Difference between revisions of "Vortex (SHA-3 submission)"
From The ECRYPT Hash Function Website
(note on Vortex' security) |
(added abstract) |
||
| Line 37: | Line 37: | ||
howpublished = {Available online}, | howpublished = {Available online}, | ||
year = {2008}, | year = {2008}, | ||
| + | abstract = {Vortex is a hash function based on the AES that was presented at | ||
| + | ISC’2008, and submitted to the NIST SHA-3 competition after some modifications | ||
| + | that aim to strengthen it. This note first shows that the original Vortex is not | ||
| + | collision-resistant, by describing an attack running in about 2^{58} compressions, in- | ||
| + | stead of $2^{128}$ ideally. In the new version submitted to NIST, we present several prop- | ||
| + | erties that seem to render it unsuitable for the new hash standard. In particular, | ||
| + | both versions of Vortex have the undesirable property of impossible images, which | ||
| + | gives distinguishers for a HMAC based on Vortex and slightly speeds up preimage | ||
| + | search.}, | ||
} | } | ||
</bibtex> | </bibtex> | ||
Revision as of 10:02, 5 December 2008
1 The algorithm
- Author(s): Michael Kounavis, Shay Gueron
- Specification: http://eprint.iacr.org/2008/464
Michael Kounavis, Shay Gueron - Vortex: A New Family of One Way Hash Functions based on Rijndael Rounds and Carry-less Multiplication
- ,2008
- http://eprint.iacr.org/2008/464.pdf
BibtexAuthor : Michael Kounavis, Shay Gueron
Title : Vortex: A New Family of One Way Hash Functions based on Rijndael Rounds and Carry-less Multiplication
In : -
Address :
Date : 2008
2 Cryptanalysis
Lars R. Knudsen, Florian Mendel, Christian Rechberger, Søren S. Thomsen - Collision and Preimage Attacks on Vortex as submitted to the SHA-3 competition
- ,2008
- http://ehash.iaik.tugraz.at/uploads/5/5c/Vortex_Collisions_and_Preimages_note.txt
BibtexAuthor : Lars R. Knudsen, Florian Mendel, Christian Rechberger, Søren S. Thomsen
Title : Collision and Preimage Attacks on Vortex as submitted to the SHA-3 competition
In : -
Address :
Date : 2008
Jean-Philippe Aumasson, Orr Dunkelman - A note on Vortex' security
