DEAL
-
DEAL 
Round function of DEALGeneral Designers Lars Knudsen First published 1998 Derived from DES Related to Ladder-DES Cipher detail Key sizes 128, 192 or 256 bits Block sizes 128 bits Structure Nested Feistel network Rounds 6 (128- and 192-bit key) or 8 (256-bit key) In cryptography, DEAL (Data Encryption Algorithm with Larger blocks) is a block cipher derived from the Data Encryption Standard (DES). The design was proposed in a report by Lars Knudsen in 1998, and was submitted to the AES contest by Richard Outerbridge (who notes that Knudsen had presented the design at the SAC conference in 1997).
DEAL is a Feistel network which uses DES as the round function. It has a 128-bit block size and a variable key size of either 128, 192, or 256 bits. For key sizes of 128 and 192 bits, the cipher uses 6 rounds, increasing to 8 for the 256-bits size. The scheme has a comparable performance to Triple DES, and was relatively slow compared to many other AES candidates.
See also
- Ladder-DES
- Luby-Rackoff
External links
References
- John Kelsey, Bruce Schneier (August 1999). "Key-Schedule Cryptanalysis of DEAL" (PDF/PostScript). 6th Annual International Workshop on Selected Areas in Cryptography (SAC '99). Kingston, Ontario: Springer-Verlag. pp. 118–134. http://www.schneier.com/paper-deal.html. Retrieved 2007-08-23.
- Stefan Lucks: On Security of the 128-Bit Block Cipher DEAL. Fast Software Encryption 1999: 60–70
Categories:- Block ciphers
- Data Encryption Standard
- Feistel ciphers
- Cryptography stubs
Wikimedia Foundation. 2010.
Look at other dictionaries:
DEAL — Создатель: Кнудсен, Ларс … Википедия
Deal — may refer to: Deal (song), a song by Tom T. Hall Deal, a song from Jerry Garcia s 1972 album, Garcia Deal (automobile), an automobile built in Jonesville, Michigan, from 1905 to 1911 Deal, Kent, a town in Kent, England Deal, New Jersey, a Borough … Wikipedia
Deal — bezeichnet Deal (Kent), Stadt in der Grafschaft Kent, England Deal (Alba), Ort im Kreis Alba, Rumänien DEAL (Data Encryption Algorithm with Larger blocks), einen kryptographischen Algorithmus im Englischen („handeln“) und als Anglizismus: den… … Deutsch Wikipedia
deal — DEAL, dealuri, s.n. 1. Formă de relief pozitivă care se prezintă ca o ridicătură a scoarţei pământului mai mică decât muntele, dar mai mare decât colina. ♢ loc. adv. La deal = în sensul urcuşului, în sus. ♢ loc. prep. (De) la deal de... = mai sus … Dicționar Român
deal — Ⅰ. deal [1] ► VERB (past and past part. dealt) 1) distribute (cards) to players for a game or round. 2) (deal out) distribute or apportion. 3) take part in commercial trading of a commodity. 4) informal buy and sell illegal drugs … English terms dictionary
Deal — (d[=e]l), n. [OE. del, deel, part, AS. d[=ae]l; akin to OS. d[=e]l, D. & Dan. deel, G. theil, teil, Icel. deild, Sw. del, Goth. dails. [root]65. Cf. 3d {Dole}.] 1. A part or portion; a share; hence, an indefinite quantity, degree, or extent,… … The Collaborative International Dictionary of English
Deal — Deal, v. i. 1. To make distribution; to share out in portions, as cards to the players. [1913 Webster] 2. To do a distributing or retailing business, as distinguished from that of a manufacturer or producer; to traffic; to trade; to do business;… … The Collaborative International Dictionary of English
DEAL — Un tour de DEAL avec Ej un bloc DES Résumé … Wikipédia en Français
deal — deal1 [dēl] vt. dealt, dealing [ME delen < OE dǣlan, to divide, share, akin to Ger teilen: see DEAL2] 1. to portion out or distribute 2. to give; administer [to deal someone a blow ] ☆ 3. Slang to sell (illegal drugs) … English World dictionary
Deal$ — is a dollar store chain in the midwest and southeast United States. It was acquired by Save A Lot in 2002 and by Dollar Tree in 2006. There are 138 Deal$ stores across many U.S. states, most of them are located in Missouri, mostly in and around… … Wikipedia
