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认证密钥协商协议是两个或多个用户产生一个共享的安全会话密钥.在开放的网络中,用户可以使用共享的会话密钥加密/解密消息达到安全通信.近来,基于生物特征和口令的远程认证方案得到研究者的广泛关注.受到切比雪夫映射的半群特性和基于混沌映射的密钥协商协议启发,本文提出一种使用扩展混沌映射的基于生物特征密钥协商协议.新协议没有采用模指数运算或者椭圆曲线的点乘运算.安全性分析表明,新协议具有显著特征并且能抵抗各类攻击,包括特权用户攻击,重放攻击,口令猜测攻击等.性能分析表明,与其它相关协议比较,新协议的计算复杂度较低.
Authentication key agreement protocol is two or more users to generate a shared security session key.In an open network, the user can use a shared session key to encrypt / decrypt the message for secure communication.Recently, based on biometric and password Has been widely concerned by researchers.According to the semi-group characteristics of Chebyshev mapping and the key agreement protocol based on chaos mapping, this paper proposes a biometric key agreement protocol using extended chaos mapping.The new protocol No modular exponentiation or elliptic curve multiplication is used.Analysis of security shows that the new protocol has significant features and can resist various attacks, including privileged user attacks, replay attacks, password guessing attacks, etc. Performance analysis shows that, compared with other Compared with the related protocols, the computational complexity of the new protocol is low.