Secure and Private Distributed Source Coding With Private Keys and Decoder Side Information

The distributed source coding problem is extended by positing that noisy measurements of a remote source are the correlated random variables that should be reconstructed at another terminal. We consider a secure and private distributed lossy source coding problem with two encoders and one decoder su...

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Bibliographic Details
Published in:IEEE transactions on information forensics and security Vol. 18; pp. 3803 - 3816
Main Authors: Gunlu, Onur, Schaefer, Rafael F., Boche, Holger, Poor, H. Vincent
Format: Journal Article
Language:English
Published: New York IEEE 2023
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:
6G mobile communication
Coders
Codes
Communication
Decoding
Leakage
Links
Noise measurement
passive attack
Privacy
Random variables
rate-limited public communication
Remote observing
remote source
Satellite broadcasting
Secure and private distributed source coding
Source coding
weak eavesdropper
weak eaves-dropper
rate-limited public communication
Secure and private distributed source coding
remote source
passive attack
ISSN:1556-6013, 1556-6021, 1556-6021
Online Access:Get full text
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Summary:The distributed source coding problem is extended by positing that noisy measurements of a remote source are the correlated random variables that should be reconstructed at another terminal. We consider a secure and private distributed lossy source coding problem with two encoders and one decoder such that (i) all terminals noncausally observe a noisy measurement of the remote source; (ii) a private key is available to each legitimate encoder and all private keys are available to the decoder; (iii) rate-limited noiseless communication links are available between each encoder and the decoder; (iv) the amount of information leakage to an eavesdropper about the correlated random variables is defined as (v) secrecy leakage, and privacy leakage is measured with respect to the remote source; and (vi) two passive attack scenarios are considered, where a strong eavesdropper can access both communication links and a weak eavesdropper can choose only one of the links to access. Inner and outer bounds on the rate regions defined under secrecy, privacy, communication, and distortion constraints are derived for both passive attack scenarios. When one or both sources should be reconstructed reliably, the rate region bounds are simplified.
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ISSN:1556-6013
1556-6021
1556-6021
DOI:10.1109/TIFS.2023.3286285