翻訳と辞書 Words near each other ・ Key Club (jazz club) ・ Key Club Recording Company ・ Key clustering ・ Key code ・ Key Code Qualifier ・ Key Colony (condominium) ・ Key Colony Beach, Florida ・ Key control ・ Key date ・ Key deer ・ Key demographic ・ Key derivation function ・ KEY Difference ・ Key disclosure law ・ Key distribution ・ Key distribution center ・ Key distribution in wireless sensor networks ・ Key Elementary School ・ Key encapsulation ・ Key Energy Services ・ Key escrow ・ Key Exchange ・ Key exchange ・ Key Falls ・ Key feedback mode ・ Key Field Air National Guard Base ・ Key figures in the Green Party of England and Wales ・ Key finder ・ Key Food ・ Key for Life 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 Key distribution center ： ウィキペディア英語版 Key distribution center In cryptography, a key distribution center (KDC) is part of a cryptosystem intended to reduce the risks inherent in exchanging keys. KDCs often operate in systems within which some users may have permission to use certain services at some times and not at others. ==Security overview== For instance, an administrator may have established a policy that only certain users may backup to tape. (Perhaps the administrator has concerns that unrestricted use might result in someone smuggling out a tape containing important information; but the precise reason does not matter for the purpose of explaining the functioning of the key-distribution center.) Many operating systems can control access to the tape facility via a "system service". If that system service further restricts the tape drive to operate only on behalf of users who can submit a service-granting ticket when they wish to use it, there remains only the task of distributing such tickets to the appropriately permitted users. If the ticket consists of (or includes) a key, one can then term the mechanism which distributes it a KDC. Usually, in such situations, the KDC itself also operates as a system service. 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「Key distribution center」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.