NDLI: Propagation of authorizations in distributed database systems

Please wait, while we are loading the content...

Support for the file system security requirements of computational E-mail systems

Secure wireless LANs

The design and implementation of tripwire: a file system integrity checker

Exchange of patient records-prototype implementation of a security attributes service in X.500

A process-oriented methodology for assessing and improving software trustworthiness

Towards acceptable key escrow systems

Protocol failure in the escrowed encryption standard

Secure agreement protocols: reliable and atomic group multicast in rampart

On key distribution via true broadcasting

Conditionally secure secret sharing schemes with disenrollment capability

Meta-ElGamal signature schemes

Anonymous credit cards

An efficient multiversion algorithm for secure servicing of transaction reads

A temporal authorization model

Propagation of authorizations in distributed database systems

The design of substitution-permutation networks resistant to differential and linear cryptanalysis

Information leakage of boolean functions and its relationship to other cryptographic criteria

Authentication codes that are r-fold secure against spoofing

Endorsements, licensing, and insurance for distributed system services

New protocols for third-party-based authentication and secure broadcast

How to simultaneously exchange secrets by general assumptions

A key distribution method for object-based protection

How to break Gifford's cipher (extended abstract)

Parallel collision search with application to hash functions and discrete logarithms

Application access control at network level

Network security probe

Security modelling for organisations

“Mainstreaming” automated information systems security engineering (a case study in security run amok)

The compatibility of policies

An entropy conservation law for testing the completeness of covert channel analysis

Prerequisite confidentiality

Propagation of authorizations in distributed database systems

Content Provider	ACM Digital Library
Author	Ammann, Paul Samarati, Pierangela Jajodia, Sushil
Abstract	We consider the propagation of authorizations in distributed database systems. If no constraints are imposed on the propagation of authorization changes, then the authorization states at different sites may evolve inconsistently. A standard solution is to suppress the distributed aspect and make all changes appear as if they had occurred in some serial order at a single site, perhaps via an atomic commit protocol. However, rigid insistence on consistency may result in authorization changes being needlessly delayed, a problem exacerbated in the context of site or communication failures. We propose an optimistic authorization propagation algorithm. We specify an authorization table and a set of operations for altering the authorization table. Each site maintains a log of authorization operations. We exploit the semantics of authorization operations to avoid relying on an undo-redo mechanism for processing out of order operations. Instead we give efficient, direct algorithms to scan the log and update the authorization table. Any inconsistencies in replicas of the authorization table are transient and are eliminated by further communication between sites. We discuss pruning the authorization log.
Starting Page	136
Ending Page	147
Page Count	12
File Format	PDF
ISBN	0897917324
DOI	10.1145/191177.191204
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	1994-11-02
Publisher Place	New York
Access Restriction	Subscribed
Content Type	Text
Resource Type	Article

Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302

See location in the Map
03222 282435
Mail: support@ndl.gov.in

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