一种基于ID的传感器网络密钥管理方案

对偶密钥的建立是无线传感器网络的安全基础，它使得节点之间能够进行安全通信。但是由于节点资源的限制，传统的密钥管理方法在传感器网络中并不适用。在分析了现有密钥预分配协议的前提下，该文提出一种新的基于ID的密钥预分配协议。此协议用计算和比较散列值的方式替代广播方式协商密钥，减少了传感器节点大量的通信消耗。然后，分析了所提出方案的安全性、通信量和计算量，并和已有协议进行了比较。结果表明本文的方法不仅能保证安全性，而且节约了大量通信资源。

An ID-based Key Pre-distribution Scheme for Wireless Sensor Networks

Pairwise key establishment is a fundamental security service in sensor networks. It enables sensor nodes to communicate securely with each other using cryptographic techniques. However, due to the resource constraints on sensors, it is infeasible to use traditional key management techniques. To facilitate the study of novel pairwise key predistribution techniques, this paper presents a new framework for establishing pairwise keys between sensors on the basis of an ID-based key predistribution protocol. In this paper key agreement uses hash calculation and comparison instead of broadcasting; it reduces communication consumption on sensors. This paper then analyses the security and overhead and compares with previous schemes. The results show our scheme is superior to the existing approaches, and it can save communication resources.