Editing Whirlpool (hash function) (section)

{{Short description|Cryptographic hash function}}
{{redirect|WHIRLPOOL||Whirlpool (disambiguation)}}
{{Infobox encryption method
|name           = Whirlpool
|image          = 
|caption        = 
|designers      = [[Vincent Rijmen]], [[Paulo S. L. M. Barreto]]
|publish date   = 2000, 2001, 2003
|series         = 
|derived from   = [[Square (cipher)|Square]], [[Advanced Encryption Standard|AES]]
|derived to     = 
|related to     = 
|certification  = [[NESSIE]]
|digest size    = 512 bits
|key size       =   <!--(block or stream ciphers)-->
|security claim = Large hashsum size
|block size     =   <!--(block ciphers)-->
|state size     =   <!--(stream ciphers)-->
|structure      = [[Miyaguchi-Preneel]]
|rounds         = 10
|cryptanalysis  = In 2009, a [[rebound attack]] was announced that presents full collisions against 4.5 rounds of Whirlpool in 2<sup>120</sup> operations, semi-free-start collisions against 5.5 rounds in 2<sup>120</sup> time and semi-free-start near-collisions against 7.5 rounds in 2<sup>128</sup> time.<ref>{{cite conference
 | author=Florian Mendel1, Christian Rechberger, Martin Schläffer, Søren S. Thomsen
 | date=2009-02-24
 | title=The Rebound Attack: Cryptanalysis of Reduced Whirlpool and Grøstl
 | conference=Fast Software Encryption: 16th International Workshop
 | url=https://www.cosic.esat.kuleuven.be/fse2009/slides/2402_1150_Schlaeffer.pdf
 }}</ref>
}}

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]].