An access control model based on time and events
department or school: Science, Faculty of
department or school: Computer Science, Department of
data provider: DSpace
degree campus: UBCV
creator: Jaggi, Felix P.
issued: 2010-10-05T20:02:40Z
issued: 1990
related degree: Master of Science - MSc
degree grantor: University of British Columbia
description: A new access control model incorporating the notion of time and events is introduced. It allows the specification of fine-grained and flexible security policies which are sensitive to the operating environment. The system constraints, expressed in terms of access windows and obligations, are stored in extended access control lists. The addition of a capability mechanism gives another dimension of protection and added flexibility, so that the flexibility and expressive power of the system constraints is fully supported by the underlying mechanism. The approach is compared to several existing models and its' expressive power is demonstrated by showing the new model can be used to specify different existing security models as well as some special problems. The model is then adapted to work in a distributed environment.
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/28945
note: A N ACCESS CONTROL MODEL BASED ON TIME AND EVENTS By FELIX P. JAGGI Dipl. Ing. E T H , Swiss Federal Institute of Technology Zurich, 1988 A THESIS SUBMITTED IN PARTIAL FULFILLMENT OF T H E REQUIREMENTS FOR THE DEGREE OF MASTER OF SCIENCE in THE F A C U L T Y OF GRADUATE STUDIES (Department of Computer Science) We accept this thesis as conforming to the required standard T H E UNIVERSITY OF BRITISH COLUMBIA July 1990 © Felix P. Jaggi, 1990 In presenting this thesis in partial fulfilment of the requirements for an advanced degree at the University of British Columbia, I agree that the Library shall make it freely available for reference and study. I further agree that permission for extensive copying of this thesis for scholarly purposes may be granted by the head of my department or by his or her representatives. It is understood that copying or publication of this thesis for financial gain shall not be allowed without my written permission. Department of CJOmo v\ej~ Sg.tar>c&-The University of British Columbia Vancouver, Canada Date IttaP DE-6 (2/88) Abstract Abstract A new access control model incorporating the notion of time and events is introduced. It allows the specification of fine-grained and flexible security policies which are sensitive to the operating environment. The system constraints, expressed in terms of access windows and obligations, are stored in extended access control lists. The addition of a capability mechanism gives another dimension of protection and added flexibility, so that the flexibility and expressive power of the system constraints is fully supported by the underlying mechanism. The approach is compared to several existing models and its' expressive power is demonstrated by showing the new model can be used to specify different existing security models as well as some special problems. The model is then adapted to work in a distributed environment. ii Table of Contents Table of Contents Abstract Table of Contents i " List of Tables vi…
has type: Thesis/Dissertation
is shown at: 10.14288/1.0051946
language: eng
degree discipline: Computer Science
provider: Vancouver : University of British Columbia Library
publisher: University of British Columbia
rights: For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
scholar level: Graduate
type: Text
identifier URI: http://hdl.handle.net/2429/28945