摘要
许多无线传感器网络(WSN)协议设计过程中,没有考虑到安全问题。提出一种安全地理位置跨层协议(Secure Geo-graphic Integrated Protocol,SGIP)。在安全协议的设计过程中,同时考虑了安全引导过程。首先改进了基于位置的密钥引导方案,使其不但充分利用地理信息,而且可以同时为广播包和单播包加密,并且转发区域内所有节点都与源节点有共享密钥。在此基础上,采用基于MAC层竞争的地理路由选择算法,并对不同数据包采用不同的加密方式,设计了安全的路由/MAC跨层协议。分析表明协议具有很好的安全性能,并且开销较小。
Many protocols for wireless sensor networks (WSN) are not designed with security as a goal. A secure geographic integrated protocol (SGIP) is presented. In the process of design, key distribution and secure protocol are both considered. First a location-based key distribution scheme is extended so that it not only takes advantage of the geographic features but also can encrypt broadcast packets as well as unicast packets, and a node can establish direct keys with all nodes in forwarding areas. A routing algorithm based on the contention of MAC layer is adopted, and a secure integrated protocol is designed. Different encryption strategies are adopted for the four kinds of messages. Analysis shows that the protocol can defend against many routing attacks with low cost.
出处
《传感技术学报》
CAS
CSCD
北大核心
2008年第5期841-845,共5页
Chinese Journal of Sensors and Actuators
关键词
无线传感器网络
跨层协议
安全
基于位置密钥引导
wireless sensor networks
integrated protocol
security
location-based key distribution