IAB co-chairs list obstacles for post-quantum authentication

Following an Internet Architecture Board workshop in Prague, co-chairs Yaroslav Rosomakho and Nick Sullivan report that deploying post-quantum authentication faces four primary obstacles: significantly larger keys and signatures that break existing size limits, long deployment timelines for verifiers and roots of trust, trade-offs in alternative approaches like Merkle trees and composites, and a risk of fragmentation due to diverging regulatory standards. Open article →