- Grand Cru (cipher)
Infobox block cipher
name = Grand Cru
publish date = 2000
derived from =
key size = 128 bits
block size = 128 bits
rounds = 10
cryptography, Grand Cru is a block cipherinvented in 2000 by Johan Borst. It was submitted to the NESSIEproject, but was not selected.
Grand Cru is a 10-round
substitution-permutation networkbased largely on Rijndael(or AES). It replaces a number of Rijndael's unkeyed operations with key-dependent ones, in a way consistent with the security purposes of each operation. The intent is to produce a cipher at least as secure as Rijndael, and perhaps much more secure. The block size and key sizeare both 128 bits, and the key scheduleis the same as Rijndael's.
Grand Cru is designed on the principle of "multiple layered security". It is equivalent to a chain of 4 subciphers with independent keys, such that if 3 of the keys are known, the remaining cipher should still be secure.
* [https://www.cosic.esat.kuleuven.be/nessie/deliverables/D13.pdf Security evaluation of NESSIE first phase (PDF)]
Wikimedia Foundation. 2010.
См. также в других словарях:
Cru (wine) — This article is about the wine classification. For the block cipher, see Grand Cru (cipher). For use with other products such as beer chocolate, see Grand cru (food and drink). For other uses, see Cru. Cru is a French wine term which is… … Wikipedia
Cipher security summary — This article summarizes publicly known attacks against ciphers. Note that not all entries may be up to date. Table color key No known successful attacks Theoretical break Attack demonstrated in practice The Best attack column lists the complexity … Wikipedia
Cipher Pol — (サイファーポール, Saifā Pōru?) est un organisme de fiction du manga One Piece. Le terme vient de cipher, qui signifie chiffre et de pol, qui est une abréviation de police. Cipher Pol est une branche du gouvernement chargée de l espionnage et des… … Wikipédia en Français
Block cipher modes of operation — This article is about cryptography. For method of operating , see modus operandi. In cryptography, modes of operation is the procedure of enabling the repeated and secure use of a block cipher under a single key. A block cipher by itself… … Wikipedia
Block cipher — In cryptography, a block cipher is a symmetric key cipher operating on fixed length groups of bits, called blocks, with an unvarying transformation. A block cipher encryption algorithm might take (for example) a 128 bit block of plaintext as… … Wikipedia
Cryptomeria cipher — The Feistel function of the Cryptomeria cipher. General Designers 4C Entity First published … Wikipedia
Mercy (cipher) — This article is about the block cipher. For other uses, see Mercy (disambiguation). Mercy General Designers Paul Crowley First published April 2000 Derived from WAKE … Wikipedia
DFC (cipher) — This article is about the block cipher. For other uses, see DFC (disambiguation). DFC General Designers Jacques Stern, Serge Vaudenay, et al. First published 1998 Related to COCONUT98 Cipher detail … Wikipedia
Crab (cipher) — This article is about the block cipher. For other uses, see Crab (disambiguation). Crab General Designers Burt Kaliski, Matt Robshaw First published 1993 Derived from MD5 Related to SHACAL … Wikipedia
Nimbus (cipher) — This article is about the block cipher. For other uses, see Nimbus (disambiguation). Nimbus General Designers Alexis Machado First published 2000 Cipher detail Key sizes 128 bits Block sizes … Wikipedia