NDLI: Modular authorization

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Modular authorization

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Modular authorization

Content Provider	ACM Digital Library
Author	Wedde, Horst F. Lischka, Mario
Abstract	There are three major drawbacks of a centralized security administration in distributed systems: It creates a bottleneck for request handling, it tends to enforce homogeneous security structures in heterogeneous user groups and organizations, and it is a weak point in terms of security attacks, reliability, and fault tolerance. In this paper we introduce a distributed authorization concept which is based on a modular authorization language for supporting cooperatingdistributed authorization teams. These teams are partially ordered into a hierarchy in that they inherit authorization rules from higher order teams but still exercise their autonomy by (dynamically) setting local rules that serve the special local needs in distributed organizations.Conflictsbetween between rules inherited from different higher ranking sources, orviolationsof higher order rules through local rules would be detected, on the logical level or through request evaluation, as contradictions or contradicting results, respectively. Conflict resolution mechanisms are presented, and examples are discussed extensively.
Starting Page	97
Ending Page	105
Page Count	9
File Format	PDF
ISBN	1581133502
DOI	10.1145/373256.373274
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2001-05-01
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Authorization Violations Conflicts Modularity Role-based access control Composability
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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