基于混沌映射的伪随机序列发生器

摘要

A new pseudorandom number generator based on piecewise linear chaotic map (PWLCP) was proposed. The proposed scheme can overcome the defect of piecewise linear when using PWLCP to generate the pseudorandom sequence. Theoretical analysis and computer simulation indicate that the proposed pseudo random generator has good cryptographical properties.%提出了一种基于线性分段混沌映射( PWLCM)的收缩式伪随机序列发生器.针对分段线性混沌映射“逐段线性”的缺点,提出一种新的混沌轨迹比特位提取算法.该算法使用具有最长周期的线性移位寄存器(m-LFSR)所产生的序列来控制混沌轨道比特位的提取,从而有效避免混沌轨道泄露造成的安全性问题.分析表明,该发生器具有良好的密码学特性.