Redundancy of the Wang-Yu Sufficient Conditions

Yuto Nakano; Hidenori Kuwakado; Masakatu Morii

Paper 2006/406

Redundancy of the Wang-Yu Sufficient Conditions

Yuto Nakano, Hidenori Kuwakado, and Masakatu Morii

Abstract

Wang and Yu showed that MD5 was not collision-resistant, but it is known that their sufficient conditions for finding a collision of MD5 includes some mistakes. In this paper, we examine the sufficient conditions by computer simulation. We show that the Wang-Yu conditions include 16 unnecessary conditions for making a collision. Sasaki et al. claimed that modifying one condition made it possible to remove eleven conditions. However, the result of our computer simulation shows that their conditions does not make a collision.

Metadata

Available format(s): PDF
Publication info: Published elsewhere. Unknown where it was published
Keywords: hash functions
Contact author(s): 065t236n @ stu kobe-u ac jp
History: 2006-11-13: received
Short URL: https://ia.cr/2006/406
License: CC BY

BibTeX

@misc{cryptoeprint:2006/406,
      author = {Yuto Nakano and Hidenori Kuwakado and Masakatu Morii},
      title = {Redundancy of the Wang-Yu Sufficient Conditions},
      howpublished = {Cryptology {ePrint} Archive, Paper 2006/406},
      year = {2006},
      url = {https://eprint.iacr.org/2006/406}
}