翻訳と辞書 Words near each other ・ Ahmad Al-Badawi Mosque ・ Ahmad al-Bakkai al-Kunti ・ Ahmad al-Buni ・ Ahmad Al-Essawi ・ Ahmad al-Faqi ・ Ahmad al-Ghashmi ・ Ahmad al-Ghumari ・ Ahmad al-Hassan ・ Ahmad Al-Jaber Al-Sabah ・ Ahmad Al-Khamisi ・ Ahmad al-Khatib ・ Ahmad al-Mansur ・ Ahmad al-Muhajir ・ Ahmad al-Muqtadir ・ Ahmad Al-Qabbanji ・ Ahmad al-Qalqashandi ・ Ahmad al-Safi al-Najafi ・ Ahmad Al-Sagheer ・ Ahmad Al-Saraj ・ Ahmad Al-Shahhat ・ Ahmad al-Sharabati ・ Ahmad al-Tayyeb Aldj ・ Ahmad Al-Thawadi ・ Ahmad al-Tifashi ・ Ahmad al-Tijani ・ Ahmad al-Wafi (Abadullah) ・ Ahmad Alaadeen ・ Ahmad Aladdin ・ Ahmad Alamolhoda ・ Ahmad Alan 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 Ahmad al-Qalqashandi ： ウィキペディア英語版 Ahmad al-Qalqashandi Shihab al-Din abu 'l-Abbas Ahmad ben Ali ben Ahmad Abd Allah al-Qalqashandi (1355 or 1356 – 1418) was a medieval Egyptian writer and mathematician. Born in a village in the Nile Delta, al-Qalqashandi was scribe of the scroll (''katib al-darj'') in the Mamluk chancery in Cairo. He is the author of ''Subh al-a 'sha'', completed in fourteen volumes in 1412, "one of the final expressions of the genre of Arabic administrative literature". The ''Subh al-a 'sha'' included a section on cryptology. This information was attributed to Ibn al-Durayhim who lived from 1312 to 1361, but whose writings on cryptology have been lost. The list of ciphers in this work included both substitution and transposition, and for the first time, a cipher with multiple substitutions for each plaintext letter. Also traced to Ibn al-Durayhim is an exposition on and worked example of cryptanalysis, including the use of tables of letter frequencies and sets of letters which can not occur together in one word. == References == 〔 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「Ahmad al-Qalqashandi」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.