计算机工程2011，Vol.37Issue(1)：137-138,141,3.DOI:10.3969/j.issn.1000-3428.2011.01.047
对LZ混沌序列密码算法的分割攻击
Divide-and-conquer Attack on LZ Chaotic Sequence Cipher Algorithm
摘要
Abstract
This paper analyzes the security of a chaos-based stream cipher, it is found that the first several key stream bits of this chaotic cipher are not sensitive to the least significant bits of key, the parameter of chaotic mapping is not suitable as a key. Based on this information leaking, a divide-and-conquer attack is presented to decrease the entropy of key, and its effectiveness is confirmed by theoretic analysis and trials.关键词
混沌密码/密码分析/分割攻击Key words
chaotic cipher/ cryptanalysis/ divide-and-conquer attack分类
信息技术与安全科学引用本文复制引用
汪海明,李明,金晨辉..对LZ混沌序列密码算法的分割攻击[J].计算机工程,2011,37(1):137-138,141,3.基金项目
河南省杰出青年科学基金资助项目(0312001800) （0312001800）
