A caching and spatialK-anonymity driven privacy enhancement scheme in continuous location-based services

Privacy Protection through Anonymity in Location-based Services

Privacy Preserving Scheme for Location-Based Services

Homomorphic encryption schemes make it possible to perform arithmetic operations, like additions and multiplications, over encrypted values. This capability provides enhanced protection for data and offers new research directions, including blind data processing. Using homomorphic encryption schemes, a Location-Based Service (LBS) can process encrypted inputs to retrieve encrypted location-rela...

A Clustering K-Anonymity Scheme for Location Privacy Preservation

The continuous advances in sensing and positioning technologies have resulted in a dramatic increase in popularity of LocationBased Services (LBS). Nevertheless, the LBS can lead to user privacy breach due to sharing location information with potentially malicious services. A high degree of location privacy preservation for LBS is extremely required. In this paper, a clustering K-anonymity sche...

A context-aware scheme for privacy-preserving location-based services

1389-1286/$ see front matter 2012 Elsevier B.V http://dx.doi.org/10.1016/j.comnet.2012.03.022 ⇑ Corresponding author. E-mail addresses: [email protected] (A. Pingle (W. Yu), [email protected] (N. Zhang), xinwenfu [email protected] (W. Zhao). We address issues related to privacy protection in location-based services (LBSs). Most existing privacy-preserving LBS techniques either require a trusted thi...

Anonymity and Historical-Anonymity in Location-Based Services

The problem of protecting user’s privacy in Location-Based Services (LBS) has been extensively studied recently and several defense techniques have been proposed. In this contribution, we first present a categorization of privacy attacks and related defenses. Then, we consider the class of defense techniques that aim at providing privacy through anonymity and in particular algorithms achieving ...