By Messaoud Benantar
No longer a lot to claim in this e-book other than that i discovered it incomplete and missing in sensible methods, extra studious than program orientated. i've got learn higher books at the topic just like the IAM luck counsel: quantity 1 which bargains much more strategical details because it is extra of a consultant than a tutorial research.
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Extra resources for Access Control Systems: Security, Identity Management and Trust Models
The access-matrix model is the most known of all security models. It is generic enough that it can represent almost any policy whether discretionary or mandatory. Its modeling of DAC, however, is more useful. 26 1. Foundations of Security and Access Control in Computing An access-control mechanism refers to a particular method, tool, or procedure for implementing an access control policy. Mechanisms are not necessarily always automated. They can be provided through offline processes—for example, through the manual intervention of an administrator.
In either case, one entity performs functions on behalf of another entity. Recall that acting on behalf of an entity implies the use of that entity's security context and hence its identity and entitlements. Masquerading under someone's identity, however, is a security violation. The key distinction between delegation and masquerading is that delegation implies the presence of two entities both of which are aware of one another and one is consenting that the other assumes its identity. Masquerading, on the other hand, happens when an entity assumes the identity of another entity without explicit or implicit consent.
An assurance family contains assurance components, which in turn contain assurance elements. Classes and families are used to provide a taxonomy for classifying assurance requirements, while components are used to specify assurance requirement in a protection profile or for a security target. The scale for measuring assurance in the Common Criteria is called the evaluation-assurance level (EAL). EALs are hierarchically ordered such that higher EALs represent increasing assurance. The increase of assurance from EAL to EAL is accomplished by using a hierarchically higher-assurance component within the same assurance family.