Unconditionally Secure Group Authentication |
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Authors: | Marten van Dijk Christian Gehrmann Ben Smeets |
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Institution: | (1) Philips Research Labratories, Prof. Holstlaan 4, 5656 AA Eindhoven, The Netherlands;(2) Switchlab, Ericsson Telecom, S-126 25 Stockholm, Sweden;(3) Department of Information Technology, Lund University, Box 118, S-221 00 Lund, Sweden |
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Abstract: | Group authentication schemes as introduced by Boyd and by Desmedt and Frankel are cryptographic schemes in which only certain designated groups can provide messages with authentication information. In this paper we study unconditionally secure group authentication schemes based on linear perfect secret sharing and authentication schemes, for which we give expressions for the probabilities of successful attacks. Furthermore, we give a construction that uses maximum rank distance codes. |
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Keywords: | authentication group authentication secret sharing maximum rank distance codes |
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