WSNs中一种基于Chebyshev混沌映射的认证密钥协商协议

An authentication key agreement protocol based on Chebyshev chaotic map in WSNs

结合Chebyshev多项式良好的混沌特性、半群特性,提出了1种基于Chebyshev混沌映射的无线传感器网络认证与密钥协商协议,利用Chebyshev多项式的密码特性代替传统的密码学算法加密信息。所提出协议包括注册阶段、登录阶段、认证和密钥协商3个阶段。与其他协议相比,本协议提供了会话密钥转发安全,在抵抗弱验证、智能卡丢失、已知会话临时信息、内部特权等攻击方面,安全性有所提高。通过结果分析,证明了协议的可行性、安全性。

Based on the Chebyshev polynomials？ good chaos and semigroup property, a protocol for authentication and key agree-ment of wireless sensor networks based on Chebyshev chaotic map is proposed. The information is encrypted by Chebyshev poly-nomials instead of traditional cryptographic algorithms. The proposed protocol includes three stages： registration phase, login phase, authentication and key negotiation phase. Compared with other protocols,the proposed protocol provides the security of session key forwarding and improves the security in the aspects of weak authentication attack, smart cards loss attack, the known session temporary information attack, and internal privilege attack. The feasibility and security of the protocol are proved by the result analysis.