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共享機密之階層式存取控制策略

An Access Control Scheme in Hierarchy for Sharing Secret Data

摘要


本研究旨在為階層式存取控制提出一個新的理論模型架構,即於組織內之高階管理者,祇須擁有一個密碼,並透過簡單的運算,就可知悉其任何一位低階下屬之密碼,而毋須另外擁有每位所屬之密碼。本論文所提供之策略具有下列優點:(1)可減輕管理者在密碼管理上之負荷;(2)具有機密共享之特性;(3)保密效果良好。

並列摘要


The purpose of this research is to propose a new theoretical model for access control in a hierarchy. The main point is that the superiors in an organization only need to possess a secret key. And, through a simple computation, the superiors can know any secret key of his (or her) subordinates, i.e., the superiors need not know every subordinate's secret key in advance. Our scheme has the following advantages: (1) .reduce the burden of managers on secret key management: (2) .preserve the feature of sharing secret data; and (3) .the effect of data security works well.

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