A new dedicated 256-bit hash function: FORK-256

Authors:
Deukjo Hong;Donghoon Chang;Jaechul Sung;Sangjin Lee;Seokhie Hong;Jaesang Lee;Dukjae Moon;Sungtaek Chee
Affiliations:
Center for Information Security Technologies(CIST), Korea University, Seoul, Korea;Center for Information Security Technologies(CIST), Korea University, Seoul, Korea;Department of Mathematics, University of Seoul, Seoul, Korea;Center for Information Security Technologies(CIST), Korea University, Seoul, Korea;Center for Information Security Technologies(CIST), Korea University, Seoul, Korea;Center for Information Security Technologies(CIST), Korea University, Seoul, Korea;National Security Research Institute;National Security Research Institute
Venue:
FSE'06 Proceedings of the 13th international conference on Fast Software Encryption
Year:
2006

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Abstract

This paper describes a new software-efficient 256-bit hash function, FORK-256. Recently proposed attacks on MD5 and SHA-1 motivate a new hash function design. It is designed not only to have higher security but also to be faster than SHA-256. The performance of the new hash function is at least 30% better than that of SHA-256 in software. And it is secure against any known cryptographic attacks on hash functions.