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conference paper

A compression perspective on secrecy measures

Shkel, Yanina Y.  
•
Poor, H. Vincent
January 1, 2020
2020 Ieee International Symposium On Information Theory (Isit)
IEEE International Symposium on Information Theory (ISIT)

The relationship between secrecy, compression rate, and shared secret key rate is surveyed under perfect secrecy, equivocation, maximal leakage, local differential privacy, and secrecy by design. It is emphasized that the utility cost of jointly compressing and securing data is very sensitive to (a) the adopted secrecy metric and (b) the specifics of the compression setting. That is, although it is well-known that the fundamental limits of traditional lossless variable-length compression and almost-lossless fixed-length compression are intimately related, this relationship collapses for many secrecy measures. The asymptotic fundamental limit of almost-lossless fixed length compression remains entropy for all secrecy measures studied. However, the fundamental limits of lossless variable-length compression are no longer entropy under perfect secrecy, secrecy by design, and sometimes under local differential privacy. Moreover, there are significant differences in secret key/secrecy tradeoffs between lossless and almost-lossless compression under perfect secrecy, secrecy by design, maximal leakage, and local differential privacy.

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Type
conference paper
DOI
10.1109/ISIT44484.2020.9173959
Web of Science ID

WOS:000714963401012

Author(s)
Shkel, Yanina Y.  
Poor, H. Vincent
Date Issued

2020-01-01

Publisher

IEEE

Publisher place

New York

Published in
2020 Ieee International Symposium On Information Theory (Isit)
ISBN of the book

978-1-7281-6432-8

Series title/Series vol.

IEEE International Symposium on Information Theory

Start page

995

End page

1000

Subjects

system

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LINX  
Event nameEvent placeEvent date
IEEE International Symposium on Information Theory (ISIT)

ELECTR NETWORK

Jun 21-26, 2020

Available on Infoscience
December 18, 2021
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/183863
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