The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
O vazamento de informações no modelo de canal de escuta telefônica de Wyner é geralmente definido como a informação mútua entre a mensagem secreta e o sinal recebido do espião. Definimos uma nova quantidade chamada “vazamento de informação condicional dados os sinais recebidos do bisbilhoteiro”, que expressa a quantidade de informação que um bisbilhoteiro obtém do sinal recebido. Um benefício da introdução desta quantidade é que podemos desenvolver um algoritmo rápido para calcular o vazamento de informação condicional, que possui complexidade linear no comprimento do código. n, enquanto a complexidade para calcular o vazamento usual de informações é exponencial em n. A validade de tal vazamento condicional de informações como critério de segurança é confirmada pelo estudo dos casos de canais binários simétricos e canais binários de apagamento.
Yutaka JITSUMATSU
Kyushu University
Ukyo MICHIWAKI
NTT DOCOMO, INC.
Yasutada OOHAMA
The University of Electro-Communications
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Yutaka JITSUMATSU, Ukyo MICHIWAKI, Yasutada OOHAMA, "Conditional Information Leakage Given Eavesdropper's Received Signals in Wiretap Channels" in IEICE TRANSACTIONS on Fundamentals,
vol. E104-A, no. 1, pp. 295-304, January 2021, doi: 10.1587/transfun.2020EAP1017.
Abstract: Information leakage in Wyner's wiretap channel model is usually defined as the mutual information between the secret message and the eavesdropper's received signal. We define a new quantity called “conditional information leakage given the eavesdropper's received signals,” which expresses the amount of information that an eavesdropper gains from his/her received signal. A benefit of introducing this quantity is that we can develop a fast algorithm for computing the conditional information leakage, which has linear complexity in the code length n, while the complexity for computing the usual information leakage is exponential in n. Validity of such a conditional information leakage as a security criterion is confirmed by studying the cases of binary symmetric channels and binary erasure channels.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.2020EAP1017/_p
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@ARTICLE{e104-a_1_295,
author={Yutaka JITSUMATSU, Ukyo MICHIWAKI, Yasutada OOHAMA, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={Conditional Information Leakage Given Eavesdropper's Received Signals in Wiretap Channels},
year={2021},
volume={E104-A},
number={1},
pages={295-304},
abstract={Information leakage in Wyner's wiretap channel model is usually defined as the mutual information between the secret message and the eavesdropper's received signal. We define a new quantity called “conditional information leakage given the eavesdropper's received signals,” which expresses the amount of information that an eavesdropper gains from his/her received signal. A benefit of introducing this quantity is that we can develop a fast algorithm for computing the conditional information leakage, which has linear complexity in the code length n, while the complexity for computing the usual information leakage is exponential in n. Validity of such a conditional information leakage as a security criterion is confirmed by studying the cases of binary symmetric channels and binary erasure channels.},
keywords={},
doi={10.1587/transfun.2020EAP1017},
ISSN={1745-1337},
month={January},}
Copiar
TY - JOUR
TI - Conditional Information Leakage Given Eavesdropper's Received Signals in Wiretap Channels
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 295
EP - 304
AU - Yutaka JITSUMATSU
AU - Ukyo MICHIWAKI
AU - Yasutada OOHAMA
PY - 2021
DO - 10.1587/transfun.2020EAP1017
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E104-A
IS - 1
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - January 2021
AB - Information leakage in Wyner's wiretap channel model is usually defined as the mutual information between the secret message and the eavesdropper's received signal. We define a new quantity called “conditional information leakage given the eavesdropper's received signals,” which expresses the amount of information that an eavesdropper gains from his/her received signal. A benefit of introducing this quantity is that we can develop a fast algorithm for computing the conditional information leakage, which has linear complexity in the code length n, while the complexity for computing the usual information leakage is exponential in n. Validity of such a conditional information leakage as a security criterion is confirmed by studying the cases of binary symmetric channels and binary erasure channels.
ER -