Sirigampola-Access Control in Collaborative Systems

Sirigampola-Access Control in Collaborative Systems -...

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Click to edit Master subtitle style 8/1/11 Access Control in Collaborative Systems William Tolone, Gail-Joon Ahn, Tanusree Pai & Seng-Phil Hong
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8/1/11 Outline Collaborative Environments Access Control Requirements Access Control Models Assessment Conclusion
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8/1/11 Collaborative Environments Facebook Code Repositories Webcourses
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8/1/11 Access Control Requirements Applied at a distributed level Should be able to adapt Scalability Fine-grained control Exclusion of unauthorized users Easy specification of access rights Ability to dynamically change access policies
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8/1/11 Outline Collaborative Environments Access Control Requirements Access Control Models Assessment Conclusion
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8/1/11 Access Matrix Model Based on subjects and objects Reference monitor for checking access
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8/1/11 Access Matrix Model (cont.) Implemented in Access Control Lists
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8/1/11 Access Matrix Model (cont.) Shortcomings Not complex enough No ability to dynamically change policy Can’t address objects not owned by users
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This note was uploaded on 07/30/2011 for the course COP 4810 taught by Professor Staff during the Spring '11 term at University of Central Florida.

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Sirigampola-Access Control in Collaborative Systems -...

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