Security analysis of a multiple pseudorandom-bit generator based on a spatiotemporal chaotic map

作     者：王世红 李达 

作者机构：School of ScienceBeijing University of Posts and Telecommunications Key Laboratory of Optical Communication and LightwaveBeijing University of Posts and Telecommunications 

出 版 物：《Chinese Physics B》 (中国物理B（英文版）)

年 卷 期：2010年第19卷第8期

页      面：163-170页

核心收录：

学科分类：07[理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 070201[理学-理论物理] 0704[理学-天文学] 0702[理学-物理学] 

基　　金：Project supported by the National Natural Science Foundation of China(Grant No.60973109) 

主　　题：coupled map lattice cryptoanalysis pseudorandom-bit generator 

摘      要：In this paper we analyse the security of a multiple pseudorandom-bit generator based on the coupled map lattice and suggest an improved model. Utilizing the error function attack, the multiple pseudorandom-bit generators which can be realized by the three digitization methods are analysed and the effective key spaces are estimated. We suggest an improved multiple pseudorandom-bit generator with 128-bit secret key, and analyse the key sensitivity and statistical properties of the system.