Summary

Content is produced, shared, exchanged and consumed through various media services. However, media services are associated with many inherent risks. In order to minimize unexpected risks and to maximize the survivability of media services, trust can be used to evaluate and verify that entities involved in media services are working in expected ways. Trust-based media services aim to restrain untrustworthy users from behaving maliciously, as well as being robust to unexpected executions and failures with a certain level of predictability and reliability.

Thus, Recommendation ITU-T Y.3054 provides a framework for trust-based media services. Recommendation ITU-T Y.3054 identifies inherent risks in existing media services and describes the necessity for trust-based media services. After identifying functional requirements, the Recommendation describes components and a functional architecture for trust-based media services. Finally, trust-based content consumption and sharing services are introduced along with a trust analysis mechanism for trust-based media services.