摘要
对文[1]中的多级混沌加密系统进行了安全性分析,包括密钥空间、密文对密钥的敏感性、抗攻击能力等方面,分析结果表明该系统具有良好的密码学特性。给出了将用户口令映射为系统加密参数的关键技术,该技术对系统的软件实现具有一定指导作用。
In this paper, we analyze the security of a multistage chaotic encryption system that is proposed in reference [1]. The analysis includes the key space of encryption system, the sensibility of ciphers to secret key and the ability resisting cryptographic attacks. The analysis results indicate that this system has good cryptography properties. Furthermore, a key technique on how to map the user passwords to encryption system parameters is proposed. This technique has an instructible effect on realizing this system by software.
出处
《计算机科学》
CSCD
北大核心
2004年第12期52-54,64,共4页
Computer Science
基金
国家自然科学基金(60271019)
教育部博士点专项基金(20080611007)
重庆市科委应用基础研究项目基金(7370)
