Cryptanalysis of the Hash Function LUX-256

Shuang Wu; Dengguo Feng; Wenling Wu

Paper 2008/520

Cryptanalysis of the Hash Function LUX-256

Shuang Wu, Dengguo Feng, and Wenling Wu

Abstract

LUX is a new hash function submitted to NIST's SHA-3 competition. In this paper, we found some non-random properties of LUX due to the weakness of origin shift vector. We also give reduced blank round collision attack, free-start collision attack and free-start preimage attack on LUX-256. The two collision attacks are trivial. The free-start preimage attack has complexity of about 2^80 and requires negligible memory.

Metadata

Available format(s): PDF
Publication info: Published elsewhere. Unknown where it was published
Keywords: hash function pseudo-random function pseudo-collision free-start preimage
Contact author(s): wushuang @ is iscas ac cn
History: 2008-12-25: revised; 2008-12-16: received; See all versions
Short URL: https://ia.cr/2008/520
License: CC BY

BibTeX

@misc{cryptoeprint:2008/520,
      author = {Shuang Wu and Dengguo Feng and Wenling Wu},
      title = {Cryptanalysis of the Hash Function {LUX}-256},
      howpublished = {Cryptology {ePrint} Archive, Paper 2008/520},
      year = {2008},
      url = {https://eprint.iacr.org/2008/520}
}