DocumentCode :
3244412
Title :
An Efficient Cluster-Based Proactive Secret Share Update Scheme for Mobile Ad Hoc Networks
Author :
Ying Dong ; Ai Fen Sui ; Siu Ming Yiu ; Li, Victor O. K. ; Hui, Lucas C. K. ; Go, H.W.
Author_Institution :
Univ. of Hong Kong, Hong Kong
fYear :
2007
fDate :
24-28 June 2007
Firstpage :
1241
Lastpage :
1246
Abstract :
When implementing public key security services in mobile ad hoc networks (MANETs), multiple certificate authority (CA) servers are usually adopted to increase the security of the system, with each CA node holding only one share of the private key. To prevent an adversary from collecting a large enough number of shares over a long period of time to compromise the system, the shares will be periodically updated. However, it is not trivial how this update procedure can be done efficiently in a MANET. In this paper, we devise an efficient distributed secret key share update scheme for MANETs based on the cluster architecture. In our scheme, the secret shares are updated first by a small group of server nodes. With the assistance of the cluster head in each cluster, the updated servers then refresh the shares in the remaining servers. We evaluate our scheme by simulation and show that our scheme can expedite the share update process.
Keywords :
ad hoc networks; mobile radio; private key cryptography; public key cryptography; telecommunication security; MANET; cluster-based proactive secret share update scheme; distributed secret key share update scheme; mobile ad hoc networks; multiple certificate authority; private key; public key security services; system security; Communications Society; Computer science; Content addressable storage; Cryptography; Data engineering; Mobile ad hoc networks; Network servers; Peer to peer computing; Public key; Security;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communications, 2007. ICC '07. IEEE International Conference on
Conference_Location :
Glasgow
Print_ISBN :
1-4244-0353-7
Type :
conf
DOI :
10.1109/ICC.2007.210
Filename :
4288881
Link To Document :
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