一种WIA-PA网络的密钥分配方案

密钥分配是WIA-PA网络通信安全的基础,由于WIA-PA用于工业现场环境恶劣、节点资源非常受限、mesh与star双层拓扑结构等特点,传统的基于公钥和可信任的密钥分配中心等方式不能实用;针对WIA-PA网络特点,提出用对称加密算法和单向哈希函数的密钥管理方案,并可满足前向和后向安全性;与目前使用的随机密钥分配相比,方案不仅具有较好的效率,并且更适合于WIA-PA网络。

Key Management Scheme of WIA-PA Networks

Key distribution plays a fundamental role in WIA-PA networks.As WIA-PA networks are used in execrable environment in industrial field,node resource-constrained,mesh and star two topologies,traditional key management techniques,such as public key cryptography or key distribution center,are often not effective.We discuss the characteristics of WIA-PA networks,and propose a key management scheme using symmetric cryptographic algorithms and Hashing function which can achieve forward and backward security.This s...