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Paper Abstract and Keywords
Presentation 2018-03-09 10:50
On Security Evaluation for Coset Coding in Wiretap Channel Coding
Yuki Mori, Tomohiro Ogawa (UEC) IT2017-143 ISEC2017-131 WBS2017-124
Abstract (in Japanese) (See Japanese page) 
(in English) According to wiretap channel coding by Wyner, it is possible to encode messages (or secret keys) so that the legitimate receiver can obtain the messages without an error and the eavesdropper cannot obtain any information of the messages, when the noise difference of the communication channels is utilized. It is known theoretically that good codes can be generated by random coding with high probability when the code length n is large, though it is difficult to confirm whether thus generated codes are actually secure or not.
In this paper, we propose a numerical method to check whether linear equivocation codes are actually secure or not. Our method is based on the multivariate discrete Fourier transform and can be used even when the code length n is large. With the
code length n = 400 and the message length m = 30, we have verified the security of equivocation codes in a few minutes, and showed numerically that it is possible to generate equivocation codes which introduce high disturbance approaching theoretical limits against the eavesdropper.
Keyword (in Japanese) (See Japanese page) 
(in English) information theoretic security / wiretap channel coding / coset coding / equivocation code / characteristic function / / /  
Reference Info. IEICE Tech. Rep., vol. 117, no. 488, ISEC2017-131, pp. 237-243, March 2018.
Paper # ISEC2017-131 
Date of Issue 2018-03-01 (IT, ISEC, WBS) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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Download PDF IT2017-143 ISEC2017-131 WBS2017-124

Conference Information
Committee WBS IT ISEC  
Conference Date 2018-03-08 - 2018-03-09 
Place (in Japanese) (See Japanese page) 
Place (in English) Katsusika Campas, Tokyo University of Science 
Topics (in Japanese) (See Japanese page) 
Topics (in English) joint meeting of IT, ISEC, and WBS 
Paper Information
Registration To ISEC 
Conference Code 2018-03-WBS-IT-ISEC 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) On Security Evaluation for Coset Coding in Wiretap Channel Coding 
Sub Title (in English)  
Keyword(1) information theoretic security  
Keyword(2) wiretap channel coding  
Keyword(3) coset coding  
Keyword(4) equivocation code  
Keyword(5) characteristic function  
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1st Author's Name Yuki Mori  
1st Author's Affiliation University of Electro-Communications (UEC)
2nd Author's Name Tomohiro Ogawa  
2nd Author's Affiliation University of Electro-Communications (UEC)
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Speaker Author-1 
Date Time 2018-03-09 10:50:00 
Presentation Time 25 minutes 
Registration for ISEC 
Paper # IT2017-143, ISEC2017-131, WBS2017-124 
Volume (vol) vol.117 
Number (no) no.487(IT), no.488(ISEC), no.489(WBS) 
Page pp.237-243 
#Pages
Date of Issue 2018-03-01 (IT, ISEC, WBS) 


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