Identity-Based -Lossy- Trapdoor Functions and Applications

Explore a 24-minute talk from Eurocrypt 2012 on Identity-Based (Lossy) Trapdoor Functions and Applications, presented by authors Mihir Bellare, Eike Kiltz, Chris Peikert, and Brent Waters. Delve into key concepts such as injective trapdoor functions, security notions, and lossy trapdoor functions. Examine the paper's focus on ID-based encryption (IBE) and ID-based trapdoor functions, including their security aspects like one-wayness, selective lossiness, and adaptive lossiness. Discover the implications of these concepts and learn about two constructions: one based on pairings for ID-based TDF and another utilizing lattices. Gain insights into this important cryptographic topic through a comprehensive overview of the research presented at this prestigious conference.