Paper Abstract and Keywords |
Presentation |
2019-06-22 10:50
Efficient Similar Document Search over Encrypted Data On the Cloud Daisuke Aritomo (Univ. of Tsukuba), Chiemi Watanabe (NTUT) DE2019-7 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
More and more data owners are building information retrieval systems on cloud computing platforms, which provides scalable computing resources at an economical rate. In these situations, data encryption must be deployed to protect private and sensitive data from unauthorized accesses. However, this defeats the whole point of cloud computing; the data needs to be decrypted and consumed on the client side.
In this paper, we introduce a practical searchable encryption scheme which supports keyword search and similar document search, based on the Vector Space Model (VSM), by employing homomorphic encryption (HE). HE is an encryption scheme where arithmetic calculations can be performed without decryption. We first build a term index tree to filter out irrelevant documents. Subsequently, we perform cosine similarity calculation upon search requests.
Experiments on real-world datasets indicate that our scheme can effectively provide practical keyword search in a cloud environment. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Searchable Encryption / Homomorphic Encryption / Word Embedding / Information Retrieval / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 119, no. 99, DE2019-7, pp. 29-34, June 2019. |
Paper # |
DE2019-7 |
Date of Issue |
2019-06-15 (DE) |
ISSN |
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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DE2019-7 |
Conference Information |
Committee |
DE |
Conference Date |
2019-06-22 - 2019-06-22 |
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(See Japanese page) |
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Paper Information |
Registration To |
DE |
Conference Code |
2019-06-DE |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Efficient Similar Document Search over Encrypted Data On the Cloud |
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Keyword(1) |
Searchable Encryption |
Keyword(2) |
Homomorphic Encryption |
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Word Embedding |
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Information Retrieval |
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1st Author's Name |
Daisuke Aritomo |
1st Author's Affiliation |
University of Tsukuba (Univ. of Tsukuba) |
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Chiemi Watanabe |
2nd Author's Affiliation |
Tsukuba University of Technology (NTUT) |
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Speaker |
Author-1 |
Date Time |
2019-06-22 10:50:00 |
Presentation Time |
20 minutes |
Registration for |
DE |
Paper # |
DE2019-7 |
Volume (vol) |
vol.119 |
Number (no) |
no.99 |
Page |
pp.29-34 |
#Pages |
6 |
Date of Issue |
2019-06-15 (DE) |
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