Related-mode attacks on block cipher modes of operation

  • Authors:
  • Raphael C.-W. Phan;Mohammad Umar Siddiqi

  • Affiliations:
  • Information Security Research (iSECURES) Lab, Swinburne University of Technology, Kuching, Malaysia;Faculty of Engineering, Multimedia University, Cyberjaya, Malaysia

  • Venue:
  • ICCSA'05 Proceedings of the 2005 international conference on Computational Science and Its Applications - Volume Part III
  • Year:
  • 2005

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Abstract

In this paper, we present a generalization of the notion of the recently proposed related-cipher attacks. In particular, we show that when the cryptanalyst has access to an oracle under one mode, then almost all other related-cipher modes can be attacked with ease. Typically only one chosen plaintext/ciphertext query is required, while computational complexity is negligible.