基于区域的异构无线传感器网络密钥管理

Domain-based key management for heterogeneous wireless sensor networks

密钥管理是无线传感器网络中极具挑战性的安全问题之一。在随机密钥预分配方案的基础上,提出一种利用节点部署知识和已知区域信息的异构无线传感器网络密钥预分配方案,并分别从网络连通性、节点内存需求和安全性等方面对方案进行性能评价和模拟仿真。结果表明,相比现有密钥管理方案,本方案能提高网络的连通性,减小节点所需存储空间,并增强网络抗攻击能力。

Key management was one of the most challenging security problems in wireless sensor networks. Based on the random key pre-distribution scheme, a new scheme was proposed for heterogeneous wireless sensor networks using deployment knowledge of the node and the prior area deployment information. The performance evaluation and security analysis show that compared with existing key management schemes, the key management scheme can substantially im- prove a network＇s connectivity with low complexity, significantly reduce the storage requirement and enhance the net- work resilience against node capture.