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Quantification of integrity

Published online by Cambridge University Press:  10 November 2014

MICHAEL R. CLARKSON
Affiliation:
Department of Computer Science, Cornell University, Ithaca, NY, 14853, USA Email: clarkson@cs.cornell.edu
FRED B. SCHNEIDER
Affiliation:
Department of Computer Science, Cornell University, Ithaca, NY, 14853, USA Email: fbs@cs.cornell.edu

Abstract

Three integrity measures are introduced: contamination, channel suppression and program suppression. Contamination is a measure of how much untrusted information reaches trusted outputs; it is the dual of leakage, which is a measure of information-flow confidentiality. Channel suppression is a measure of how much information about inputs to a noisy channel is missing from the channel outputs. And program suppression is a measure of how much information about the correct output of a program is lost because of attacker influence and implementation errors. Program and channel suppression do not have interesting confidentiality duals. As a case study, a quantitative relationship between integrity, confidentiality and database privacy is examined.

Information

Type
Special Issue: Quantitative Information Flow
Copyright
Copyright © Cambridge University Press 2014 

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