Whirlpool (cryptography)
| General | |
|---|---|
| Designers | Vincent Rijmen, Paulo S. L. M. Barreto |
| First published | 2000, 2001, 2003 |
| Derived from | Square, AES |
| Certification | NESSIE |
| Detail | |
| Digest sizes | 512 bits |
| Security claims | Large hashsum size |
| Structure | Miyaguchi-Preneel |
| Rounds | 10 |
| Best public cryptanalysis | |
| In 2009, a rebound attack was announced that presents full collisions against 4.5 rounds of Whirlpool in 2120 operations, semi-free-start collisions against 5.5 rounds in 2120 time and semi-free-start near-collisions against 7.5 rounds in 2128 time. | |
In computer science and cryptography, Whirlpool (sometimes styled WHIRLPOOL) is a cryptographic hash function. It was designed by Vincent Rijmen (co-creator of the Advanced Encryption Standard) and Paulo S. L. M. Barreto, who first described it in 2000.
The hash has been recommended by the NESSIE project. It has also been adopted by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC) as part of the joint ISO/IEC 10118-3 international standard.
Whirlpool is a hash designed after the Square block cipher, and is considered to be in that family of block cipher functions.
Whirlpool is a Miyaguchi-Preneel construction based on a substantially modified Advanced Encryption Standard (AES).
Whirlpool takes a message of any length less than 2256 bits and returns a 512-bit message digest.
The authors have declared that
The original Whirlpool will be called Whirlpool-0, the first revision of Whirlpool will be called Whirlpool-T and the latest version will be called Whirlpool in the following test vectors.
The Whirlpool hash function is a Merkle–Damgård construction based on an AES-like block cipher W in Miyaguchi-Preneel mode.
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