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- Twofish abstract "In cryptography, Twofish is a symmetric key block cipher with a block size of 128 bits and key sizes up to 256 bits. It was one of the five finalists of the Advanced Encryption Standard contest, but it was not selected for standardization. Twofish is related to the earlier block cipher Blowfish.Twofish's distinctive features are the use of pre-computed key-dependent S-boxes, and a relatively complex key schedule. One half of an n-bit key is used as the actual encryption key and the other half of the n-bit key is used to modify the encryption algorithm (key-dependent S-boxes). Twofish borrows some elements from other designs; for example, the pseudo-Hadamard transform (PHT) from the SAFER family of ciphers. Twofish has a Feistel structure like DES.On most software platforms Twofish was slightly slower than Rijndael (the chosen algorithm for Advanced Encryption Standard) for 128-bit keys, but it is somewhat faster for 256-bit keys.Twofish was designed by Bruce Schneier, John Kelsey, Doug Whiting, David Wagner, Chris Hall, and Niels Ferguson; the "extended Twofish team" who met to perform further cryptanalysis of Twofish and other AES contest entrants included Stefan Lucks, Tadayoshi Kohno, and Mike Stay.The Twofish cipher has not been patented and the reference implementation has been placed in the public domain. As a result, the Twofish algorithm is free for anyone to use without any restrictions whatsoever. It is one of a few ciphers included in the OpenPGP standard (RFC 4880). However, Twofish has seen less widespread usage than Blowfish, which has been available longer.".
- Twofish thumbnail Twofishalgo.svg?width=300.
- Twofish wikiPageExternalLink Cipher_Reference_Home.html.
- Twofish wikiPageExternalLink cs.html.
- Twofish wikiPageExternalLink VwAzSXEVbm8J.
- Twofish wikiPageExternalLink paper-twofish-paper.html.
- Twofish wikiPageExternalLink twofish-products.html.
- Twofish wikiPageExternalLink twofish.html.
- Twofish wikiPageID "26508356".
- Twofish wikiPageRevisionID "593155432".
- Twofish blockSize "128".
- Twofish caption "The Twofish algorithm".
- Twofish certification Advanced_Encryption_Standard_process.
- Twofish cryptanalysis "Truncated differential cryptanalysis requiring roughly 251 chosen plaintexts. Impossible differential attack that breaks 6 rounds out of 16 of the 256-bit key version using 2256 steps.".
- Twofish derivedFrom Blowfish_(cipher).
- Twofish derivedFrom SAFER.
- Twofish derivedFrom Square_(cipher).
- Twofish designers Bruce_Schneier.
- Twofish hasPhotoCollection Twofish.
- Twofish keySize "128192".
- Twofish name "Twofish".
- Twofish publishDate "1998".
- Twofish relatedTo Threefish.
- Twofish rounds "16".
- Twofish structure Feistel_cipher.
- Twofish subject Category:Feistel_ciphers.
- Twofish subject Category:Free_ciphers.
- Twofish type Abstraction100002137.
- Twofish type Cipher106254239.
- Twofish type Communication100033020.
- Twofish type FeistelCiphers.
- Twofish type FreeCiphers.
- Twofish type Message106253690.
- Twofish comment "In cryptography, Twofish is a symmetric key block cipher with a block size of 128 bits and key sizes up to 256 bits. It was one of the five finalists of the Advanced Encryption Standard contest, but it was not selected for standardization. Twofish is related to the earlier block cipher Blowfish.Twofish's distinctive features are the use of pre-computed key-dependent S-boxes, and a relatively complex key schedule.".
- Twofish label "Twofish".
- Twofish label "Twofish".
- Twofish label "Twofish".
- Twofish label "Twofish".
- Twofish label "Twofish".
- Twofish label "Twofish".
- Twofish label "Twofish".
- Twofish label "Twofish".
- Twofish label "Twofish".
- Twofish label "Twofish-encryptiealgoritme".
- Twofish label "双鱼算法".
- Twofish sameAs Twofish.
- Twofish sameAs Twofish.
- Twofish sameAs Twofish.
- Twofish sameAs Twofish.
- Twofish sameAs Twofish.
- Twofish sameAs Twofish.
- Twofish sameAs Twofish.
- Twofish sameAs Twofish-encryptiealgoritme.
- Twofish sameAs Twofish.
- Twofish sameAs Twofish.
- Twofish sameAs m.02kplt.
- Twofish sameAs Q747320.
- Twofish sameAs Q747320.
- Twofish sameAs Twofish.
- Twofish wasDerivedFrom Twofish?oldid=593155432.
- Twofish depiction Twofishalgo.svg.
- Twofish isPrimaryTopicOf Twofish.