适用于WSN的DV签名和密钥协商机制

Designated verifier signature scheme and key agreement mechanism in WSN

为解决无线传感器网络(WSN)资源受限的问题,基于椭圆曲线数字签名算法(ECDSA),提出一个适用于WSN的指定验证者(DV)签名方案(DV-ECDSA),使只有指定的节点才能验证消息的有效性和正确性,保护信息发送节点的隐私。采用分叉定理,证明DV-ECDSA方案的安全性。基于ECDSA和DV-ECDSA,提出一种能在任意两个节点间建立共享密钥的密钥协商机制,采用数字签名思想分析机制的安全性。与现有的同类方案比较结果表明,该方案具有接近于ECDSA的优越性能,能满足能量、计算能力有限的WSN环境。

To solve the problem of limited resource in WSN,based on elliptic curve digital signature algorithm（ECDSA）,a designated verifier（DV）signature scheme（DV-ECDSA）that was suitable for wireless sensor networks（WSN）was proposed.Only the designated node could verify the validity and correctness of the received message,which protected the privacy of the node that sent the message.The security of DV-ECDSA was verified using forking theorem.Based on ECDSA and DV-ECDSA,a key agreement mechanism was proposed which could establish a shared key between any two nodes,and the security of the mechanism was analyzed using the digital signature.Results of comparison analysis show that the performances of the proposed scheme are superior as that of ECDSA,and it can meet requirements of the WSN environment in which energy computing power and etc.are limited.