Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/19033
DC FieldValueLanguage
dc.contributor.advisor賈坤芳zh_TW
dc.contributor.advisorKuen-Fang J. Jeaen_US
dc.contributor.author張錦周zh_TW
dc.contributor.authorChang, Jin-Chouen_US
dc.date1996zh_TW
dc.date.accessioned2014-06-06T07:06:04Z-
dc.date.available2014-06-06T07:06:04Z-
dc.identifier.urihttp://hdl.handle.net/11455/19033-
dc.description.abstract本研究中,我們將Bell LaPadula模型的祕密性限制條件與Biba模型 的完整性限制條件整合,並應用階層式存取控制密碼技術,提出一個新的 強制式存取控制模型。此模型滿足下列需求 1.避免限制一個主體只能讀 取同等級的受體。2.避免因更新或新增資料而過度提昇資料的安全等級 。3.使批次作業成為可能。此外,我們以這個模型為基礎,研究多層級關 連中的多例問題,並提出一個新的架構,以完全除去多層級關連中的多例 現象。由於這個架構是將一個多層級關連分解為多個基礎關連,並利用個 體識別碼做為這些基礎關連間連結的橋樑,所以它除了解決隱藏故事之安 全問題外,並可避免資料更新擴散與將"限制值"改回"非限制值"的需要。zh_TW
dc.description.abstractIn this study, we integrate the secrecy constraints of the Bell LaPadula model with the integrity constraints of the Biba model, andadopt the cryptographic technology of access control in a hierarchy to derive a new mandatory access control model. This model satisfiesthe following requirements: 1. avoid limiting a subject only to be able to read an object with the same access class. 2. avoid overly upgrading the security level of data due to data update or insertion.3. make batch operations possible. Furthermore, under this model, weinvestigate the polyinstantiation problem and propose a new scheme tocompletely eliminate polyinstantiation in a multilevel relation. Thisscheme decomposes a multilevel relation into several base relations and makes use of object identifier as a link between base relations. It not only resolves cover story problem but also avoids the need ofmodifying "restricted" values to "unrestricted" values when all dataat higher access classes have to be updated to null.en_US
dc.language.isoen_USzh_TW
dc.publisher資訊科學學系zh_TW
dc.subjectsecrecyen_US
dc.subject祕密性zh_TW
dc.subjectintegrityen_US
dc.subjectmandatory access controlen_US
dc.subjectdiscretionary access controlen_US
dc.subjectpolyinstantiationen_US
dc.subjectsignaling channelen_US
dc.subject完整性zh_TW
dc.subject強制式存取控制zh_TW
dc.subject隨意式存取控制zh_TW
dc.subject多例zh_TW
dc.subject信號通知通道zh_TW
dc.title一個新的強制式保護模型及其多例消除機構zh_TW
dc.titleA New Mandatory Protection Model and Its Polyinstantiation Elimination Schemeen_US
dc.typeThesis and Dissertationzh_TW
item.languageiso639-1en_US-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
item.openairetypeThesis and Dissertation-
item.fulltextno fulltext-
item.grantfulltextnone-
Appears in Collections:資訊科學與工程學系所
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