Title
LIGER: implementing efficient hybrid security mechanisms for heterogeneous sensor networks
Abstract
The majority of security schemes available for sensor networks assume deployment in areas without access to a wired infrastructure. More specifically, nodes in these networks are unable to leverage key distribution centers (KDCs) to assist them with key management. In networks with a heterogeneous mix of nodes, however, it is not unrealistic to assume that some more powerful nodes have at least intermittent contact with a backbone network. For instance, an air-deployed battlefield network may have to operate securely for some time until uplinked friendly forces move through the area. We therefore propose LIGER, a hybrid key management scheme for heterogeneous sensor networks that allows systems to operate in both the presence and absence of a KDC. Specifically, when no KDC is available, nodes communicate securely with each other based upon a probabilistic unbalanced method of key management. The ability to access a KDC allows nodes to probabilistically authenticate neighboring devices with which they are communicating. We also demonstrate that this scheme is robust to the compromise of both low and high capability nodes and that the same keys can be used for both modes of operation. Detailed experiments and simulations are used to show that LIGER is a highly practical solution for the current generation of sensors and the unbalanced approach can significantly reduce network initialization time.
Year
DOI
Venue
2006
10.1145/1134680.1134683
MobiSys
Keywords
Field
DocType
backbone network,hybrid key management scheme,heterogeneous mix,heterogeneous sensor network,network initialization time,key management,sensor network,efficient hybrid security mechanism,key distribution center,air-deployed battlefield network,probabilistic unbalanced method,security
Key management,Key distribution,Key distribution in wireless sensor networks,Authentication,Computer science,Computer network,Initialization,Probabilistic logic,Backbone network,Wireless sensor network,Distributed computing
Conference
ISBN
Citations 
PageRank 
1-59593-195-3
13
0.67
References 
Authors
20
5
Name
Order
Citations
PageRank
Patrick Traynor1117187.80
Raju Kumar21026.46
Hussain Bin Saad3130.67
Guohong Cao46690326.81
Thomas La Porta580191.33