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A distributed location obfuscation method for online route planning

Corcoran, Padraig, Mooney, Peter and Gagarin, Andrei 2020. A distributed location obfuscation method for online route planning. Computers and Security 95 , 101850. 10.1016/j.cose.2020.101850

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Abstract

A novel location obfuscation method for online route planning is proposed which is robust to privacy inferences by the service provider regarding route source and destination. This is achieved by performing the task of route computation in a distributed manner. Specifically, the client decomposes the required route into a sequence of shorter routes between intermediate locations. These routes are subsequently requested from independent online route planners with the results being integrated by the client to give the route originally required. Robustness to privacy inferences is a consequence of the fact that, without significant coordination and sharing of information, an individual online route planner cannot infer with high probability the true route source or destination. An evaluation of the proposed method is performed in the context of route planning within the street network of Boston. This evaluation demonstrates that the proposed method offers robustness to privacy inferences while exhibiting a reasonable reduction in quality of service.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Mathematics
Computer Science & Informatics
Publisher: Elsevier
ISSN: 0167-4048
Date of Acceptance: 20 April 2020
Last Modified: 31 Jul 2020 15:50
URI: http://orca.cf.ac.uk/id/eprint/131758

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