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| Presentation | 2017-07-27 09:36 Low Cost Dummy Generation using Non-Trusted LBS Sanghun Choi, Shuichiro Haruta, Hiromu Asahina, Iwao Sasase (Keio Univ.)  CS2017-14 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Although LBS(Location Based Service) is quite convenient and usually used these days, The location privacy of the user is not guaranteed from the LBS. If LBS itself is malicious, It is dangerous what the user’s raw location data sends to the LBS. The promising approach to protect the user’s location privacy is utilizing the dummy which is the fake location of the user. In the conventional schemes, the users themselves or the TTPS (Trusted Third Party Server) generates the dummies and sends them to the LBS with his/her real location. However, these schemes have shortcomings. In case of the user generates the dummies, the computational cost is high on the user’s mobile devices. In these cases, the communication cost is also high since the user must receive all data of the dummies locations. In this paper, in order to overcome shortcomings what mentioned above, we propose the Cost Effective Dummy Generation Scheme Based on Non-Trusted LBS. The main idea of our scheme is that Non-Trusted LBS creates dummy locations which include user’s real location for reducing the user’s communication cost. In spite of allowing LBS to generate the dummy location, the user’s location privacy is protected. Through the XOR operation, the user’s value is restored and protected from the LBS which is malicious. The LBS receives all of random number and the user’s converted coordinate and performs the XOR operation, the LBS can generate multiple dummy locations which include his/her real location. Furthermore, in order to reduce communication cost, we combine our scheme with PIR-based method. Our method is enable the user to receive only him/her data by hiding the information which is him/her searched places from the LBS. We demonstrate the reduction of the communication cost and the the reliability of our scheme by the computer simulation and the analysis. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Location Privacy / Non-Trusted LBS / Dummy Generation / LBS / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 117, no. 156, CS2017-14, pp. 7-12, July 2017. | |
| Paper # | CS2017-14 | |
| Date of Issue | 2017-07-20 (CS) | |
| 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) | |
| Notes on Review | This article is a technical report without peer review, and its polished version will be published elsewhere. | |
| Download PDF | CS2017-14 |
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| Conference Information | |
| Committee | CS |
| Conference Date | 2017-07-27 - 2017-07-28 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Fukue Bunka Kaikan |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Next generation networks, access network, broadband access system, power-line communications, wireless communication systems, coding system, etc. |
| Paper Information | |
| Registration To | CS |
| Conference Code | 2017-07-CS |
| Language | English (Japanese title is available) |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Low Cost Dummy Generation using Non-Trusted LBS |
| Sub Title (in English) | |
| Keyword(1) | Location Privacy |
| Keyword(2) | Non-Trusted LBS |
| Keyword(3) | Dummy Generation |
| Keyword(4) | LBS |
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| 1st Author's Name | Sanghun Choi |
| 1st Author's Affiliation | Keio University (Keio Univ.) |
| 2nd Author's Name | Shuichiro Haruta |
| 2nd Author's Affiliation | Keio University (Keio Univ.) |
| 3rd Author's Name | Hiromu Asahina |
| 3rd Author's Affiliation | Keio University (Keio Univ.) |
| 4th Author's Name | Iwao Sasase |
| 4th Author's Affiliation | Keio University (Keio Univ.) |
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| Speaker | Author-1 |
| Date Time | 2017-07-27 09:36:00 |
| Presentation Time | 3 minutes |
| Registration for | CS |
| Paper # | CS2017-14 |
| Volume (vol) | vol.117 |
| Number (no) | no.156 |
| Page | pp.7-12 |
| #Pages | 6 |
| Date of Issue | 2017-07-20 (CS) |
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