基于无证书密码学的WSN认证方案

The Authentication Scheme of WSN Based on Certificateless Cryptography

无证书公钥密码体制克服了基于身份公钥密码体制中的密钥托管问题,没有传统公钥密码体制中证书管理带来的额外开销。但传统认证服务中强依赖于专门认证服务器和可信第三方的认证模式,认证运行成本高,针对集中认证处理能力低、需要低运行成本的WSN网络节点,不能运用传统认证的缺陷,提出一种基于无证书密码的WSN认证,该认证把网络节点的认证交给可信邻接点组成的认证集去完成。结果分析和仿真实验表明该认证方案对伪造、重放、冒充和俘获网络节点等攻击具有安全性。

Certificateless Public Key Cryptography （CL-PKC） eliminates the inherent key escrow problem of Identity-Based Cryptography （IBC）, which dispenses with certificates of traditional Public Key Cryptography （PKC） and their costly management overhead. In view of the shortages that traditional authentication service strongly depends on the special authentication server and the trusted third party authentication mode,what is of high cost and centralized authentication capa- bilities can not meet the large number of nodes applying for certification simultaneously, pro- poses a WSN certificateless access authentication that give the certification to applying nodes to the adjacent points to complete, the analysis and simulation of the results shows that the authen- tication is secure and efficient.