Trust-Based Access Control in Multi-role Environment of Online Social Networks

In the last decade, online social networks have seen a boom with respect to the use and applications. Many users upload large quantity of data that may risk the data security and access control. Trust-based access control strategy was used initially for the owner and his friends in order to restrict the data access using a well defined Trust Rule. The paper has implemented trust-based access control depending on the different roles played by the user. User plays different roles like owner, contributor, disseminator and stakeholder. Aggregated trust score computation and security level computation has been calculated in multi-role environment depending on different multi-role scenarios The proposed novel concept solves the access control problem where the user plays multiple roles that have been further discussed.