无线传感器网络中广播通信的安全协议设计

摘 要：广播通信安全是无线传感器网络设计中的重要问题。本文首先分析了无线传感器网络中广播通信的特点、所需要解决的关键安全问题和以及安全协议设计原则，随后提出了基于公钥算法的全局广播通信安全协议和基于单向密钥链的局部广播通信安全协议，较好地实现了广播通信的可靠性认证、完整性和时效性。同时从性能分析看，本文方案只为传感节点引入了少量的通信负荷、能量消耗和存储空间。

The Security Protocol Design About Broadcast In Wireless Sensor Network

The potential characteristic, key security issues and design principles for achieving the security of broadcast communication in wireless sensor network are analyzed. Global broadcast authentication based on public key algorithm and local broadcast authentication based on one-way key chain are proposed respectively, as a conclusion, reliability, integrity, and freshness of broadcast were acquired effectively. The performance analysis showed this method induced less communication load, energy consume and storage space.