Propagation of trust and distrust
Proceedings of the 13th international conference on World Wide Web
Predicting trusts among users of online communities: an epinions case study
Proceedings of the 9th ACM conference on Electronic commerce
Enforcing access control in Web-based social networks
ACM Transactions on Information and System Security (TISSEC)
Privacy wizards for social networking sites
Proceedings of the 19th international conference on World wide web
Learning based access control in online social networks
Proceedings of the 19th international conference on World wide web
Proceedings of the 20th international conference on World wide web
A reachability-based access control model for online social networks
Databases and Social Networks
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While online social networks (OSN) present unprecedented opportunities for sharing information and multimedia content among users, they raise major privacy issues as users could often access personal or confidential data of other users. Most social networks provide some basic access control policies, which however seem to be very limited given the diversity of user relationships in the current social networks (e.g. friend, acquaintance, son) as well as the needs of social network users who might want to express sophisticated access control policies (e.g. invite all children of my colleagues to my child's birthday party). In this demonstration proposal, we present Primates a privacy management system for social networks. Primates allows users to specify access control rules for their resources and enforces access control over all shared resources. The set of users who are allowed to access a given resource is defined by a set of constraints on the paths connecting the owner of a resource to its requester in the social graph. We demonstrate the accuracy of our access control model and the scalability of our system.