Key-Message Security over State-Dependent Wiretap Channels

Abstract : The state-dependent (SD) wiretap channel (WTC) with non-causal channel state information (CSI) available at the encoder is considered. An inner bound on the trade-off region between admissible secret key (SK) and secret message (SM) rates is provided. The result is derived under the stringent semantic-security metric. Our inner bound recovers the best-known achievability results for either SK generation, SM transmission, or simultaneous execution of both. Since some of these past benchmarks were derived under weaker security metrics, our results imply that an upgrade to semantic-security is possible without inflicting any rate loss. It is shown that for certain instances of the considered SD-WTC, the derived region is strictly larger than the previously best-known SK-SM trade-off region reported by Prabhakaran et al., and that a recently reported SK rate for this setup cannot be achieved.
Type de document :
Communication dans un congrès
2018 IEEE International Symposium on Information Theory (ISIT), Jun 2018, Vail, U.S. Outlying Islands. 2018, 〈10.1109/isit.2018.8437854 〉
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https://hal-centralesupelec.archives-ouvertes.fr/hal-01756025
Contributeur : Pablo Piantanida <>
Soumis le : samedi 31 mars 2018 - 11:17:39
Dernière modification le : mardi 28 août 2018 - 16:59:35

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Bunin Alexander, Ziv Goldfeld, Haim H. Permuter, Shlomo Shamai Shitz, Pablo Piantanida. Key-Message Security over State-Dependent Wiretap Channels. 2018 IEEE International Symposium on Information Theory (ISIT), Jun 2018, Vail, U.S. Outlying Islands. 2018, 〈10.1109/isit.2018.8437854 〉. 〈hal-01756025〉

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