Cryptanalysis of a Centralized Location-Sharing Scheme for Mobile Online Social Networks

2020 ◽  
pp. 17-30
Author(s):  
Munmun Bhattacharya ◽  
Sandip Roy ◽  
Soumya Banerjee ◽  
Samiran Chattopadhyay
Keyword(s):  
Social Networks ◽  
Online Social Networks ◽  
Location Sharing ◽  
Sharing Scheme

scholarly journals PPLS: a privacy-preserving location-sharing scheme in mobile online social networks

2020 ◽  
Vol 63 (3) ◽  
Author(s):  
Chang Xu ◽  
Xuan Xie ◽  
Liehuang Zhu ◽  
Kashif Sharif ◽  
Chuan Zhang ◽  
...  
Keyword(s):  
Social Networks ◽  
Online Social Networks ◽  
Privacy Preserving ◽  
Location Sharing ◽  
Sharing Scheme

scholarly journals Location-sharing protocol for privacy protection in mobile online social networks

2021 ◽  
Vol 2021 (1) ◽  
Author(s):  
Ou Ruan ◽  
Lixiao Zhang ◽  
Yuanyuan Zhang
Keyword(s):  
Social Networks ◽  
Private Information ◽  
Online Social Networks ◽  
Smart Cities ◽  
Location Based Services ◽  
Broadcast Encryption ◽  
Location Sharing ◽  
Identity Privacy ◽  
And Performance ◽  
Network Server

AbstractLocation-based services are becoming more and more popular in mobile online social networks (mOSNs) for smart cities, but users’ privacy also has aroused widespread concern, such as locations, friend sets and other private information. At present, many protocols have been proposed, but these protocols are inefficient and ignore some security risks. In the paper, we present a new location-sharing protocol, which solves two issues by using symmetric/asymmetric encryption properly. We adopt the following methods to reduce the communication and computation costs: only setting up one location server; connecting social network server and location server directly instead of through cellular towers; avoiding broadcast encryption. We introduce dummy identities to protect users’ identity privacy, and prevent location server from inferring users’ activity tracks by updating dummy identities in time. The details of security and performance analysis with related protocols show that our protocol enjoys two advantages: (1) it’s more efficient than related protocols, which greatly reduces the computation and communication costs; (2) it satisfies all security goals; however, most previous protocols only meet some security goals.

N-Mobishare: new privacy-preserving location-sharing system for mobile online social networks

2014 ◽  
Vol 93 (2) ◽  
pp. 384-400 ◽  
Author(s):  
Zheli Liu ◽  
Dejiang Luo ◽  
Jin Li ◽  
Xiaofeng Chen ◽  
Chunfu Jia
Keyword(s):  
Social Networks ◽  
Online Social Networks ◽  
Privacy Preserving ◽  
Location Sharing

CenLocShare: A centralized privacy-preserving location-sharing system for mobile online social networks

2018 ◽  
Vol 86 ◽  
pp. 863-872 ◽  
Author(s):  
Xi Xiao ◽  
Chunhui Chen ◽  
Arun Kumar Sangaiah ◽  
Guangwu Hu ◽  
Runguo Ye ◽  
...  
Keyword(s):  
Social Networks ◽  
Online Social Networks ◽  
Privacy Preserving ◽  
Location Sharing

Privacy Enhanced Location Sharing for Mobile Online Social Networks

2020 ◽  
Vol 5 (2) ◽  
pp. 279-290 ◽  
Author(s):  
Junggab Son ◽  
Donghyun Kim ◽  
Md Zakirul Alam Bhuiyan ◽  
Rahman Tashakkori ◽  
Jungtaek Seo ◽  
...  
Keyword(s):  
Social Networks ◽  
Online Social Networks ◽  
Location Sharing

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

2017 ◽  
Vol 86 ◽  
pp. 34-45 ◽  
Author(s):  
Gang Sun ◽  
Yuxia Xie ◽  
Dan Liao ◽  
Hongfang Yu ◽  
Victor Chang
Keyword(s):  
Social Networks ◽  
Online Social Networks ◽  
Location Sharing

scholarly journals A Search Efficient Privacy-Preserving Location-Sharing Scheme in Mobile Online Social Networks

2020 ◽  
Vol 10 (23) ◽  
pp. 8402
Author(s):  
Guangcan Yang ◽  
Shoushan Luo ◽  
Yang Xin ◽  
Hongliang Zhu ◽  
Jingkai Wang ◽  
...  
Keyword(s):  
Social Networks ◽  
Private Information ◽  
Online Social Networks ◽  
Security Analysis ◽  
Control Policy ◽  
Privacy Preserving ◽  
Handheld Devices ◽  
Location Sharing ◽  
Trade Offs ◽  
And Performance

With the advent of intelligent handheld devices, location sharing becomes one of the most popular services in mobile online social networks (mOSNs). In location-sharing services, users can enjoy a better social experience by updating their real-time location information. However, the leakage of private information may hinder the further development of location-sharing services. Although many solutions have been proposed to protect users’ privacy, the privacy-utility trade-offs must be considered. Therefore, we propose a new scheme called search efficient privacy-preserving location-sharing (SELS) system. In our scheme, we create a new approach named associated grids to improve the efficiency of location-sharing systems while maintaining users’ privacy. In addition, by setting the user-defined access control policy proposed in our scheme, users’ flexible privacy-preserving requirements can be satisfied. Detailed complexity and security analysis show that the proposed scheme is a practical and efficient privacy-preserving solution. Extensive simulations are performed to validate the effectiveness and performance of our scheme.

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