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Entropy 2012, 14(3), 571-580; doi:10.3390/e14030571
Article

Benefit-Cost Analysis of Security Systems for Multiple Protected Assets Based on Information Entropy

1
,
1,2,* , 1
 and
1
1 National Engineering Research Center for Multimedia Software, Wuhan University, Wuhan 430072, China 2 School of Computer, Wuhan University, Wuhan 430072, China
* Author to whom correspondence should be addressed.
Received: 18 January 2012 / Revised: 27 February 2012 / Accepted: 29 February 2012 / Published: 14 March 2012
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Abstract

This article proposes a quantitative risk assessment for security systems which have multiple protected assets and a risk-based benefit-cost analysis for decision makers. The proposed methodology consists of five phases: identification of assets, security unit and intrusion path, security unit effectiveness estimation, intrusion path effectiveness estimation, security system risk assessment and benefit-cost estimation. Key innovations in this methodology include its use of effectiveness entropy to measure the degree of uncertainty of a security system to complete a protection task, and the fact it measures risk like information theory measures the amount of information. A notional example is provided to demonstrate an application of the proposed methodology.
Keywords: security system; effectiveness estimation; entropy; multiple assets; benefit-cost security system; effectiveness estimation; entropy; multiple assets; benefit-cost
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).

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Dai, J.; Hu, R.; Chen, J.; Cai, Q. Benefit-Cost Analysis of Security Systems for Multiple Protected Assets Based on Information Entropy. Entropy 2012, 14, 571-580.

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