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Near Collisions for the Compress Function of Hamsi-256 Found by Genetic Algorithm
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Abstract: | Hamsi is one of 14 remaining candidates in NIST's Hash Competition for the future hash standard SHA-3 and Hamsi-256 is one of four kinds of Hamsi. In this paper we present a genetic algorithm to search near collisions for the compress function of Hamsi-256 , give a near collision on (256 − 20) bits and a near collision on (256 − 21) bits with four differences in the chaining value, and obtain a differential path for three rounds of Hamsi-256 with probability 1/2^24, 1/2^23 respectively, which are better than previous work reported about near collisions. |
BibTeX
@misc{eprint-2010-23324, title={Near Collisions for the Compress Function of Hamsi-256 Found by Genetic Algorithm}, booktitle={IACR Eprint archive}, keywords={foundations /}, url={http://eprint.iacr.org/2010/423}, note={ yunqiangli@126.com 14820 received 30 Jul 2010, last revised 30 Jul 2010}, author={LI Yun-qiang and Wang Ai-lan}, year=2010 }