Paper Abstract and Keywords |
Presentation |
2014-09-05 14:10
Fail-Stop Signature Scheme with TTP and Its UC-Security Masahiro Nomura, Katsuhiro Nakamura (Chiba Univ.) ISEC2014-49 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
As security requirements of fail-stop signature (FSS) schemes, non-repudiability and unforgeability are required. In this paper, it is considered that FSS schemes are used in the environment where adversaries have huge (exponentially increasing) computational power. However, FSS schemes cannot satisfy non-repudiability in that environment, so an FSS scheme with a Trusted Third Party (TTP) is proposed as a system where it is not supposed that the signer trys to repudiate his signature. In order to use this scheme widely, it is discussed whether security is preserved even when an FSS scheme with a TTP is used as a sub-protocol in a larger system. That is, UC-security (Universally Composable Security) of an FSS scheme with a TTP is considered. In this discussion, an oracle is used to represent an adversary with huge (exponentially increasing) computational power. Then, it is shown that an FSS scheme with a TTP satisfies the UC-security with some conditions. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Digital Signature / Fail-Stop Signature / TTP / Non-Repudiability / Unforgeability / UC-Security / / |
Reference Info. |
IEICE Tech. Rep., vol. 114, no. 203, ISEC2014-49, pp. 13-20, Sept. 2014. |
Paper # |
ISEC2014-49 |
Date of Issue |
2014-08-29 (ISEC) |
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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ISEC2014-49 |
Conference Information |
Committee |
ISEC |
Conference Date |
2014-09-05 - 2014-09-05 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Kikai-Shinko-Kaikan Bldg. |
Topics (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
ISEC |
Conference Code |
2014-09-ISEC |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Fail-Stop Signature Scheme with TTP and Its UC-Security |
Sub Title (in English) |
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Keyword(1) |
Digital Signature |
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Fail-Stop Signature |
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TTP |
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Non-Repudiability |
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Unforgeability |
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UC-Security |
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1st Author's Name |
Masahiro Nomura |
1st Author's Affiliation |
Chiba University (Chiba Univ.) |
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Katsuhiro Nakamura |
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Chiba University (Chiba Univ.) |
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Speaker |
Author-1 |
Date Time |
2014-09-05 14:10:00 |
Presentation Time |
25 minutes |
Registration for |
ISEC |
Paper # |
ISEC2014-49 |
Volume (vol) |
vol.114 |
Number (no) |
no.203 |
Page |
pp.13-20 |
#Pages |
8 |
Date of Issue |
2014-08-29 (ISEC) |
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