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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 Purple Penelope ： ウィキペディア英語版 Purple Penelope Purple Penelope was a demonstration secure system created by the Defence Research Agency (DRA) in the UK. Its aim was to show that the security functionality of Windows NT could be extended to support users handling classified information. == Security Model == Purple Penelope 〔Simon Wiseman, (''Purple Penelope: Extending the Security of Windows NT'' )〕 implemented the Domain Based Security model 〔Hayat, Reeve and Boutle, (''Domain Based Security: Improving Practices'' )〕〔K J Hughes, (''Domain Based Security: enabling security at the level of applications and business processes'' )〕 which was developed for the UK Ministry of Defence by DRA to take advantage of using Commercial Off The Shelf (COTS) software to implement secure systems. Within a security domain access controls are designed to stop users from accessing material without a need-to-know and to prevent them making mistakes when handling classified data, while controls over sharing information between security domains are more stringent and defend against attacks and hold the users to account for their actions. The model calls for discretionary security labelling and role based access controls within a domain and user-sanctioned release of information from the domain coupled with application oriented accounting and audit.〔(''Purple Penelope and UK MOD's Emerging Strategy for Information Security'' )〕 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「Purple Penelope」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.