Traitor Tracing Schemes - Eurocrypt 2023 Session

Explore a comprehensive session from Eurocrypt 2023 focused on Traitor Tracing Schemes. Delve into the motivation behind broadcast, trace, and revoke systems, examining their goals and prior work in public and secret traceability. Investigate the assumptions and building blocks for these schemes, comparing public-key and secret-key approaches. Learn about revocable predicate encryption, secret key RPE, and optimal parameters. Gain insights into traitor tracing syntax, security, and schemes with optimal sizes, including those based on pairing. Discover the connections between revocable PLBE and traitor tracing, as well as attribute-based functional encryption. Conclude by addressing adaptive security and considering open questions in the field.