Keccak
From The ECRYPT Hash Function Website
Contents |
1 The algorithm
- Author(s): Guido Bertoni, Joan Daemen, Michaël Peeters and Gilles Van Assche
- Website: http://keccak.noekeon.org/
- NIST submission package:
- round 1: Keccak.zip
- round 2: Keccak_Round2.zip
- Submission to NIST (Round 2), 2009
- [Electronic Edition] [Bibtex] Author : G. Bertoni, J. Daemen, M. Peeters, G. Van Assche
Title : Keccak specifications
In : Submission to NIST (Round 2) -
G. Bertoni, J. Daemen, M. Peeters, G. Van Assche - Keccak sponge function family main document
- Submission to NIST (Round 2), 2009
- [Electronic Edition] [Bibtex] Author : G. Bertoni, J. Daemen, M. Peeters, G. Van Assche
Title : Keccak sponge function family main document
In : Submission to NIST (Round 2) -
G. Bertoni, J. Daemen, M. Peeters, G. Van Assche - Keccak specifications
- Submission to NIST (Round 1), 2008
- [Electronic Edition] [Bibtex] Author : G. Bertoni, J. Daemen, M. Peeters, G. Van Assche
Title : Keccak specifications
In : Submission to NIST (Round 1) -
G. Bertoni, J. Daemen, M. Peeters, G. Van Assche - Keccak sponge function family main document
- Submission to NIST (Round 1), 2008
- [Electronic Edition] [Bibtex] Author : G. Bertoni, J. Daemen, M. Peeters, G. Van Assche
Title : Keccak sponge function family main document
In : Submission to NIST (Round 1) -
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: 24 rounds (Keccak-f [1600])
| 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: 24 rounds (Keccak-f [1600])
| Type of Analysis | Hash Function Part | Hash Size (n) | Parameters/Variants | Compression Function Calls | Memory Requirements | Reference |
| distinguisher(1) | permutation | all | 18 rounds | 21370 | Boura,Canteaut | |
| distinguisher(1) | permutation | all | 16 rounds | 21023.88 | Aumasson,Meier | |
| key recovery | secret-prefix MAC | 224 | 4 rounds | 219 | ? | Joel,Lathrop |
| observations | permutation | all | Aumasson,Khovratovich |
(1)The Keccak team commented on these distinguishers and provide generic constructions in this note.
G. Bertoni, J. Daemen, M. Peeters, G. Van Assche - Note on zero-sum distinguishers of Keccak-f
- NIST mailing list, 2010
- [Electronic Edition] [Bibtex] Author : G. Bertoni, J. Daemen, M. Peeters, G. Van Assche
Title : Note on zero-sum distinguishers of Keccak-f
In : NIST mailing list -
Christina Boura, Anne Canteaut - A Zero-Sum property for the Keccak-f Permutation with 18 Rounds
- NIST mailing list, 2010
- [Electronic Edition] [Bibtex] Author : Christina Boura, Anne Canteaut[Abstract]
Title : A Zero-Sum property for the Keccak-f Permutation with 18 Rounds
In : NIST mailing list -
Jean-Philippe Aumasson, Willi Meier - Zero-sum distinguishers for reduced Keccak-f and for the core functions of Luffa and Hamsi
- NIST mailing list, 2009
- [Electronic Edition] [Bibtex] Author : Jean-Philippe Aumasson, Willi Meier[Abstract]
Title : Zero-sum distinguishers for reduced Keccak-f and for the core functions of Luffa and Hamsi
In : NIST mailing list -
Joel Lathrop - Cube Attacks on Cryptographic Hash Functions
- Available online, 2009
- [Electronic Edition] [Bibtex] Author : Joel Lathrop[Abstract]
Title : Cube Attacks on Cryptographic Hash Functions
In : Available online -
Jean-Philippe Aumasson, Dmitry Khovratovich - First Analysis of Keccak
