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Full-Round Differential Attack on the Original Version of the Hash Function Proposed at PKC’98

  • Donghoon Chang
  • Jaechul Sung
  • Soohak Sung
  • Sangjin Lee
  • Jongin Lim
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2595)

Abstract

Shin et al. [4] proposed a new hash function with 160-bit output length at PKC’98. Recently, at FSE 2002, Han et al. [5] cryptanalyzed the hash function proposed at PKC’98 and suggested a method finding a collision pair with probability 2-30, supposing that boolean functions satisfy the SAC(Strict Avalanche Criterion). This paper improves their attack and shows that we can find a collision pair from the original version of the hash function with probability 2-37.13 through the improved method. Furthermore we point out a weakness of the function comes from shift values dependent on message.

Keywords

Boolean Function Hash Function Original Version Compression Function Attack Probability 
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.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2003

Authors and Affiliations

  • Donghoon Chang
    • 1
  • Jaechul Sung
    • 2
  • Soohak Sung
    • 3
  • Sangjin Lee
    • 1
  • Jongin Lim
    • 1
  1. 1.Center for Information Security Technologies(CIST)Korea UniversitySeoulKorea
  2. 2.Korea Information Security Agency(KISA)SeoulKorea
  3. 3.Paichai UniversityDaejeonKorea

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