面向云服务的匿名单点登录认证协议*

单点登录可以使用户只须进行一次身份验证就能高效便捷地访问多种网络服务。为了使用户可以更加安全高效地访问服务，基于扩展切比雪夫混沌映射，提出了一种新的单点登录认证协议，并证明了其安全性。方案中用户和云端应用服务器利用身份信息生成公、私钥对，并结合DH密钥交换思想进行双向认证。与现有其它基于切比雪夫混沌映射的认证协议进行了比较，结果显示本文提出的认证协议更加安全高效。

Anonymous Single-Sign-On Authentication Protocol for Cloud Service

Single-sign-on authentication protocols enable users to access a variety of network services efficiently and conveniently. Owing to reduce the computational and communication costs and improve the security, this paper proposed a new single-sign-on authentication protocol based on extended Chebyshev chaotic maps and also gave the security proof and the efficiency analysis of our proposed scheme. Combining the idea of DH key exchange, users and cloud application servers can implement mutual authentication quite conveniently with the public key and private key derived from identity. Comparing with other existed authentication protocols based on Chebyshev chaotic maps, the results show that our proposed authentication scheme is more secure and efficient.