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arXiv · 1307.1397

Secure Source Coding with a Public Helper

Kittipong Kittichokechai·Yeow-Khiang Chia·Tobias J. Oechtering·Mikael Skoglund·Tsachy Weissman
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Abstract

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; 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 between transmission rate, incurred distortion, and information leakage rate at the helper/eavesdropper in the form of a rate-distortion-leakage region for various classes of problems.

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Kittipong Kittichokechai, Yeow-Khiang Chia, Tobias J. Oechtering, Mikael Skoglund, Tsachy Weissman. 2013-07-04. Secure Source Coding with a Public Helper. https://arxiv.org/abs/1307.1397

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