Paper Abstract and Keywords |
Presentation |
2016-03-10 15:55
Fundamental Properties on a Secret-key Cryptosystem with Guessing Secrecy for Plaintexts and Keys Shota Kamiya, Hiroki Koga (Tsukuba Unv.) IT2015-123 ISEC2015-82 WBS2015-106 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In this paper we consider a secret-key cryptosystem with a wiretapper who tries to guess the plaintext corresponding to a transmitted cryptogram. First, we point out the possibility such that a wiretapper can easily guess a plaintext by guessing a key even if a secret-key cryptosystem satisfies the existing guessing secrecy criterion for the plaintext. In this paper we introduce a new guessing secrecy criterion for the key and clarify fundamental properties satisfying the new criterion. In addition, we extend the guessing secrecy criterion for the plaintext to a stronger criterion, i.e., the guessing secrecy criterion for any partial information of the plaintext. It is shown that we can construct a secret-key cryptosystem satisfying the stronger criterion if the key is uniformly distributed. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Information-theoristic secrecy / Shannon’s cipher system / guessing secrecy / min-entropy / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 115, no. 500, IT2015-123, pp. 137-142, March 2016. |
Paper # |
IT2015-123 |
Date of Issue |
2016-03-03 (IT, ISEC, WBS) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
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IT2015-123 ISEC2015-82 WBS2015-106 |
Conference Information |
Committee |
IT ISEC WBS |
Conference Date |
2016-03-10 - 2016-03-11 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
The University of Electro-Communications |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
joint meeting of IT, ISEC, and WBS |
Paper Information |
Registration To |
IT |
Conference Code |
2016-03-IT-ISEC-WBS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Fundamental Properties on a Secret-key Cryptosystem with Guessing Secrecy for Plaintexts and Keys |
Sub Title (in English) |
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Information-theoristic secrecy |
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Shannon’s cipher system |
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guessing secrecy |
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min-entropy |
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1st Author's Name |
Shota Kamiya |
1st Author's Affiliation |
University of Tsukuba (Tsukuba Unv.) |
2nd Author's Name |
Hiroki Koga |
2nd Author's Affiliation |
University of Tsukuba (Tsukuba Unv.) |
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Speaker |
Author-1 |
Date Time |
2016-03-10 15:55:00 |
Presentation Time |
25 minutes |
Registration for |
IT |
Paper # |
IT2015-123, ISEC2015-82, WBS2015-106 |
Volume (vol) |
vol.115 |
Number (no) |
no.500(IT), no.501(ISEC), no.502(WBS) |
Page |
pp.137-142 |
#Pages |
6 |
Date of Issue |
2016-03-03 (IT, ISEC, WBS) |
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