NDLI: A simple XOR-based technique for distributing group key in secure multicasting

Content Provider	IEEE Xplore Digital Library
Author	Ghanem, S.M. Abdel-Wahab, H.
Copyright Year	2000
Description	Author affiliation: Dept. of Comput. Sci., Old Dominion Univ., Norfolk, VA, USA (Ghanem, S.M.)
Abstract	One approach to multicast group security is to have a group key shared by every group member. In this paper, we are interested in group key distribution and management. A new simple technique is introduced for key distribution to a large group based on the hierarchical key tree. The new technique uses bit XOR operation between keys to reduce the computation effort, and uses random byte patterns (BPs) to distribute the key material in the multicast message. The new technique has symmetric procedures for message construction by a key distribution center (KDC) when a member joins or leaves the group, which allows the generation of one rekey message that incorporates multiple delays of both joins and leaves. In addition to the substantial decrease in the computation effort, our technique decreases the required group member storage. Finally, a novel model for the key tree in a distributed KDC is introduced. The new model allows sending the rekey message by one KDC to the whole group and other peer KDCs without any increase in the delay or the number of sent messages. This is achieved by building and replicating an additional KDC key tree.
Starting Page	166
Ending Page	171
File Size	613691
Page Count	6
File Format	PDF
ISBN	0769507220
DOI	10.1109/ISCC.2000.860634
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2000-07-06
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Delay Distance learning Authentication Computer science Computer security Distributed computing Teleconferencing Distributed databases Access control Data security
Content Type	Text
Resource Type	Article

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