BLAKE
From The ECRYPT Hash Function Website
1 The algorithm
- Author(s): Jean-Philippe Aumasson, Luca Henzen, Willi Meier, Raphael C.-W. Phan
- Website: http://131002.net/blake/
- NIST submission package:
- round 1/2: BLAKE_Round2.zip (old versions: BLAKE.zip, BLAKEUpdate.zip)
Jean-Philippe Aumasson, Luca Henzen, Willi Meier, Raphael C.-W. Phan - SHA-3 proposal BLAKE
- ,2008
- http://131002.net/blake/blake.pdf
BibtexAuthor : Jean-Philippe Aumasson, Luca Henzen, Willi Meier, Raphael C.-W. Phan
Title : SHA-3 proposal BLAKE
In : -
Address :
Date : 2008
2 Cryptanalysis
We distinguish between two cases: results on the complete hash function, and results on the building blocks. A description of these 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.
| Type of Analysis | Hash Size (n) | Parameters | Compression Function Calls | Memory Requirements | Reference |
| preimage | 224,256 | 2.5/10 rounds | 2n-15 | - | Ji,Liangyu |
| preimage | 384 | 2.5/10 rounds | 2355 | - | Ji,Liangyu |
| preimage | 512 | 2.5/10 rounds | 2481 | - | Ji,Liangyu |
2.2 Underlying building blocks
Here we list results that 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 |
| free-start collision | hash | 224,256 | 2.5/10 rounds | 2n/2-16 | - | Ji,Liangyu |
| free-start collision | hash | 384,512 | 2.5/10 rounds | 2n/2-32 | - | Ji,Liangyu |
| near-collision | compression function | 256 | 4/10 rounds (nb. 6-9) | 242 | - | Guo,Matusiewicz |
Li Ji, Xu Liangyu - Attacks on Round-Reduced BLAKE
- ,2009
- http://eprint.iacr.org/2009/238.pdf
BibtexAuthor : Li Ji, Xu Liangyu
Title : Attacks on Round-Reduced BLAKE
In : -
Address :
Date : 2009
Jian Guo, Krystian Matusiewicz - Round-Reduced Near-Collisions of BLAKE-32
