一种新的基于身份的Ad hoc认证和密钥协商方案

New Identity-based Authentication and Key Agreement Scheme in Ad hoc Networks

现有Ad hoc网络中基于身份的认证和密钥协商方案是基于双线性对实现的,计算开销较大,并且存在密钥托管问题。针对该问题,提出了一种新的基于身份的认证和密钥协商方案。方案中,节点之间通过无双线性对的基于身份签名算法实现身份认证,通过Diffie-Hellman密钥协商技术建立会话密钥。分析表明,该方案不存在密钥托管问题,并且具有更高的执行效率。

The available identity-based authentication and key agreement schemes in Ad hoc networks are based on bilinear pairing with high computation cost,and the schemes also have the problem of key escrow.Considering the problem,a new identity-based authentication and key agreement scheme was proposed.Identity authentication was realized using identity-based signature without bilinear pairing.The session key was established using diffie-hellman key exchange technology.It is shown that the proposed scheme avoids the problem of key escrow,and has higher efficiency.