Dynamic Updating Based Key Management Algorithm for Wireless Sensor Networks
In wireless sensor networks, sensor nodes are inherently restricted by insufficient hardware resources, such as computing capacity and battery lifetime. As a result, current key management schemes are difficult to be deployed in wireless sensor networks. This paper proposes a new key management method that the shared keys are dynamic updated for wireless sensor networks. The proposed scheme loads two hash functions and an initial key into the base station, cluster heads, and sensor nodes. Every node including the cluster heads and sensor node authenticates its neighbor nodes with the initial key. Then every node establishes pair wise key with each of its neighbor node to ensure transmission secrecy. The pair wise keys are updated between node and its neighbors within a random interval time, which is triggered by the base station. The security of this scheme is analyzed and it shows that it is robust to the guessing attacks, replay attacks, man-in-the-middle attacks and node capture attacks. The results show this scheme can also save communication resources.
Pair-wise key dynamic updating hash function
Yunhua Rao Jinhua Wang Rong Tian Fengyuan Zhu
Electronics and Information School Wuhan University Wuhan 430079, China Electronics and Information SchoolWuhan UniversityWuhan 430079, China
国际会议
南京
英文
1-5
2011-11-09（万方平台首次上网日期，不代表论文的发表时间）