基于椭圆曲线密码组合公钥的ad hoc密钥管理方案

Key Management Scheme for Ad Hoc Networks Based on ECC Combined Public Key

Ad Hoc网络是一种独具特色的网络,作为一种新型的无线、多跳、无中心分布式控制网络,它无需网络基础设施,具有很强的自组织性、鲁棒性、抗毁性和容易构建的特点,其安全问题一直是研究的热点和难点。文中提出了一种改进的基于椭圆曲线密码组合公钥的ad hoc密钥管理方案。与原方案相比,除了保持快捷地计算出节点的公私钥对、扩展性好、无需证书等特性外,新方案进一步提高了ad hoc网络的安全性,避免了单点失败。

Ad Hoc is an unique network, which is a new type of wireless, multi-hop, no centre and distributed control network. It does not need network infrastructure, and has the characteristics of strong self-organization, robustness, survivability and easy construction, and also its security issue has become a hot and difficult problem. Based on ECC combined public key, an improved key management scheme for ad hoc networks is proposed in this paper. Compared with the original scheme, in addition to keeping efficient calculation of public and private key for nodes, high extensibility, and with no certificate, the new scheme further enhances the security of ad hoc network, and avoids single point failure.