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| Presentation | 2019-11-02 10:00 Evolving Secret Sharing: Hierarchical Access Structure with Polynomial Share Size Sabyasachi Dutta (Univ. of Calgary), Partha Sarathi Roy, Kazuhide Fukushima, Shinsaku Kiyomoto (KDDI Research), Kouichi Sakurai (Kyushu Univ.)  ISEC2019-76 SITE2019-70 LOIS2019-35 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Secret sharing allows storing secret information in a distributed manner among several participants. The original setting of secret sharing schemes assumes that the total number of participants does not change from the very beginning. However, we need to consider the scenario where any time a new participant can join, and the total number of participants is (possibly) unbounded. Evolving secret sharing solves the problem, and secret sharing for evolving threshold access structure has been considered in the last few years. In this paper, we study multi-level access structures, and more specifically, evolving compartmental and hierarchical access structures. We provide concrete constructions with the estimation of share sizes. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Evolving Access Structure / compartmental access structure / hierarchical access structure / information theoretic security / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 119, no. 257, ISEC2019-76, pp. 93-98, Nov. 2019. | |
| Paper # | ISEC2019-76 | |
| Date of Issue | 2019-10-25 (ISEC, SITE, LOIS) | |
| 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) | |
| Download PDF | ISEC2019-76 SITE2019-70 LOIS2019-35 |
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| Conference Information | |
| Committee | ISEC SITE LOIS |
| Conference Date | 2019-11-01 - 2019-11-02 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Osaka Univ. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | ISEC |
| Conference Code | 2019-11-ISEC-SITE-LOIS |
| Language | English |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Evolving Secret Sharing: Hierarchical Access Structure with Polynomial Share Size |
| Sub Title (in English) | |
| Keyword(1) | Evolving Access Structure |
| Keyword(2) | compartmental access structure |
| Keyword(3) | hierarchical access structure |
| Keyword(4) | information theoretic security |
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| 1st Author's Name | Sabyasachi Dutta |
| 1st Author's Affiliation | University of Calgary (Univ. of Calgary) |
| 2nd Author's Name | Partha Sarathi Roy |
| 2nd Author's Affiliation | KDDI Research Laboratory (KDDI Research) |
| 3rd Author's Name | Kazuhide Fukushima |
| 3rd Author's Affiliation | KDDI Research Laboratory (KDDI Research) |
| 4th Author's Name | Shinsaku Kiyomoto |
| 4th Author's Affiliation | KDDI Research Laboratory (KDDI Research) |
| 5th Author's Name | Kouichi Sakurai |
| 5th Author's Affiliation | Kyushu University (Kyushu Univ.) |
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| Speaker | Author-5 |
| Date Time | 2019-11-02 10:00:00 |
| Presentation Time | 25 minutes |
| Registration for | ISEC |
| Paper # | ISEC2019-76, SITE2019-70, LOIS2019-35 |
| Volume (vol) | vol.119 |
| Number (no) | no.257(ISEC), no.258(SITE), no.259(LOIS) |
| Page | pp.93-98 |
| #Pages | 6 |
| Date of Issue | 2019-10-25 (ISEC, SITE, LOIS) |
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