翻訳と辞書 Words near each other ・ FE Dinshaw ・ Fe Fi (The Old Man Died) ・ Fe y Alegría ・ Fe'fe' language ・ Fe'i banana ・ Fe, Esperanza, Caridad ・ FE-Schrift ・ Fe-TV ・ FE-β-CPPIT ・ Fe3+-transporting ATPase ・ FEA ・ Fea Jur ・ Fea's muntjac ・ Fea's petrel ・ Fea's tree-rat ・ FEA-M ・ Feable Weiner ・ Feadship ・ Feadz ・ Feadóga Stáin ・ Feadóga Stáin 2 ・ Feaella affinis ・ Feaellidae ・ Feaelloidea ・ FEAF ・ Feagaville, Maryland ・ Feagin ・ Feagin School of Dramatic Art ・ Feake ・ Feakle 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 FEA-M ： ウィキペディア英語版 FEA-M In cryptography, FEA-M (Fast Encryption Algorithm for Multimedia) is a block cipher developed in 2001 by X. Yi, C. H. Tan, C. K. Siew, and M. R. Syed. With the unusually large block size of 4096 bits, all of FEA-M's calculations operate on 64×64 binary matrices. Unlike most block ciphers, FEA-M does not use multiple rounds of encryption. Each block is encrypted using just two multiplications and two additions. The data is encrypted using a pair of session keys chosen for just that message. The key is an invertible matrix used to encrypt the session keys, and the encrypted session keys must be sent along with the ciphertext. Since only invertible matrices can be used for the key, the effective key size is about 4094.2 bits. FEA-M is insecure; an attack found by Youssef and Tavares (2003) recovers the secret key using only 1 known plaintext and 2 chosen plaintexts. ==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「FEA-M」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.