Current popular and widely adopted Online Social Networks (OSNs) all follow a logically
centered architecture, by which one single entity owns unprecedented collections of …

Abstract Decentralized Online Social Networks (DOSNs) have recently captured the interest
of users because of the more control given to them over their shared contents. Indeed, most …

Recent technologies, such as IoT, social networks, cloud computing, and data analytics,
make today possible to collect huge amounts of data. However, for data to be used to their …

Credit networks model transitive trust (or credit) between users in a distributed environment
and have recently seen a rapid increase of popularity due to their flexible design and …

Online social networks (OSNs) such as Facebook and Google+ have transformed the way
our society communicates. However, this success has come at the cost of user privacy; in …

The widespread diffusion of Online Social Networks has given unforeseen opportunities for
their users to share contents and mutually interact. However, current platforms offer …

Because of growing popularity of Online Social Networks (OSNs) and huge amount of
sensitive shared data, preserving privacy is becoming a major issue for OSN users. While …

The use of online social networks, such as Facebook and Twitter, has grown at a
phenomenal rate. These platforms offer services that support interactions via messaging …

Third-party applications on Facebook can collect personal data of the users who install
them, but also of their friends. This raises serious privacy issues as these friends are not …

Today's social networking services require users to trust the service provider with the
confidentiality and integrity of their data. But with their history of data leaks and privacy …