Paper Abstract and Keywords |
Presentation |
2010-07-02 13:25
Attribute-based encryption with arbitrary number of authorities Go Ohtake (NHK/IISEC), Hiroshi Doi (IISEC) ISEC2010-30 SITE2010-26 ICSS2010-36 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
Ciphertext-Policy Attribute-Based Encryption (CP-ABE) allows to encrypt data under an access policy including attributes. Such ciphertexts can be decrypted by anyone with a set of attributes that satisfy the policy. Recently, Muller et al. proposed Distributed Attribute-Based Encryption (DABE), where an arbitrary number of authorities can be present to maintain attributes and their corresponding secret keys. However, their scheme requires one trusted authority that maintains users and any ciphertext can be decrypted by the authority. In this paper, we propose a ciphertext-policy attribute-based encryption scheme where an arbitrary number of attribute authorities can be present. Our scheme is more secure than the Muller et al.’s scheme, since there exists no authority that can decrypt any ciphertext. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Attribute-Based Encryption / Ciphertext-Policy / Multi-Authority / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 110, no. 113, ISEC2010-30, pp. 153-158, July 2010. |
Paper # |
ISEC2010-30 |
Date of Issue |
2010-06-24 (ISEC, SITE, ICSS) |
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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ISEC2010-30 SITE2010-26 ICSS2010-36 |
Conference Information |
Committee |
ISEC IPSJ-CSEC SITE ICSS |
Conference Date |
2010-07-01 - 2010-07-02 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Hirosaki University |
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Paper Information |
Registration To |
ISEC |
Conference Code |
2010-07-ISEC-CSEC-SITE-ICSS |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
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(See Japanese page) |
Title (in English) |
Attribute-based encryption with arbitrary number of authorities |
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Attribute-Based Encryption |
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Ciphertext-Policy |
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Multi-Authority |
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1st Author's Name |
Go Ohtake |
1st Author's Affiliation |
Japan Broadcasting Corporation/Institute of Information Security (NHK/IISEC) |
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Hiroshi Doi |
2nd Author's Affiliation |
Institute of Information Security (IISEC) |
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Speaker |
Author-1 |
Date Time |
2010-07-02 13:25:00 |
Presentation Time |
25 minutes |
Registration for |
ISEC |
Paper # |
ISEC2010-30, SITE2010-26, ICSS2010-36 |
Volume (vol) |
vol.110 |
Number (no) |
no.113(ISEC), no.114(SITE), no.115(ICSS) |
Page |
pp.153-158 |
#Pages |
6 |
Date of Issue |
2010-06-24 (ISEC, SITE, ICSS) |
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