A CRT-based Key Management Scheme for Wireless Sensor Networks
Date Issued
2005
Date
2005
Author(s)
Chi, Po-Wen
DOI
en-US
Abstract
To achieve security in wireless sensor networks, key management scheme is a very important issue. Key management includes both key agreement and key updating. Due to resource constraints of wireless sensor node, key management in wireless sensor networks is nontrivial. Many key management schemes in general wired networks are not suitable for wireless sensor networks. Recently, many schemes are proposed to do key agreement or key updating in efficient ways.
In this thesis, we propose a complete key management scheme that can handle both key agreement and key updating. Our scheme can deal with both group key and pairwise key, which are the same important for wireless sensor networks. Our scheme can update both of them. The key server can create announcements containing updating information according to CRT algorithm and broadcast these announcement. Each legal sensor node can derive updating information and update key information easily. Therefore, the life time of our system is longer than previous key management schemes.
Subjects
無線感測網路
金鑰管理
wireless sensor networks
key management
CRT
Type
thesis
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