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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Existential forgery ： ウィキペディア英語版 Digital signature forgery In a cryptographic digital signature or MAC system, digital signature forgery is the ability to create a pair consisting of a message $m$ and a signature (or MAC) $\backslash sigma$ that is valid for $m$, where $m$ has not been signed in the past by the legitimate signer. There are three types of forgery: existential, selective, and universal. ==Types== Besides the following attacks, there is also a ''total break'': when adversary can compute the signer's private key and therefore forge any possible signature on any message 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「Digital signature forgery」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.