Difference between revisions of "SIMD"
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=== Hash function === | === Hash function === | ||
| − | Here we list results on the | + | Here we list results on the hash function according to the NIST requirements. The only allowed modification is to change the security parameter. |
| − | Recommended security parameter: | + | Recommended security parameter: total number of steps = 32 |
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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). | 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). | ||
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| + | Recommended security parameter: total number of steps = 32 | ||
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Revision as of 13:32, 15 February 2010
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
BibtexAuthor : 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
BibtexAuthor : 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 hash function according to the NIST requirements. The only allowed modification is to change the security parameter.
Recommended security parameter: total number of steps = 32
| 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).
Recommended security parameter: total number of steps = 32
| Type of Analysis | Hash Function Part | Hash Size (n) | Parameters/Variants | Compression Function Calls | Memory Requirements | Reference |
| distinguisher | compression | 512 | full (Round 1) | 5*2425.28 | - | Mendel, Nad |
Florian Mendel, Tomislav Nad - A Distinguisher for the Compression Function of SIMD-512
