Paper 2002/176

Theoretical Analysis of ``Correlations in RC6''

Masahiko Takenaka, Takeshi Shimoyama, and Takeshi Koshiba

Abstract

In this paper, we give the theoretical analysis of Chi-square attack proposed by Knudsen and Meier on the RC6 block cipher. To this end, we propose the novel method of security evaluation against Chi-square attack precisely including key dependency by introducing a technique ``Transition Matrix Computing.'' On the other hand, the way of security evaluation against Chi-square attack has not been known except the computer experiment. We should note that it is the first results the way of security evaluation against Chi-square attack is shown theoretically. Using this method, we can obtain the ``weakest keys'' against the attack.

Metadata
Available format(s)
PDF PS
Category
Secret-key cryptography
Publication info
Published elsewhere. Unknown where it was published
Keywords
cryptanalysisRC6Chi-square attackTransision Matorix
Contact author(s)
takenaka @ labs fujitsu com
History
2002-11-18: revised
2002-11-16: received
See all versions
Short URL
https://ia.cr/2002/176
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2002/176,
      author = {Masahiko Takenaka and Takeshi Shimoyama and Takeshi Koshiba},
      title = {Theoretical Analysis of ``Correlations in RC6''},
      howpublished = {Cryptology ePrint Archive, Paper 2002/176},
      year = {2002},
      note = {\url{https://eprint.iacr.org/2002/176}},
      url = {https://eprint.iacr.org/2002/176}
}
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