International Workshop on Fast Software Encryption

FSE 2005: Fast Software Encryption pp 368-383

Related-Key Rectangle Attacks on Reduced Versions of SHACAL-1 and AES-192

  • Seokhie Hong
  • Jongsung Kim
  • Sangjin Lee
  • Bart Preneel
Conference paper

DOI: 10.1007/11502760_25

Volume 3557 of the book series Lecture Notes in Computer Science (LNCS)

Abstract

In this paper we propose a notion of related-key rectangle attack using 4 related keys. It is based on two consecutive related-key differentials which are independent of each other. Using this attack we can break SHACAL-1 with 512-bit keys up to 70 rounds out of 80 rounds and AES with 192-bit keys up to 8 rounds out of 12 rounds, which are faster than exhaustive search.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • Seokhie Hong
    • 1
  • Jongsung Kim
    • 2
  • Sangjin Lee
    • 2
  • Bart Preneel
    • 1
  1. 1.Katholieke Universiteit Leuven, ESAT/SCD-COSICLeuven-HeverleeBelgium
  2. 2.Center for Information Security Technologies(CIST)Korea UniversitySeoulKorea