Invariants of trace forms in odd characteristic and authentication codes |
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| Institution: | 1. Department of Mathematics, Southern Illinois University Carbondale, IL 62901, USA;2. Department of Mathematics & Physics, University of New Haven, CT 06516, USA |
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| Abstract: | We complete A. Klapper's work on the invariant of a one-term trace form over a finite field of odd characteristic. We apply this to computing the probability of a successful impersonation attack on an authentication code proposed by C. Ding et al. (2005). |
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| Keywords: | Finite fields Quadratic forms Authentication codes |
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