ch04 - Computer Security Principles and Practice Chapter 4...

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Computer Security: Principles and Practice First Edition by William Stallings and Lawrie Brown Lecture slides by Lawrie Brown Chapter 4 Chapter 4 Access Control Access Control
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2 Access Control “The prevention of unauthorized use of a resource, including the prevention of use of a resource in an unauthorized manner“ central element of computer security assume have users and groups authenticate to system assigned access rights to certain resources on system
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3 Access Control Principles
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4 Access Control Policies
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5 Access Control Requirements reliable input fine and coarse specifications least privilege separation of duty open and closed policies policy combinations, conflict resolution administrative policies
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6 Access Control Elements subject - entity that can access objects a process representing user/application often have 3 classes: owner, group, world object - access controlled resource e.g. files, directories, records, programs etc
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This note was uploaded on 02/05/2011 for the course CS 2105 taught by Professor Ana during the Fall '09 term at National University of Singapore.

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ch04 - Computer Security Principles and Practice Chapter 4...

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