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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク SHARK (cipher) ： ウィキペディア英語版 SHARK In cryptography, SHARK is a block cipher identified as one of the predecessors of Rijndael (the Advanced Encryption Standard). SHARK has a 64-bit block size and a 128-bit key size. It is a six round SP-network which alternates a key mixing stage with linear and non-linear transformation layers. The linear transformation uses an MDS matrix representing a Reed-Solomon error correcting code in order to guarantee good diffusion. The nonlinear layer is composed of eight 8×8-bit S-boxes based on the function ''F(x) = x−1'' over ''GF(28)''. Five rounds of a modified version of SHARK can be broken using an interpolation attack (Jakobsen and Knudsen, 1997). ==See also== * KHAZAD * Square 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「SHARK」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.