一个新的基于身份的无线传感器网络密钥协商方案

无线信道具有开放性，节点间建立配对密钥是无线传感器网络安全通信的基础。在大部分基于身份加密(Identity-Based Encryption, IBE)的传感器网络密钥协商方案中，使用双线对运算建立配对密钥，能耗高且耗时长。基于BNN-IBS身份签名提出了一个新的无线传感器网络密钥协商方案，节点通过Diffie-Hellman协议建立配对密钥，所需的密钥参数通过广播获得。与基于IBE的传感器网络密钥协商方案(IBE-based Key Agreement Scheme, IBEKAS)进行量化比较，结果表明本方案不仅提供了与IBEKAS同层次的安全性与可扩展性，且在能耗与时耗方面具有较明显的优势。

New Identity-based Key Agreement Scheme for WSN

For the openness of wireless channel, establishing pairwise key between sensor nodes is the basis of the secure communication in wireless sensor networks. In most of existing IBE-based key agreement schemes, the pairwise key was established using hate pairing with high energy consuming and time consuming. In this paper, authors proposed a key agreement scheme based on BNN-IBS signature, sensors broadcast the parameters required for establishing pairwise key and compute the key using DifficHcllman key exchange technology. Compared with the IBE-based key agreement scheme, the proposed scheme has patent advantages in energy consuming and time consuming with the same security and scalabihty.