SHAvite-3

1 The algorithm

• Author(s): Eli Biham and Orr Dunkelman
• Website: http://www.cs.technion.ac.il/~orrd/SHAvite-3/
• NIST submission package:
  • round 1: SHAvite3Update.zip (old version: SHAvite-3.zip)
  • round 2: SHAvite-3_Round2.zip

Eli Biham, Orr Dunkelman - The SHAvite-3 Hash Function

,2009

http://www.cs.technion.ac.il/~orrd/SHAvite-3/Spec.15.09.09.pdf
Bibtex

Author : Eli Biham, Orr Dunkelman
Title : The SHAvite-3 Hash Function
In : -
Address :
Date : 2009

Eli Biham, Orr Dunkelman - The SHAvite-3 Hash Function

,2008

http://ehash.iaik.tugraz.at/uploads/f/f5/Shavite.pdf
Bibtex

Author : Eli Biham, Orr Dunkelman
Title : The SHAvite-3 Hash Function
In : -
Address :
Date : 2008

2 Cryptanalysis

We distinguish between two cases: results on the complete hash function, and results on underlying building blocks.

A description of the tables is given here.

Recommended security parameter: 12 rounds (n=224,256); 14 rounds (n=384,512)

2.1 Hash function

Here we list results on the hash function according to the NIST requirements. The only allowed modification is to change the security parameter.

Type of Analysis	Hash Size (n)	Parameters	Compression Function Calls	Memory Requirements	Reference
second preimage	512	10 rounds	2497	216	Gauravaram et al.
second preimage	512	9 rounds	2496	216	Bouillaguet et al.

2.2 Building blocks

Here we list results on underlying building blocks, and the hash function modified by other means than the security parameter.

Note that these results assume more direct control or access over some internal variables (aka. free-start, pseudo, compression function, block cipher, or permutation attacks).

Type of Analysis	Hash Function Part	Hash Size (n)	Parameters/Variants	Compression Function Calls	Memory Requirements	Reference
pseudo-preimage	compression	512	14 rounds	2384+s	2128-s	Gauravaram et al.
pseudo-collision	compression	512	14 rounds	2192	2128	Gauravaram et al.
pseudo-collision	compression	all	full (Round 1)			Peyrin
pseudo-collision	compression	256	full (Round 1)			Nandi,Paul
impossible differential	block cipher	224,256	5 rounds	-	-	submission document
impossible differential	block cipher	384,512	9 rounds	-	-	submission document

Praveen Gauravaram, Gaëtan Leurent, Florian Mendel, Maria Naya-Plasencia, Thomas Peyrin, Christian Rechberger, Martin Schläffer - Cryptanalysis of the 10-Round Hash and Full Compression Function of SHAvite-3-512

Africacrypt 6055:419 - 436,2010

http://online.tu-graz.ac.at/tug_online/voe_main2.getvolltext?pCurrPk=49974
Bibtex

Author : Praveen Gauravaram, Gaëtan Leurent, Florian Mendel, Maria Naya-Plasencia, Thomas Peyrin, Christian Rechberger, Martin Schläffer
Title : Cryptanalysis of the 10-Round Hash and Full Compression Function of SHAvite-3-512
In : Africacrypt -
Address :
Date : 2010

Charles Bouillaguet, Orr Dunkelman, Gaëtan Leurent, Pierre-Alain Fouque - Attacks on Hash Functions based on Generalized Feistel - Application to Reduced-Round Lesamnta and SHAvite-3_{512}

,2009

http://eprint.iacr.org/2009/634.pdf
Bibtex

Author : Charles Bouillaguet, Orr Dunkelman, Gaëtan Leurent, Pierre-Alain Fouque
Title : Attacks on Hash Functions based on Generalized Feistel - Application to Reduced-Round Lesamnta and SHAvite-3_{512}
In : -
Address :
Date : 2009

Thomas Peyrin - Chosen-salt, chosen-counter, pseudo-collision on SHAvite-3 compression function

,2009

http://ehash.iaik.tugraz.at/uploads/e/ea/Peyrin-SHAvite-3.txt
Bibtex

Author : Thomas Peyrin
Title : Chosen-salt, chosen-counter, pseudo-collision on SHAvite-3 compression function
In : -
Address :
Date : 2009

Mridul Nandi, Souradyuti Paul - OFFICIAL COMMENT: SHAvite-3

,2009

http://ehash.iaik.tugraz.at/uploads/5/5c/NandiP-SHAvite-3.txt
Bibtex

Author : Mridul Nandi, Souradyuti Paul
Title : OFFICIAL COMMENT: SHAvite-3
In : -
Address :
Date : 2009