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2012 23rd International Workshop on Database and Expert Systems Applications (2003)
Prague, Czech Republic
Sept. 1, 2003 to Sept. 5, 2003
ISSN: 1529-4188
ISBN: 0-7695-1993-8
pp: 455
Atul Prakash , University of Michigan
Xin Zhao , University of Michigan
ABSTRACT
Many group communication systems need to enforce a restriction that limits members are authorized to send messages to the group. Receivers therefore need to authenticate message sources before the received messages are accepted. Source authentication in peer-to-peer systems is trivial: the two communication parties can agree on one pair key and use this key to authenticate each other. However, because the group key is shared by all members in a group system, it is quite challenging to identify the sender and determine its authorization. Furthermore, if the authorization can be changed at run-time, source authentication problem can be even harder. This paper presents a source authentication technique called TTA scheme(Transitive Trust Authentication). TTA supports source authentication as well as dynamic authorization change. In addition, its computation and communication overhead is low.
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CITATION
Atul Prakash, Xin Zhao, "Source Authentication in Group Communication Systems", 2012 23rd International Workshop on Database and Expert Systems Applications, vol. 00, no. , pp. 455, 2003, doi:10.1109/DEXA.2003.1232064
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