摘要
基于ECC(Elliptic Curves Cryptography),提出一种新的适用于ad hoc网的基于口令认证的多方密钥协商协议。该协议包括系统初始化、基于ID的口令进化算法、节点身份认证算法和节点会话密钥算法4部分。该协议采用身份标识ID口令进化与Waters签名方案相结合来认证节点公钥的有效性与节点身份的可靠性。共享口令的进化机制保证每次认证节点密钥和协商密钥时口令的新鲜性和安全性。新协议具有抗口令的字典攻击、抗中间人攻击、抗重放攻击、密钥独立和前向安全等多种安全特性,分析表明该协议非常适用于无固定基础设施的移动ad hoc网。
A novel multi-party key agreement protocol with password authentication for ad hoc network is proposed.The protocol is composed of system initialization,ID-based password evolvement algorithm,identity authentication algorithm and session keys generation algorithm.The protocol combines ID-based password evolvement with Waters signature to guarantee the validity of public key and the reliability of the node＇s identity.The freshness and security of password are guaranteed by sharing password evolvement every time in node＇s identity authentication and key agreement.The new protocol enjoys many secure properties such as against dictionary attack,against man-in-middle attack,against replay attack,key independence,forward security,backward security,etc.The analysis shows that the protocol is very suitable for ad hoc network.
出处
《计算机与现代化》
2013年第9期183-185,共3页
Computer and Modernization
关键词
ad
HOC网
密钥认证
身份认证
密钥协商
ad hoc networks
key authentication
identity authentication
key agreement
