Title
Achieving User-Defined Location Privacy Preservation Using a P2P System.
Abstract
As location-based services become widely used in daily life, there is growing concern in preserving location privacy of users to avoid that attackers infer information about users by collecting and analyzing requests initiated by users. We argue that a good location privacy preservation scheme should have these properties. First, a user should never expose its precise location to any other entity. Second, a user should be able to specify its own requirement on the strength of privacy preservation, since a stricter preservation requirement may increase its overhead. Third, the scheme should be able to preserve as many as possible aspects of users' privacy under various attacks. With these desired properties in mind, we carefully design an encoding scheme of users' identifiers and a fully distributed architecture for our purpose and propose a privacy preservation scheme based on them. With the help of the encoding scheme and the distributed architecture, we develop a distributed negotiation algorithm to help users conduct negotiations among themselves to find their cloaked regions that satisfy their self-defined requirements without exposing their precise locations. The negotiations are completed without coordination from any central servers, and a random proxy is selected for each individual request, therefore the potential risks caused by any central server (location-based service servers or trusted-third-party servers) are mitigated as much as possible. Experiments show that our scheme can satisfy different strengths of privacy preservation required by each user even under the most severe scenarios.
Year
DOI
Venue
2020
10.1109/ACCESS.2020.2978488
IEEE ACCESS
Keywords
DocType
Volume
Privacy,Servers,Peer-to-peer computing,Resistance,Encoding,Computer architecture,Global Positioning System,k-anonymity,location-based service,location privacy,peer-to-peer
Journal
8
ISSN
Citations 
PageRank 
2169-3536
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Shengchao Liu121.05
Jessie Hui Wang211820.10
Jilong Wang35719.88
Qianli Zhang4245.41