csce522-lect15 - Access Control MAC Reading assignments...

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Access Control MAC
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CSCE 522 - Farkas 2 Lecture 17 Reading assignments Required for access control classes: Ravi Sandhu and P. Samarati, Access Control: Principles and Practice, IEEE Communications, Volume 32, Number 9, September 1994 http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.30.50 Ravi Sandhu, Lattice-Based Access Control Models, IEEE Computer, Volume 26, Number 11 (Cover Article), November 1993 http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.54.83
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CSCE 522 - Farkas 3 Lecture 17 Mandatory Access Control Objects: security classification e.g., grades=(confidential, {student-info}) Subjects: security clearances e.g., Joe=(confidential, {student-info}) Access rules: defined by comparing the security classification of the requested objects with the security clearance of the subject e.g., subject can read object only if label(subject) dominates label(object)
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CSCE 522 - Farkas 4 Lecture 17 Mandatory Access Control If access control rules are satisfied, access is permitted e.g., Joe wants to read grades. label(Joe)=(confidential,{student-info}) label(grades)=(confidential,{student-info}) Joe is permitted to read grades Granularity of access rights!
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CSCE 522 - Farkas 5 Lecture 17 Mandatory Access Control Security Classes (labels): (A,C) A – total order authority level C – set of categories e.g.,
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