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- Grøstl abstract "Grøstl is a cryptographic hash function submitted to the NIST hash function competition by Praveen Gauravaram, Lars Knudsen, Krystian Matusiewicz, Florian Mendel, Christian Rechberger, Martin Schläffer, and Søren S. Thomsen. Grøstl was chosen as one of the five finalists of the competition. It uses the same S-box as AES in a custom construction. The authors claim speeds of up to 21.4 cycles per byte on an Intel Core 2 Duo.According to the submission document, the name "Grøstl" is a multilingual play-on-words, referring to an Austrian dish that is very similar to hash (food).Like other hash functions in the MD5/SHA family, Grøstl divides the input into blocks and iteratively computes hi = f(hi−1, mi). However, Grøstl maintains a hash state at least twice the size of the final output (512 or 1024 bits), which is only truncated at the end of hash computation.The compression function f is based on a pair of 256- or 512-bit permutation functions P and Q, and is defined as: f(h, m) = P(h ⊕ m) ⊕ Q(m) ⊕ hThe permutation functions P and Q are heavily based on the Rijndael (AES) block cipher, but operate on 8×8 or 8×16 arrays of bytes, rather than 4×4. Like AES, each round consists of four operations: AddRoundKey (the Grøstl round keys are fixed, but differ between P and Q) SubBytes (this uses the Rijndael S-box, allowing sharing with AES implementations) ShiftBytes (expanded compared to AES, this also differs between P and Q, and 512- and 1024-bit versions) MixColumns (using an 8×8 matrix rather than Rijndael's 4×4)Unlike Rijndael, all rounds are identical and there is no final AddRoundKey operation. 10 rounds are recommended for the 512-bit permutation, and 14 rounds for the 1024-bit version.The final double-width hash receives a final output transformation of Ω(h) = h ⊕ P(h)and is then truncated to the desired width. This is equivalent to applying a final iteration of the compression function using an all-zero message block m, followed by a (cryptographically insignificant) exclusive-or with the fixed constant Q(0).".
- Grøstl wikiPageExternalLink index.php?id=source_codes.
- Grøstl wikiPageExternalLink www.groestl.info.
- Grøstl wikiPageID "20394803".
- Grøstl wikiPageLength "4892".
- Grøstl wikiPageOutDegree "25".
- Grøstl wikiPageRevisionID "666686100".
- Grøstl wikiPageWikiLink Advanced_Encryption_Standard.
- Grøstl wikiPageWikiLink Avalanche_effect.
- Grøstl wikiPageWikiLink Category:NIST_hash_function_competition.
- Grøstl wikiPageWikiLink Christian_Rechberger.
- Grøstl wikiPageWikiLink Collision_attack.
- Grøstl wikiPageWikiLink Core_2.
- Grøstl wikiPageWikiLink Cryptographic_hash_function.
- Grøstl wikiPageWikiLink Cycles_per_byte.
- Grøstl wikiPageWikiLink Florian_Mendel.
- Grøstl wikiPageWikiLink Hash_(food).
- Grøstl wikiPageWikiLink Intel_Core_2.
- Grøstl wikiPageWikiLink Krystian_Matusiewicz.
- Grøstl wikiPageWikiLink Lars_Knudsen.
- Grøstl wikiPageWikiLink Martin_Schläffer.
- Grøstl wikiPageWikiLink NIST_hash_function_competition.
- Grøstl wikiPageWikiLink Praveen_Gauravaram.
- Grøstl wikiPageWikiLink Rijndael.
- Grøstl wikiPageWikiLink S-box.
- Grøstl wikiPageWikiLink Søren_S._Thomsen.
- Grøstl wikiPageWikiLink The_quick_brown_fox_jumps_over_the_lazy_dog.
- Grøstl wikiPageWikiLinkText "Grøstl".
- Grøstl certification NIST_hash_function_competition.
- Grøstl cryptanalysis "Collision attack on 5 rounds".
- Grøstl designers "Praveen Gauravaram, Lars Knudsen, Krystian Matusiewicz, Florian Mendel, Christian Rechberger, Martin Schläffer, and Søren S. Thomsen".
- Grøstl digestSize "256".
- Grøstl hasPhotoCollection Grøstl.
- Grøstl name "Grøstl".
- Grøstl relatedTo Advanced_Encryption_Standard.
- Grøstl rounds "10".
- Grøstl speed "21.4".
- Grøstl wikiPageUsesTemplate Template:Crypto-stub.
- Grøstl wikiPageUsesTemplate Template:Cryptography_navbox.
- Grøstl wikiPageUsesTemplate Template:Infobox_cryptographic_hash_function.
- Grøstl wikiPageUsesTemplate Template:Reflist.
- Grøstl subject Category:NIST_hash_function_competition.
- Grøstl comment "Grøstl is a cryptographic hash function submitted to the NIST hash function competition by Praveen Gauravaram, Lars Knudsen, Krystian Matusiewicz, Florian Mendel, Christian Rechberger, Martin Schläffer, and Søren S. Thomsen. Grøstl was chosen as one of the five finalists of the competition. It uses the same S-box as AES in a custom construction.".
- Grøstl label "Grøstl".
- Grøstl sameAs Grøstl.
- Grøstl sameAs Grøstl.
- Grøstl sameAs m.04zxsx5.
- Grøstl sameAs Grøstl.
- Grøstl sameAs Q1551743.
- Grøstl sameAs Q1551743.
- Grøstl wasDerivedFrom Grøstl?oldid=666686100.
- Grøstl isPrimaryTopicOf Grøstl.