无线自组网中有效的证密钥协商方案

在Diffie-Hellman密钥交换算法和基于身份的密码体制基础上，提出一种适用于无线自组网的认证密钥协商方案。该方案利用分布的多项式秘密共享的思想，实现PKG分布化和网络中节点公私钥的生成。通过随机数认证和基于身份的签名以及DH密钥协商算法实现认证密钥协商。该方案II3E与DH算法相结合，具有基于身份的密码体制低存储量和通信量的优点，同时认证密钥协商后的通信均可采用对称密码算法来有效降低计算量，节省网络资源。理论分析证明本方案是安全的。

Efficient Authenticated Key Agreement Protocol in MANET

Based on IBE and DifficHcllman key agreement arithmetic, an efficient authenticated key agreement protocol for MANET was proposed. The PKG distribution and the created public/private key of nodes without using the trust third part were achieved by used distributed polynomial secret sharing scheme. The authenticated key agreement was carried out by IBS and DH key agreement arithmetic. The protocol was combined with IBE and DH, it had the advantage of low storage and traffic of IBE,as well as the communication after key agreement could adopt symmetry cryptographic algorithm which could availability lower computation and save resource of the MANET. The protocol was proved secure in theory.