翻訳と辞書 Words near each other ・ Padded mailer ・ Padded Room (mixtape) ・ Padded V-hull ・ Padden ・ Paddenswick Road tube station ・ Paddhari ・ Paddi Edwards ・ Paddi Khalsa ・ Paddick ・ Paddie Bell ・ Paddie O'Neil ・ Padding ・ Padding (cryptography) ・ Padding (disambiguation) ・ Padding argument ・ Padding oracle attack ・ Paddington ・ Paddington (1975 TV series) ・ Paddington (disambiguation) ・ Paddington (film) ・ Paddington (UK Parliament constituency) ・ Paddington Academy ・ Paddington alcohol test ・ Paddington Arm ・ Paddington Basin ・ Paddington Bear ・ Paddington Bear (1989 TV series) ・ Paddington Bear's Gold Record ・ Paddington Gold Mine ・ Paddington Green 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 Padding oracle attack ： ウィキペディア英語版 Padding oracle attack In cryptography, a padding oracle attack is an attack which is performed using the padding of a cryptographic message. In cryptography, variable-length plaintext messages often have to be padded (expanded) to be compatible with the underlying cryptographic primitive. The attack relies on having a "padding oracle" who freely responds to queries about whether a message is correctly padded or not. Padding oracle attacks are mostly associated with CBC mode decryption used within block ciphers. Padding modes for asymmetric algorithms such as OAEP may also be vulnerable to padding oracle attacks. ==Symmetric cryptography== In symmetric cryptography, the padding oracle attack can be applied to the CBC mode of operation, where the "oracle" (usually a server) leaks data about whether the padding of an encrypted message is correct or not. Such data can allow attackers to decrypt (and sometimes encrypt) messages through the oracle using the oracle's key, without knowing the encryption key. 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「Padding oracle attack」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.