Abstract
We study the problem of computing the key equivocation rate for secrecy systems with additive-like instantaneous block (ALIB) encipherers. In general it is difficult to compute the exact value of the key equivocation rate for a secrecy system (\(f, {\cal C})\) with ALIB encipherer when the block length n becomes large. In this paper, we propose a simplified method for computing the key equivocation rate for two classes of secrecy systems with ALIB encipherers. 1) The function f is additive-like and the block encipherer C is the set of all n-length key words (sequences) of type P. 2) The function f is additive and the block encipherer C is a linear (n, m) code in the n-dimensional vector space GF(q)n. The method has a potential use for more classes of secrecy systems.
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References
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Zhang, Z. (2006). A Simplified Method for Computing the Key Equivocation for Additive-Like Instantaneous Block Encipherers. In: Ahlswede, R., et al. General Theory of Information Transfer and Combinatorics. Lecture Notes in Computer Science, vol 4123. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11889342_14
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DOI: https://doi.org/10.1007/11889342_14
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-46244-6
Online ISBN: 978-3-540-46245-3
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