ONLINE MODEL ACCESS THROUGH USER DECISION AND SOCIAL NETWORK

Online Social Networks (OSNs) such as Facebook, Google, and Twitter are inherently
designed to enable people to share personal and public information and make social connections
with friends, coworkers, colleagues, family, and even with strangers. A typical OSN provides
each user with a virtual space containing profile information, a list of the user’s friends, and
webpages, such as wall in Facebook, where users and friends can post content and leave
messages. In addition, users can not only upload content into their own or others’ spaces but also
tag other users who appear in the content. Although OSNs currently provide simple access
control mechanisms allowing users to govern access to information contained in their own
spaces, users, unfortunately, have no control over data residing outside their spaces. To
overcome the problem based on Online Social Networks, a systematic solution to facilitate
multiparty access control (MPAC) of shared data in OSNs is introduced. The user can share their
data or images to their friends. When the user is tried to share other user’s data, the request will
be send to the owner of the data. After receiving the request, the owner of the data has rights to
accept or reject the request. The User can only share other data after getting the approval from
the data owner; otherwise the user cannot share that data to others.