- ARIA (cipher)
Infobox block cipher
name = ARIA
designers =
publish date = 2003
derived from = AES
derived to =
related to =
certification =South Korea n standard
key size = 128, 192, or 256 bits
block size = 128 bits
structure =Substitution-permutation network
rounds = 12, 14, or 16
cryptanalysis =Linear cryptanalysis can break 7 rounds using 277known plaintexts Incryptography , ARIA is ablock cipher designed in 2003 by a large group ofSouth Korea n researchers. In 2004, theKorean Agency for Technology and Standards selected it as a standard cryptographic technique.The algorithm uses a
substitution-permutation network structure based on AES. The interface is the same as AES: 128-bit block size withkey size of 128, 192, or 256 bits. The number of rounds is 12, 14, or 16, depending on the key size. ARIA uses 2 8×8-bit S-boxes and their inverses in alternate rounds; one of these is theRijndael S-box .The
key schedule processes the key using a 3-round 256-bitFeistel cipher , with the binary expansion of 1/"π" as a source of "nothing up my sleeve number s".References
* cite paper
author = A. Biryukov, C. De Cannière, J. Lano, B. Preneel, S. B. Örs
title = Security and Performance Analysis of ARIA
version = Version 1.2—Final Report
publisher =Katholieke Universiteit Leuven
date =January 7 2004
url = http://www.cosic.esat.kuleuven.be/publications/article-500.ps
format =PostScript
accessdate = 2007-03-02
* cite paper
author = Wenling Wu, Wentao Zhang, and Dengguo Feng
title = Impossible Differential Cryptanalysis of ARIA and Camellia
date = 2006
url = http://eprint.iacr.org/2006/350
format =PDF
accessdate = 2007-01-19External links
* [http://www.nsri.re.kr/ARIA/index-e.html ARIA home]
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