SIMD

1 The algorithm

• Author(s): Gaëtan Leurent, Charles Bouillaguet, Pierre-Alain Fouque
• Website: http://www.di.ens.fr/~leurent/simd.html
• NIST submission package:
  • round 1: SIMDUpdate.zip (old version: SIMD.zip)
  • round 2: SIMD_Round2.zip

Gaëtan Leurent, Charles Bouillaguet, Pierre-Alain Fouque - SIMD Is a Message Digest

,2009

http://www.di.ens.fr/~leurent/files/SIMD.pdf
Bibtex

Author : Gaëtan Leurent, Charles Bouillaguet, Pierre-Alain Fouque
Title : SIMD Is a Message Digest
In : -
Address :
Date : 2009

Gaëtan Leurent, Charles Bouillaguet, Pierre-Alain Fouque - SIMD Is a Message Digest

,2008

http://ehash.iaik.tugraz.at/uploads/4/4e/Simd.pdf
Bibtex

Author : Gaëtan Leurent, Charles Bouillaguet, Pierre-Alain Fouque
Title : SIMD Is a Message Digest
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.

2.1 Hash function

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

Recommended security parameter: 2.k=2.16 steps

Type of Analysis	Hash Size (n)	Parameters	Compression Function Calls	Memory Requirements	Reference

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