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- CAST-256 abstract "In cryptography, CAST-256 (or CAST6) is a symmetric-key block cipher published in June 1998. It was submitted as a candidate for the Advanced Encryption Standard (AES); however, it was not among the five AES finalists. It is an extension of an earlier cipher, CAST-128; both were designed according to the "CAST" design methodology invented by Carlisle Adams and Stafford Tavares. Howard Heys and Michael Wiener also contributed to the design. CAST-256 uses the same elements as CAST-128, including S-boxes, but is adapted for a block size of 128 bits — twice the size of its 64-bit predecessor. (A similar construction occurred in the evolution of RC5 into RC6). Acceptable key sizes are 128, 160, 192, 224 or 256 bits. CAST-256 is composed of 48 rounds, sometimes described as 12 "quad-rounds", arranged in a generalised Feistel network.In RFC 2612, the authors state that, "The CAST-256 cipher described in this document is available worldwide on a royalty-free and licence-free basis for commercial and non-commercial uses."Currently, the best public cryptanalysis of CAST-256 in the standard single secret key setting that works for all keys is the zero-correlation cryptanalysis breaking 28 rounds with 2246.9 time and 298.8 data.".
- CAST-256 wikiPageExternalLink Cipher_Reference_Home.html.
- CAST-256 wikiPageExternalLink co040410.htm.
- CAST-256 wikiPageExternalLink cs.html.
- CAST-256 wikiPageID "612143".
- CAST-256 wikiPageRevisionID "582949128".
- CAST-256 blockSize "128".
- CAST-256 derivedFrom CAST-128.
- CAST-256 designers "Carlisle Adams, Stafford Tavares, Howard Heys, Michael Wiener".
- CAST-256 hasPhotoCollection CAST-256.
- CAST-256 keySize "128160192224".
- CAST-256 name "CAST-256".
- CAST-256 publishDate "1998".
- CAST-256 rounds "48".
- CAST-256 structure "generalised Feistel network".
- CAST-256 subject Category:Block_ciphers.
- CAST-256 comment "In cryptography, CAST-256 (or CAST6) is a symmetric-key block cipher published in June 1998. It was submitted as a candidate for the Advanced Encryption Standard (AES); however, it was not among the five AES finalists. It is an extension of an earlier cipher, CAST-128; both were designed according to the "CAST" design methodology invented by Carlisle Adams and Stafford Tavares. Howard Heys and Michael Wiener also contributed to the design.".
- CAST-256 label "CAST-256".
- CAST-256 label "CAST-256".
- CAST-256 label "CAST-256".
- CAST-256 label "CAST-256".
- CAST-256 label "CAST-256".
- CAST-256 label "CAST-256".
- CAST-256 label "CAST-256".
- CAST-256 sameAs CAST-256.
- CAST-256 sameAs CAST-256.
- CAST-256 sameAs CAST-256.
- CAST-256 sameAs CAST-256.
- CAST-256 sameAs CAST-256.
- CAST-256 sameAs m.02wgsy.
- CAST-256 sameAs Q1022875.
- CAST-256 sameAs Q1022875.
- CAST-256 wasDerivedFrom CAST-256?oldid=582949128.
- CAST-256 isPrimaryTopicOf CAST-256.