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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