一种基于冗余路径的自组网密钥管理方案研究

A Redundant Paths Key Management Scheme for Ad Hoc Networks

基于部分分布式门限机制的密钥管理方案能提供高的安全性,但认证成功率较低,可扩展性差;基于证书链的密钥管理方案适合自组网的特点,但不能满足高安全要求的应用环境。在Hubaux证书链方案的基础上,文中提出了基于冗余路径的自组网密钥管理方案,该方案提高了系统的安全性,防止了不诚实节点的欺骗攻击;仿真结果表明,通过增加本地节点存储的证书数量,可以达到较高的认证成功率,满足自组网应用的高安全要求。

Key management schemes based on threshold mechanism can provide high security, but with lower certificate success rate and bad scalability; key management schemes based on certification chain satisfy self-organized features, but could not be applied in high security environment. In this paper, the redundant paths key management scheme based Hubaux scheme is proposed, which can improve the security of network and prevent dishonest attack. Simulation shows that, with the increment of local certifications, the certificate success rate can be raised, and the security needs of Ad Hoc networks satisfied.