Explore a conference talk from PQCrypto 2023, the 14th International Conference on Post-Quantum Cryptography, focusing on digital signatures. Delve into the presentation by Jiawei Chen on "A Tightly Secure Identity-based Signature Scheme from Isogenies." Learn about the collaborative work of Chen, Hyungrok Jo, Shingo Sato, and Junji Shikata as they discuss their innovative approach to identity-based signatures using isogeny-based cryptography. Gain insights into this cutting-edge research in post-quantum cryptography during this 21-minute session, which is part of the conference's first session on digital signatures.