翻訳と辞書 Words near each other ・ Niherne ・ NIHF ・ Nihil ・ Nihil (disambiguation) ・ Nihil admirari ・ Nihil dicit ・ Nihil novi ・ Nihil obstat ・ Nihil Sine Deo ・ Nihilent ・ Nihilichnus ・ Nihilism ・ Nihilism (disambiguation) ・ Nihilist (band) ・ Nihilist (disambiguation) ・ Nihilist cipher ・ Nihilist Faction ・ Nihilist movement ・ Nihilist Records ・ Nihilist Spasm Band ・ Nihilistic ・ Nihility ・ Nihilumbra ・ Nihira Joshi ・ Nihiru ・ Nihit ・ Nihito Arakawa ・ Nihka ・ NIHL South Division 1 ・ Nihm District 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 Nihilist cipher ： ウィキペディア英語版 Nihilist cipher In the history of cryptography, the Nihilist cipher is a manually operated symmetric encryption cipher originally used by Russian Nihilists in the 1880s to organize terrorism against the tsarist regime. The term is sometimes extended to several improved algorithms used much later for communication by the First Chief Directorate with its spies. ==Description== First the encipherer constructs a Polybius square using a mixed alphabet. This is used to convert both the plaintext and a keyword to a series of two digit numbers. These numbers are then added together in the normal way to get the ciphertext, with the key numbers repeated as required. 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「Nihilist 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.