摘要： In this paper, the recent progress on chaotic cryptography is summarized firstly. Then a novel pseudorandom bit generator based on coupled Logistic maps is proposed. Theoretical analysis and numerical experiments illustrate that it is superior to those in

关键词: 密码学 伪随机位发生器 耦合Logistic映射 混沌序列密码算法 混沌密码学