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2009
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CAP: A Context-Aware Privacy Protection System for Location-Based Services

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CAP: A Context-Aware Privacy Protection System for Location-Based Services
We address issues related to privacy protection in location-based services (LBS). Most existing research in this field either requires a trusted third-party (anonymizer) or uses oblivious protocols that are computationally and communicationally expensive. Our design of privacy-preserving techniques is principled on not requiring a trusted thirdparty while being highly efficient in terms of time and space complexities. The problem has two interesting and challenging characteristics: First, the degree of privacy protection and LBS accuracy depends on the context, such as population and road density, around a user’s location. Second, an adversary may violate a user’s location privacy in two ways: (i) based on the user’s location information contained in the LBS query payload, and (ii) by inferring a user’s geographical location based on its device’s IP address. To address these challenges, we introduce CAP, a Context-Aware Privacy-preserving LBS system with integrated protect...
Aniket Pingley, Wei Yu, Nan Zhang 0004, Xinwen Fu,
Added 08 Mar 2010
Updated 08 Mar 2010
Type Conference
Year 2009
Where ICDCS
Authors Aniket Pingley, Wei Yu, Nan Zhang 0004, Xinwen Fu, Wei Zhao
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