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On the F-function of FEAL

  • Walter Fumy
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 293)

Abstract

The cryptographic strength of a Feistel Cipher depends strongly on the properties of its F-function. Certain characteristics of the F-function of the Fast Data Encipherment Algorithm (FEAL) are investigated and compared to characteristics of the F-function of the Data Encryption Standard (DES). The effects of several straight-forward modifications of FEAL’s F-function are discussed.

References

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Copyright information

© Springer-Verlag Berlin Heidelberg 1988

Authors and Affiliations

  • Walter Fumy
    • 1
  1. 1.Systems Engineering Development, E STE 36Siemens AGErlangenWest Germany

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