一种基于超混沌系统的身份认证方案

An Identity Authentication Scheme based on Hyperchaotic System

混沌系统由于对初始条件的敏感依赖性而能产生数量众多、非相关、类随机而又确定可再生的混沌信号,而超混沌序列作为一种特殊的混沌序列,由于其更好的随机性和复杂性,更适合作为密钥序列。动态口令是较安全的网络身份认证机制,口令一次一变,无法预测和跟踪,难以窃取,能防止消息的重放攻击,从而保证了用户安全。基于超混沌系统的身份认证技术,采用"一次一密"的动态口令校验,把生成的混沌序列作为用户的身份标识序列,任何人伪造他人身份标识序列都是不可能的。

Because of depending on the sensitive of initial conditions, chaotic systems can produce the large number of non-related、random and determined renewable signal. The hyperchaotic sequence,as a particular sequence, because of its better randomness and complexity, are more fit of keys sequence. Dynamic password is more secure network authentication mechanism, the password changed every time, can not predict and track, it is difficult to steal, to prevent message replay attacks. Thereby it can ensure the safety of users. Identity authentication technology is based on hyperchaotic system, which use ＂one-time password＂ dynamic password verification. The chaotic sequence, which are produced by hyperchaotic system, is used for the identity sequence. Any person forges the identity sequence of others is impossible.