Document Type



Master of Science (MS)


Computer Science

First Advisor's Name

Raimund K. Ege

First Advisor's Committee Title

Committee Chair

Second Advisor's Name

Chung-min Chen

Third Advisor's Name

Nagarajan Prabhakaran

Date of Defense



Object-Orientation defines components (objects) that encapsulate data and functionality. Modern 00 programming languages have features that specify the degree of encapsulation in much detail. This thesis extends the access control specification capabilities to objects and puts more emphasis on the objects of Internet commerce. A simple and flexible framework of access control is introduced based on the concept of "token". A prototype implemented in Java demonstrates the feasibility of the ideas and related issues.




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