中文摘要：

基于ECC构造一个适合于Ad Hoc网的无证书认证和密钥协商方案,可实现分布式密钥产生、新成员加入和移动自组网任何两个成员之间的身份认证和会话密钥协商.移动自组网中每个成员在加入群组时可获得群组多个成员颁发的群组成员密钥和新成员自选的长期私钥.在安全通信中,只要用户有1个秘密值未泄露,那么新方案就是安全的,该方案能够同时满足无用户密钥托管、无密钥泄露伪装攻击和会话时用户临时私钥泄露也不会产生攻击,方案的安全性基于计算性DH困难问题和离散对数困难问题.

英文摘要：

Certificateless authentication and key agreement is proposed by using ECC,which is suitable for mobile Ad Hoc networks and can realize distributed key generation,new group member participation,group member identitity authentication and key agreement.New member can get group member key and its chosed key when it joins mobile Ad Hoc.The scheme is secure during communication if users one key is compromised,which can satisfy no user key trusteeship,no key compromise impersonation attack and no session key compromise attack.The schemes security is based on Diffie-Hellman Problem and discrete logarithm problem.