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Patterns of Entropy Drop of the Key in an S-Box of the DES (Extended Abtract)

  • K. C. Zeng
  • J. H. Yang
  • Z. T. Dai
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 293)

Abstract

The S-boxes used in the DES have been looked at in various aspects like non-linearity,propagation characteristics and 1/0 correlation immunity. In the present work we try to make a cryptographic study of these boxes from a new viewpoint, namely,by investigating the way in which the uncertainty of the 6-bit key vector k which controls the work of an S-box diminishes,when a certain set of distinct plaintext vectors

Keywords

Encryption Algorithm Equivalent Classis Output Position Query Vector Mutual Connection 
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.

References

  1. [1]
    J.H. Yang. Structure and Cryptographic Evaluation of S-Boxes of DES Type. Unpublished report.Google Scholar
  2. [2]
    E.F. Brickell, J.H. Moore and M.E. Purtill, Structure in the S-boxes of the DES, Crypt-86.Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 1988

Authors and Affiliations

  • K. C. Zeng
    • 1
  • J. H. Yang
    • 1
  • Z. T. Dai
    • 1
  1. 1.Data and Communications Security CenterGraduate School of Academia SinicaChina

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