Secure Source Coding With a Public Helper

We consider secure multi-terminal source coding problems in the presence of a public helper. Two main scenarios are studied: 1) source coding with a helper where the coded side information from the helper is eavesdropped by an external eavesdropper and 2) triangular source coding with a helper where...

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Bibliographic Details
Published in:IEEE transactions on information theory Vol. 62; no. 7; pp. 3930 - 3949
Main Authors: Kittichokechai, Kittipong, Chia, Yeow-Khiang, Oechtering, Tobias J., Skoglund, Mikael, Weissman, Tsachy
Format: Journal Article
Language:English
Published: New York IEEE 01.07.2016
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
Codes
Coding
Data integrity
Data transmission
Decoding
Distortion
Distortion measurement
eavesdropper
Electronic eavesdropping
helper
Information theory
Leakage
Leaking of information
Loss measurement
lossy source coding
Markov processes
privacy
rate-distortion-leakage tradeoff
secrecy
side information
Source coding
Terminals
Wyner-Ziv coding
eavesdropper
Wyner-Ziv coding
helper
secrecy
lossy source coding
side information
privacy
rate-distortion-leakage tradeoff
ISSN:0018-9448, 1557-9654, 1557-9654
Online Access:Get full text
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Summary:We consider secure multi-terminal source coding problems in the presence of a public helper. Two main scenarios are studied: 1) source coding with a helper where the coded side information from the helper is eavesdropped by an external eavesdropper and 2) triangular source coding with a helper where the helper is considered as a public terminal. We are interested in how the helper can support the source transmission subject to a constraint on the amount of information leaked due to its public nature. We characterize the tradeoff among transmission rate, incurred distortion, and information leakage rate at the helper/eavesdropper in the form of the rate-distortion-leakage region for various classes of problems.
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ISSN:0018-9448
1557-9654
1557-9654
DOI:10.1109/TIT.2016.2570011