应用2018，Vol.54Issue(11)：97-102,6.DOI:10.3778/j.issn.1002-8331.1701-0160
一种新的基于时空混沌的伪随机数发生器
New pseudorandom number generator based on spatiotemporal chaos
摘要
Abstract
The spatiotemporal chaotic system has good cryptographic properties and is often applied for Pseudorandom Number Generator(PRNG).However,the density distribution of spatiotemporal chaotic system is not uniform,which is not good for the security of PRNG.To solve this problem,a new pseudorandom number generator based on spatiotempo-ral chaos is presented.To improve the cryptographic property of local map,the piecewise logistic map is used as the local map of the spatiotemporal chaos.The uniform density distribution is achieved by changing the coupled parameters of spa-tiotemporal chaos.The results of theory analysis and simulation test show that the sequences generated by the presented algorithm own good initial-value sensitivity and randomness.Meanwhile,the presented algorithm also has high efficien-cy.It can satisfy the security requirement of encrypting information.关键词
伪随机数发生器/时空混沌/混沌密码/分段Logistic映射Key words
pseudo-random generator/spatiotemporal chaos/chaos cryptography/piecewise Logistic map分类
信息技术与安全科学引用本文复制引用
王永,马键滨,陈燕,何波..一种新的基于时空混沌的伪随机数发生器[J].计算机工程与应用,2018,54(11):97-102,6.基金项目
国家自然科学基金(No.61472464) （No.61472464）
国家社科基金(No.14CTQ026) （No.14CTQ026）
重庆市教委科技项目(No.KJ1600440). （No.KJ1600440）
