基于双线性对的无线传感器网络匿名广播认证协议

Anonymous broadcast authentication protocol for wireless sensor networks based on bilinear pairing

提出了一种无线传感网络上的基于公钥的匿名广播认证机制,能够达到即时广播认证,避免了认证体制所面临的攻击行为,同时也实现了用户的匿名。证书中心(CA)只离线地为用户颁发或者更新一个根证书,用户每次参与认证时使用根证书自己计算产生一个一次性伪名证书,保证了用户的匿名性和不可关联性。另一方面,CA不参与认证过程,保证了协议的效率。而且,CA可以对非法用户进行追踪和撤消其根证书,保证了整个体制的完备性。

An anonymous broadcast authentication protocol based on public key in Wireless Sensor Networks（WSNs） is presented.This scheme can achieve immediate broadcasting authentication and realize anonymity of users,avoiding Denial-of-Service（DOS） attack suffered by other schemes.In this scheme,the Certificate Authority（CA） only needs to issue or update a root certificate for a user offline.Thereafter,the user can compute and generate pseudonymous certificate,which is only used in one authentication procedure,hence assures the anonymity and unlinkability of the user.Moreover,the CA is totally on leave during the authentication procedure,which makes the scheme efficient and scalable.The CA is also able to trace and even revoke the users with illegal actions,which ensures the completeness of the scheme.