翻訳と辞書 Words near each other ・ Horton Light Railway ・ Horton Mill Covered Bridge ・ Horton overland flow ・ Horton Park ・ Horton Park (Saint Paul, Minnesota) ・ Horton Park Golf Club ・ Horton Park railway station ・ Horton Park, Blenheim ・ Horton Park, Bradford ・ Horton Peak ・ Horton Plains National Park ・ Horton Plaza ・ Horton Plaza and Broadway Fountain ・ Horton Point ・ Horton Point Light ・ Horton Principle ・ Horton Priory ・ Horton River ・ Horton River (Australia) ・ Horton River (Canada) ・ Horton Rounds ・ Horton Smith ・ Horton Sphere ・ Horton the Elephant ・ Horton Township ・ Horton Township, Michigan ・ Horton Township, Pennsylvania ・ Horton Township, Stevens County, Minnesota ・ Horton v. California ・ Horton v. Meskill 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 Horton Principle ： ウィキペディア英語版 Horton Principle The Horton Principle is a design rule for cryptographic systems and can be expressed as "Authenticate what is being meant, not what is being said".〔Ferguson, N., Schneier, B. (2003). "Practical Cryptography" p. 109, Indianapolis, Indiana: Wiley Publishing, Inc.〕 The principle is named after the title character in the Dr. Seuss children's book ''Horton Hatches the Egg''〔〔Wagner, David; Schneier, Bruce (April 15, 1997). ("Analysis of the SSL 3.0 Protocol" ). schneier.com.〕 The Horton Principle becomes important when using Message Authentication Codes (or MACs) in a Cryptographic system. Suppose Alice wants to send a message to Bob, and she uses a MAC to authenticate a message ''m'' that was made by concatenating three data fields, where ''m'' := ''a'' || ''b'' || ''c''. Bob needs to know what rules Alice used to create the message in order to split ''m'' back into its components, but if he uses the wrong rules then he'll get the wrong values from an authenticated message. The problem is that the MAC is only authenticating a string of bytes, while Alice and Bob need to authenticate the way the message was constructed as well. If not, then it may be possible for an attacker to substitute a message with a valid MAC but a different meaning. Systems can manage this problem by adding metadata such as a protocol number or by formatting messages with an explicit structure, such as XML. ==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「Horton Principle」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.