Secure Source Coding with a Public Helper
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.
Cite
@article{arxiv.1307.1397,
title = {Secure Source Coding with a Public Helper},
author = {Kittipong Kittichokechai and Yeow-Khiang Chia and Tobias J. Oechtering and Mikael Skoglund and Tsachy Weissman},
journal= {arXiv preprint arXiv:1307.1397},
year = {2013}
}
Comments
45 pages, 12 figures, a short version to be presented at ISIT 2013