翻訳と辞書 Words near each other ・ Cryptosporangium ・ Cryptosporangium aurantiacum ・ Cryptosporella ・ Cryptosporella umbrina ・ Cryptospores ・ Cryptosporidiosis ・ Cryptosporidium ・ Cryptosporidium fragile ・ Cryptosporidium hominis ・ Cryptosporidium muris ・ Cryptosporidium parvum ・ Cryptosporiopsis tarraconensis ・ Cryptosporium minimum ・ Cryptomeria (disambiguation) ・ Cryptomeria (moth) ・ Cryptomeria cipher ・ Cryptometrion ・ Cryptomma ・ Cryptomnesia ・ Cryptomnesia (album) ・ Cryptomonad ・ Cryptomonadales ・ Cryptomonas ・ Cryptomorpha ・ Cryptomorphism ・ Cryptomphalina ・ Cryptomyces ・ Cryptomycetaceae ・ Cryptomycina ・ Cryptomycocolacomycetes Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Cryptomeria cipher ： ウィキペディア英語版 Cryptomeria cipher The Cryptomeria cipher, also called C2, is a proprietary block cipher defined and licensed by the 4C Entity. It is the successor to CSS algorithm (used for DVD-Video) and was designed for the CPRM/CPPM digital rights management scheme which are used by DRM-restricted Secure Digital cards and DVD-Audio discs. == Cipher details == The C2 symmetric key algorithm is a 10-round Feistel cipher. Like DES, it has a key size of 56 bits and a block size of 64 bits. The encryption and decryption algorithms are available for peer review, but implementations require the so-called "secret constant", the values of the substitution box (S-box), which are only available under a license from the 4C Entity. The 4C Entity licenses a different set of S-boxes for each application (such as DVD-Audio, DVD-Video and CPRM).〔 (Abstract is in German, rest is in English)〕 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「Cryptomeria cipher」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.