TRUST BASED PROFILE COORDINATING SECURE SOCIAL SYSTEMS
Samuel Solomon · Zenodo (CERN European Organization for Nuclear Research) · 2022
The statistics of photo sharing on social networks proposes a three realms model: a social realm, in which identities are entities, and friendship is a relation; second, a visual sensory realm, of which faces are entities, and co-occurrence in images a relation; and third, a physical realm, in which bodies belong, with physical proximity being a relation. Information sharing is an attractive feature which popularizes Online Social Networks (OSNs). To prevent possible privacy leakage of photos, we design a mechanism to enable each individual in a photo be aware of the posting activity and participate in the decision making on the posting and tagging. Unfortunately, it may leak users’ privacy if they are allowed to post, comment, and tag a photo freely. If a request is sent to another person it will show the matches and mismatches. Then for user tagging or adding to a group it will not automatically tag it will ask for permission from the user. Each user is able to define his/her privacy policy and exposure policy. Only when a photo is processed with owner’s privacy policy and co-owner’s exposure policy could it be posted. However, the co-owners of a co-photo cannot be determined automatically, instead, potential co-owners could only be identified by using the tagging features on the current OSNs.