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Policy specification languages such as XACML often provide mechanisms to resolve dynamic conflicts that occur when trying to determine if a request should be permitted or denied access by a policy. Examples include "deny-overrides" or "first-applicable." Such algorithms are primitive and potentially a risk for corporate computer security. While they can be useful for resolving...
The Quantity Based Aggregation (QBA) policy is very simple, yet understudied by the scientific community. The QBA policy can be stated as follows: given a set of sensitive objects, no more than a limited number of these objects should be disclosed. In [1], [2], the authors defined a QBA control model for relational databases supporting projection-selection queries on single relations. In [3]–[6],...
The authors discuss the need for protection in commercial organizations, and the way in which control principles have met this need, despite having evolved before computer systems came into use. The basis for these principles is the concept of authority and how it is designated within an organization. A simulation model for access control, written in Prolog, is presented.<<ETX>>
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.