Authors: Mihaljević, Miodrag J. 
Affiliations: Mathematical Institute of the Serbian Academy of Sciences and Arts 
Title: On message protection in cryptosystems modelled as the generalized wire-tap channel II
Journal: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume: 829 LNCS
First page: 13
Last page: 24
Issue Date: 1-Jan-1994
Rank: M23
ISBN: 978-3-540-58265-6
ISSN: 0302-9743
DOI: 10.1007/3-540-58265-7_3
Abstract: 
A novel approach to the analysis of message security in cryptosystems which can be modelled as the generalized wire-tap channel II is considered. Roughly speaking, the codewords transmitted through this channel are degraded by the deletion of a number of bits and by the complementing of a number of the remaining bits. It is assumed that the channel output codewords are available to a cryptanalyst. The security of the messages is measured by the uncertainty after certain minimum distance decoding (MDD) procedures are applied to the received code­words. A novel distance measure relevant to MDD is proposed, and the remaining uncertainty after MDD is analyzed. An extension of the approach is also considered.
Keywords: Uncertainty analysis | Channel output | Code-words | Distance measure | Message securities | Minimum-distance decoding | Wire-Tap Channel II
Publisher: Springer Link

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