DocumentCode :
640278
Title :
Secure source coding with a public helper
Author :
Kittichokechai, Kittipong ; Yeow-Khiang Chia ; Oechtering, Tobias J. ; Skoglund, Mikael ; Weissman, Tsachy
Author_Institution :
ACCESS Linnaeus Center, KTH R. Inst. of Technol., Stockholm, Sweden
fYear :
2013
fDate :
7-12 July 2013
Firstpage :
2209
Lastpage :
2213
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.
Keywords :
public key cryptography; source coding; telecommunication security; external eavesdropper; information leakage rate; public helper; public terminal; rate distortion leakage region; secure multiterminal source coding problem; secure source coding; source transmission subject; transmission rate; triangular source coding; Decoding; Distortion measurement; Indexes; Loss measurement; Markov processes; Source coding;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Information Theory Proceedings (ISIT), 2013 IEEE International Symposium on
Conference_Location :
Istanbul
ISSN :
2157-8095
Type :
conf
DOI :
10.1109/ISIT.2013.6620618
Filename :
6620618
Link To Document :
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