Optimal equivocation in secrecy systems a special case of distortion-based characterization

Paul Cuff

doi:10.1109/ITA.2013.6502999

Optimal equivocation in secrecy systems a special case of distortion-based characterization

Paul Cuff

Electrical and Computer Engineering

Research output: Contribution to conference › Paper › peer-review

4 Scopus citations

Abstract

Recent work characterizing the optimal performance of secrecy systems has made use of a distortionlike metric for partial secrecy as a replacement for the more traditional metric of equivocation. In this work we use the log-loss function to show that the optimal performance limits characterized by equivocation are, in fact, special cases of distortion-based counterparts. This observation illuminates why equivocation doesn't tell the whole story of secrecy. It also justifies the causal-disclosure framework for secrecy (past source symbols and actions revealed to the eavesdropper).

Original language	English (US)
Pages	540-542
Number of pages	3
DOIs	https://doi.org/10.1109/ITA.2013.6502999
State	Published - 2013
Event	2013 Information Theory and Applications Workshop, ITA 2013 - San Diego, CA, United States Duration: Feb 10 2013 → Feb 15 2013

Other

Other	2013 Information Theory and Applications Workshop, ITA 2013
Country/Territory	United States
City	San Diego, CA
Period	2/10/13 → 2/15/13

All Science Journal Classification (ASJC) codes

Computer Science Applications
Information Systems

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10.1109/ITA.2013.6502999

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abstract = "Recent work characterizing the optimal performance of secrecy systems has made use of a distortionlike metric for partial secrecy as a replacement for the more traditional metric of equivocation. In this work we use the log-loss function to show that the optimal performance limits characterized by equivocation are, in fact, special cases of distortion-based counterparts. This observation illuminates why equivocation doesn't tell the whole story of secrecy. It also justifies the causal-disclosure framework for secrecy (past source symbols and actions revealed to the eavesdropper).",

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AB - Recent work characterizing the optimal performance of secrecy systems has made use of a distortionlike metric for partial secrecy as a replacement for the more traditional metric of equivocation. In this work we use the log-loss function to show that the optimal performance limits characterized by equivocation are, in fact, special cases of distortion-based counterparts. This observation illuminates why equivocation doesn't tell the whole story of secrecy. It also justifies the causal-disclosure framework for secrecy (past source symbols and actions revealed to the eavesdropper).

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T2 - 2013 Information Theory and Applications Workshop, ITA 2013

Y2 - 10 February 2013 through 15 February 2013

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Optimal equivocation in secrecy systems a special case of distortion-based characterization

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