An efficient and scalable key distribution mechanism for hierarchical wireless sensor networks

Many applications of wireless sensor network (WSN) require secure data communications, especially in a hostile environment. In order to protect the sensitive data and the sensor readings, secret keys should be used to encrypt the exchanged messages between communicating nodes. Traditional asymmetric...

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Bibliographic Details
Main Authors: An-Ni Shen, Song Guo, Hung-Yu Chien
Format: Conference Proceeding
Language:English
Subjects:
Communication system security
Computer networks
Computer science
Cryptography
Data engineering
hierarchical wireless sensor network
Information security
key management
pair-wise key
Protocols
Robustness
security
Sensor phenomena and characterization
Wireless sensor networks
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Summary:Many applications of wireless sensor network (WSN) require secure data communications, especially in a hostile environment. In order to protect the sensitive data and the sensor readings, secret keys should be used to encrypt the exchanged messages between communicating nodes. Traditional asymmetric key cryptosystems are infeasible in WSNs due to the low capacity of each senor node. In this paper, we propose a new key pre-distribution scheme for hierarchical WSNs. Compared to some of the existing schemes, our methods possess the following features that are particularly beneficial to the resource-constrained large-scale WSNs: (1) it can fully defend against the node captured attack, (2) it minimizes the storage and communication overhead, and (3) it provides full connectivity of the network.
DOI:10.1109/SARNOF.2009.4850313