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Journal of Cryptology

, Volume 2, Issue 3, pp 145–154 | Cite as

The cryptanalysis of FEAL-4 with 20 chosen plaintexts

  • Sean Murphy
Article

Abstract

An algebraic method is given for a chosen plaintext cryptanalysis of the Nippon Telegraph and Telephone Corporation's FEAL-4 block cipher. The method given uses 20 chosen plaintexts, but can be adapted to use as few as four chosen plaintexts.

Key words

Block cipher FEAL-4 Cryptanalysis Chosen plaintext attack 

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References

  1. [1]
    B. Den Boer, Cryptanalysis of FEAL, Advances in Cryptology—Eurocrypt 88, Lecture Notes in Computer Science, Vol. 330, Springer-Verlag, Berlin, 1989.Google Scholar
  2. [2]
    A. Shimizu and S. Miyaguchi, Fast Data Encipherment Algorithm FEAL, Advances in Cryptology—Eurocrypt 87, Lecture Notes in Computer Science, Vol. 304, Springer-Verlag, Berlin, 1988Google Scholar

Copyright information

© International Association for Cryptologic Research 1990

Authors and Affiliations

  • Sean Murphy
    • 1
  1. 1.Department of MathematicsRoyal Holloway and Bedford New College, University of LondonEghamEngland

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