NDLI: Distributed programming with distributed authorization

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Distributed programming with distributed authorization

Content Provider	ACM Digital Library
Author	Datta, Anupam Harper, Robert Avijit, Kumar
Abstract	We propose a programming language, called $PCML_{5},$ for building distributed applications with distributed access control. Target applications include web-based systems in which programs must compute with stipulated resources at different sites. In such a setting, access control policies are decentralized (each site may impose restrictions on access to its resources without the knowledge of or cooperation with other sites) and spatially distributed each site may store its policies locally). To enforce such policies $PCML_{5}$ employs a distributed proof-carrying authorization framework in which sensitive resources are governed by reference monitors that authenticate principals and demand logical proofs of compliance with site-specific access control policies. The language provides primitive operations for authentication, and acquisition of proofs from local policies. The type system of $PCML_{5}$ enforces locality restrictions on resources, ensuring that they can only be accessed from the site at which they reside, and enforces the authentication and authorization obligations required to comply with local access control policies. This ensures that a well-typed $PCML_{5}$ program cannot incur a runtime access control violation at a reference monitor for a controlled resource.
Starting Page	27
Ending Page	38
Page Count	12
File Format	PDF
ISBN	9781605588919
DOI	10.1145/1708016.1708021
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2010-01-23
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Distributed programming Logical frameworks Phase distinction Proof-carrying authorization Authorization logic
Content Type	Text
Resource Type	Article

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