Paper Abstract and Keywords |
Presentation |
2013-03-07 14:50
Improved Algorithms for Computing Relational Algebra Operators for Secure Function Evaluation Koki Hamada, Dai Ikarashi, Koji Chida (NTT) LOIS2012-82 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
We propose algorithms that efficiently computes relational algebra operations over secure function evaluation. Relational algebra is a set of operations for manipulating relational databases. It is shown that all operations are derived from five primitive operators: the selection, the projection, the cross product, the set union, and the set difference. Algorithms that realize these primitive operators and additional important operators the set intersection, the join, and the division are proposed. We improve the efficiency of these operations except already symptotically optimal operations. We propose algorithms that conduct the set difference, the set union, the set intersection, and division perators in O(log(m + n)) rounds and O((m + n)log(m + n)) communications where m and n represent the sizes of the input tables. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
secure multi-party computation / relational algebra / / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 112, no. 466, LOIS2012-82, pp. 77-82, March 2013. |
Paper # |
LOIS2012-82 |
Date of Issue |
2013-02-28 (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) |
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LOIS2012-82 |
Conference Information |
Committee |
LOIS |
Conference Date |
2013-03-07 - 2013-03-08 |
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(See Japanese page) |
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LOIS |
Conference Code |
2013-03-LOIS |
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Japanese |
Title (in Japanese) |
(See Japanese page) |
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(See Japanese page) |
Title (in English) |
Improved Algorithms for Computing Relational Algebra Operators for Secure Function Evaluation |
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secure multi-party computation |
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relational algebra |
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1st Author's Name |
Koki Hamada |
1st Author's Affiliation |
NTT Corporation (NTT) |
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Dai Ikarashi |
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NTT Corporation (NTT) |
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Koji Chida |
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NTT Corporation (NTT) |
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Speaker |
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Date Time |
2013-03-07 14:50:00 |
Presentation Time |
20 minutes |
Registration for |
LOIS |
Paper # |
LOIS2012-82 |
Volume (vol) |
vol.112 |
Number (no) |
no.466 |
Page |
pp.77-82 |
#Pages |
6 |
Date of Issue |
2013-02-28 (LOIS) |
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