NDLI: Towards a credential-based implementation of compound access control policies

Content Provider	ACM Digital Library
Author	Wortmann, Sandra Biskup, Joachim
Abstract	We describe a layered approach to access control for distributed and interoperable computing systems. Firstly, compound access control policies are conceptually specified, using the policy algebra proposed by Bonatti, Capitani di Vimercati and Samarati. Secondly, SPKI/SDSI is exploited to implement and to enforce a policy specification by means of credentials. Therefore, SPKI/SDSI is slightly extended, in particular in order to allow algebra expressions over local names as subjects in authorisation certificates and to deal with the subtraction operator of the algebra. Besides presenting the overall approach, the paper elaborates some details for a still powerful fraction of the policy algebra, thereby examining the correctness of the credential-based implementation.
Starting Page	31
Ending Page	40
Page Count	10
File Format	PDF
ISBN	1581138725
DOI	10.1145/990036.990042
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2004-06-02
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Access control Certificate chain discovery Credential Spki/sdsi Public key infrastructure Policy algebra
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
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
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Towards a credential-based implementation of compound access control policies