Efficient storage for category-based group key management
2004 (English)In: Proceedings of the 5th Conference on Computer Science and Systems Engineering in Linköping, 2004, 139-146 p.Conference paper (Refereed)
In multicast group communication, efficiency- and security are competing requirements and balancing them is an acknowledged challenge. In particular, the collusion resistance has an impact on the efficiency of any scheme. In this context, the category-based group key management (category-based GKM) scheme balances the collusion resistance constraints against the communication cost and the group controller storage. However, this scheme increases the storage requirements for users. In this paper we address this problem by introducing a novel technique based on spanning hash key tree (SKT). In the worst case, using our t echnique, the storage requirement remains the same as in the original category-based GKM scheme. However, the experimentalresults show that, in general, the SKT technique greatly reduces the key storage for the users as well as for the controller.
Place, publisher, year, edition, pages
2004. 139-146 p.
group communication, security, efficiency, tradeoffs
IdentifiersURN: urn:nbn:se:liu:diva-22782Local ID: 2114OAI: oai:DiVA.org:liu-22782DiVA: diva2:243095
5th Conference on Computer Science and Systems Engineering in Linköping, Norrköping, Sweden, October, 2004