基于密码学的无线局域网认证方案设计与实现

基于无线局域网非对称的结构特点,设计了一个基于公钥密码技术的高效身份认证方案,并在成功认证的同时实现会话密钥的分配。该方案充分利用RSA-PSS-MR签名方案和改进型ElGamal签名方案中签名与验证计算量的非对称性,合理地配置认证服务器AS与移动终端STA的操作,使网络的整体响应效率得以极大的提高;同时,RSA-PSS-MR签名方案的消息恢复功能减少了公钥证书认证过程的传输量(仅传输公钥证书而不传输公钥),大大节省了通信带宽。

Design and Implementation of Cryptography-based Authentication Scheme for WLAN

Taking the asymmetric architecture of the wireless local area network into consideration,an efficient authentication scheme based on the public key cryptography is proposed,where secret session-key sharing is accompanied with the successful authentications.The authentication sever AS and the mobile terminals STAs are properly configured with different workloads of signature generations and signature verifications in RSA-PSS-MR scheme and the improved ElGamal signature scheme,aiming to enhance the network efficiency.The functionality of message recovery for the RSA-PSSMR scheme has reduced the communication bandwidth sharply since the public keys are not necessary to transmit in our scheme.