翻訳と辞書 Words near each other ・ Multiple correspondence analysis ・ Multiple cropping ・ Multiple cutaneous leiomyoma ・ Multiple deprivation index ・ Multiple description coding ・ Multiple disabilities ・ Multiple discovery ・ Multiple discriminant analysis ・ Multiple dispatch ・ Multiple displacement amplification ・ Multiple document interface ・ Multiple drafts model ・ Multiple drug resistance ・ Multiple edges ・ Multiple EM for Motif Elicitation ・ Multiple encryption ・ Multiple endocrine neoplasia ・ Multiple endocrine neoplasia type 1 ・ Multiple endocrine neoplasia type 2 ・ Multiple endocrine neoplasia type 2b ・ Multiple Epidermal Growth Factor-like Domains 8 ・ Multiple epiphyseal dysplasia ・ Multiple Equivalent Simultaneous Offers ・ Multiple evanescent white dot syndrome ・ Multiple exciton generation ・ Multiple exposure ・ Multiple factor analysis ・ Multiple familial trichoepithelioma ・ Multiple follicular unit grafts ・ Multiple frames interface 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 Multiple encryption ： ウィキペディア英語版 Multiple encryption Multiple encryption is the process of encrypting an already encrypted message one or more times, either using the same or a different algorithm. It is also known as cascade encryption, cascade ciphering, multiple encryption, and superencipherment. Superencryption refers to the outer-level encryption of a multiple encryption. ==Independent keys== Picking any two ciphers, if the key used is the same for both, the second cipher could possibly undo the first cipher, partly or entirely. This is true of ciphers where the decryption process is exactly the same as the encryption process—the second cipher would completely undo the first. If an attacker were to recover the key through cryptanalysis of the first encryption layer, the attacker could possibly decrypt all the remaining layers, assuming the same key is used for all layers. To prevent that risk, one can use keys that are statistically independent for each layer (e.g. independent RNGs). 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「Multiple encryption」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.