Deterministic Differential Properties of the BMW Compression Function

نویسندگان

  • Jian Guo
  • Søren S. Thomsen
چکیده

In this paper, we give some determinstic differential properties for the compression function of SHA-3 candidate Blue Midnight Wish (tweaked version for round 2). The computational complexity is about 2 compression function calls. This applies to security parameters 0/16, 1/15, and 2/14. The efficient differentials can be used to find pseudo-preimages of the compression function with marginal gain over brute force. However, none of these attacks threaten the security of the BMW hash functions.

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تاریخ انتشار 2010