Thesis
A lightweight key distribution mechanism for wireless sensor networks
Washington State University
Master of Science (MS), Washington State University
2009
Handle:
https://hdl.handle.net/2376/102031
Abstract
Security is of critical importance for many potential applications of wireless sensor networks. In order to maintain secure communication throughout the network, it is of vital importance to maintain encryption key freshness by regularly distributing new keys to all nodes. Distribution of group keys used to encrypt broadcast communication is expensive, as it is generally achieved via flooding, which taxes the limited battery life available to each node. We propose LKDT, a lightweight encryption key distribution tree building mechanism to provide a framework by which to distribute keys while reducing power consumption and broadcast coverage overlap. LKDT ensures reliable key distribution by using negative acknowledgment based feedback when a key does not reach its destination. Additionally, LKDT can configure itself quickly, allowing the base station to begin updating keys shortly after deployment.
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Details
- Title
- A lightweight key distribution mechanism for wireless sensor networks
- Creators
- Lynsey Elizabeth Compton-Drake
- Contributors
- Sirisha Medidi (Degree Supervisor)
- Awarding Institution
- Washington State University
- Academic Unit
- Electrical Engineering and Computer Science, School of
- Theses and Dissertations
- Master of Science (MS), Washington State University
- Publisher
- Washington State University; Pullman, Wash. :
- Identifiers
- 99900525122401842
- Language
- English
- Resource Type
- Thesis