WSN中基于圆锥曲线组合密钥的对等认证

Reciprocal Authentication Based on a Conic Curve Combined Public Key in Wireless Sensor Networks

综合分析了无线传感器网络已有认证协议在加密体系、PKC公钥绑定及应对攻击形式等方面的发展趋势和不足,给出引入了位置信息的基于身份的节点对等认证方案.该方案采用在求逆、求阶及求点倍数等操作比椭圆曲线容易的圆锥曲线加密体系.基于身份避免了证书的颁发/更新、存储、索取、验证等计算和通信开销;引入位置信息使得方案更健壮,形式化分析证明该方案是安全的.基于MICAx系列无线传感器网络节点的能耗分析结果表明:方案能很好地适用于资源受限的WSN环境.

Comprehensive analysis was conducted on the development trends and deficiencies of a wireless sensor network（WSN） with authentication protocols,especially with regard to encryption,public key cryptography binding,and answer attack modes,to provide location information based on a scheme for reciprocal authentication of personal ID nodes.The scheme utilizes conic curve cryptography（CCC）,which is more efficient and easier to use in inverse operations,order computations, and point multiplication computations than elliptic curve cryptography（ECC）.Location information introduced into the ID-based scheme makes the protocol more resilient and robust in thwarting new attacks.The protocol was shown to be secure and energy cost analysis of the protocol demonstrated its feasibility.