MobiShare: Flexible privacy-preserving location sharing in mobile online social networks

Wei, Wei; Xu, Fengyuan; Li, Qun

doi:10.1109/infcom.2012.6195664

Cited by 84 publications

(49 citation statements)

References 9 publications

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“…The study of location-based anonymize scheme has gained the great interest from the research community recently, and we briefly review some of them related to our work [26][27][28][29][30][31]. In [26], users' location is encrypted when shared in mobile social applications and can be only decrypted by the data owner.…”

Section: Related Workmentioning

confidence: 99%

“…In [27], the credential information is updated on the basis of mobile cloud packets exchange, protecting against credential faking or stealing attacks. MobiShare [28] is a location privacy framework in mobile online social networks by separating user identities and anonymized location updates. Secure mobile user-based data service mechanism (SDSM) [29] provided confidentiality access control for data stored in the cloud by identity-based proxy reencryption scheme.…”

Section: Related Workmentioning

confidence: 99%

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Prophet: A Context-Aware Location Privacy-Preserving Scheme in Location Sharing Service

Zhang

Fang

2017

Discrete Dynamics in Nature and Society

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Location sharing service has become an indispensable part in mobile social networks. However, location sharing may introduce a new class of privacy threats ranging from localizing an individual to profiling and identifying him based on the places he shared. Although users may avoid releasing geocontent in sensitive locations, it does not necessarily prevent the adversary from inferring users' privacy through space-temporal correlations and historical information. In this paper, we design a Prophet framework, which provides an effective security scheme for users sharing their location information. First, we define fingerprint identification based on Markov chain and state classification to describe the users' behavior patterns. Then, we propose a novel location anonymization mechanism, which adopts a -indistinguishability strategy to protect user's sensitive location information published. Finally, experimental results are given to illustrate good performance and effectiveness of the proposed scheme.

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Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Prophet: A Context-Aware Location Privacy-Preserving Scheme in Location Sharing Service

Zhang

Fang

2017

Discrete Dynamics in Nature and Society

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“…Privacy and security must be built into the design. This is the goal of [15], [16], and [3]. Each of these papers attempt to design one specific locationbased service in a privacy preserving way.…”

Section: Related Workmentioning

confidence: 99%

“…Each of these papers attempt to design one specific locationbased service in a privacy preserving way. Mobishare, [15], allows users to share their (authenticated) location values with one another, without allowing any third parties to link user (OSN profile) with location. However, it requires significant changes to the infrastructure including cellular towers.…”

Section: Related Workmentioning

confidence: 99%

Near-pri: Private, proximity based location sharing

Novak

2014

IEEE INFOCOM 2014 - IEEE Conference on Computer Communications

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Abstract-As the ubiquity of smartphones increases we see an increase in the popularity of location based services. Specifically, online social networks provide services such as alerting the user of friend co-location, and finding a user's k nearest neighbors. Location information is sensitive, which makes privacy a strong concern for location based systems like these. We have built one such service that allows two parties to share location information privately and securely. Our system allows every user to maintain and enforce their own policy. When one party, (Alice), queries the location of another party, (Bob), our system uses homomorphic encryption to test if Alice is within Bob's policy. If she is, Bob's location is shared with Alice only. If she is not, no user location information is shared with anyone. Due to the importance and sensitivity of location information, and the easily deployable design of our system, we offer a useful, practical, and important system to users. Our main contribution is a flexible, practical protocol for private proximity testing, a useful and efficient technique for representing location values, and a working implementation of the system we design in this paper. It is implemented as an Android application with the Facebook online social network used for communication between users.

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“…Recently, in mONSs, several methods [7][8][9][10][11] have been proposed to protect users' location privacy in friends' and strangers' queries in the user-specified distance. In the research of [7][8][9][10], user's location privacy is protected by adding dummy identities.…”

Section: Introductionmentioning

confidence: 99%

User-defined privacy location-sharing system in mobile online social networks

Sun

Xie

Liu

et al. 2017

Journal of Network and Computer Applications

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With the fusion of social networks and location-based services, location sharing is one of the most important services in mobile online social networks (mOSNs). In location-sharing services, users have to provide their location information to service provider. However, location information is sensitive to users, which may cause a privacy-preserving issue needs to be solved. In the existing research, location-sharing services, such as friends' query, does not consider the attacks from friends. In fact, a user may not trust all of his/her friends, so just a part of his/her friends will be allowed to obtain the user's location information. In addition, users' location privacy and social network privacy should be guaranteed. In order to solve the above problems, we propose a new architecture and a new scheme called User-Defined Privacy Location-Sharing (UDPLS) system for mOSNs. In our scheme, the query time is almost irrelevant to the number of friends. We also evaluate the performance and validate the correctness of our proposed algorithm through extensive simulations.

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MobiShare: Flexible privacy-preserving location sharing in mobile online social networks

Cited by 84 publications

References 9 publications

Prophet: A Context-Aware Location Privacy-Preserving Scheme in Location Sharing Service

Prophet: A Context-Aware Location Privacy-Preserving Scheme in Location Sharing Service

Near-pri: Private, proximity based location sharing

User-defined privacy location-sharing system in mobile online social networks

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