Problems of Information Transmission

, Volume 38, Issue 3, pp 237–246 | Cite as

New Technique for Decoding Codes in the Rank Metric and Its Cryptography Applications

  • A. V. Ourivski
  • T. Johansson
Article

Abstract

We present two new algorithms for decoding an arbitrary (n, k) linear rank distance code over GF(q N ). These algorithms correct errors of rank r in O((Nr)3q(r−1)(k+1)) and O((k + r)3r3q(r−1)(Nr)) operations in GF(q) respectively. The algorithms give one of the most efficient attacks on public-key cryptosystems based on rank codes, as well as on the authentication scheme suggested by Chen.

Keywords

System Theory Authentication Scheme Linear Rank Rank Distance Decode Code 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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© MAIK “Nauka/Interperiodica” 2002

Authors and Affiliations

  • A. V. Ourivski
  • T. Johansson

There are no affiliations available

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