Cryptanalysis of the Modified Version of the Hash Function Proposed at PKC'98

  • Authors:
  • Daewan Han;Sangwoo Park;Seongtaek Chee

  • Affiliations:
  • -;-;-

  • Venue:
  • FSE '02 Revised Papers from the 9th International Workshop on Fast Software Encryption
  • Year:
  • 2002

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Abstract

In the conference PKC'98, Shin et al. proposed a dedicated hash function of the MD family. In this paper, we study the security of Shin's hash function. We analyze the property of the Boolean functions, the message expansion, and the data dependent rotations of the hash function. We propose a method for finding the collisions of the modified Shin's hash function and show that we can find collisions with probability 2-30.