- Square (cipher)
Infobox block cipher
name = Square
caption =
designers =Joan Daemen ,Vincent Rijmen
publish date = 1997
derived from =
derived to = AES,CRYPTON ,Twofish , Serpent
key size = 128 bits
block size = 128 bits
structure =substitution-permutation network
rounds = 8
cryptanalysis =In
cryptography , Square (sometimes written SQUARE) is ablock cipher invented byJoan Daemen andVincent Rijmen . The design, published in1997 , is a forerunner to theRijndael algorithm, which has been adopted as theAdvanced Encryption Standard . Square was introduced together with a new form ofcryptanalysis discovered byLars Knudsen , called the "Square attack ".The structure of Square is a
substitution-permutation network with eight rounds, operating on 128-bit blocks and using a 128-bit key.Square is not patented.
References
* cite conference
author = Joan Daemen, Lars Knudsen, Vincent Rijmen
title = The Block Cipher Square
booktitle =Fast Software Encryption (FSE) 1997, Volume 1267 of Lecture Notes in Computer Science
pages = 149–165
publisher =Springer-Verlag
date = 1997
location =Haifa, Israel
url = http://www.esat.kuleuven.ac.be/~cosicart/pdf/VR-9700.PDF
format =PDF
accessdate = 2007-02-15External links
* [http://www.users.zetnet.co.uk/hopwood/crypto/scan/cs.html#Square SCAN's entry for Square]
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