Summary
IEICE Information and Communication Technology Forum
2017
Session Number:SESSION07
Session:
Number:SESSION07_1
Cost Effective Dummy Generation Scheme in Non-Trusted LBS
Sanghun Choi, Shuichiro Haruta, Hiromu Asahina, Iwao Sasase,
pp.-
Publication Date:2017/10/1
Online ISSN:2188-5079
DOI:10.34385/proc.50.SESSION07_1
Summary:
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 from the LBS.In this paper, in order to overcome shortcomings what mentioned above, we propose the Cost Effective Dummy Generation Scheme in Non-Trusted LBS. The main idea of our scheme is that Non-Trusted LBS creates dummy locations which include the user’s real location for reducing the user’s communication cost. In spite of allowing the LBS to generate the dummy location, the user’s location privacy is protected. 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.