|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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