Large-scale quantum computers have the potential to break common asymmetric cryptography used on the Internet, leading to the need for post-quantum cryptography. NIST’s PQC competition identified potential algorithms for this transition, but many believe the current standards are not sufficient for deployment due to large signature and public key sizes. Algorithms like ML-DSA, UOV, SQISign, and Mayo are being considered, but trade-offs in size and performance exist. Solutions to reduce latency and improve efficiency, such as intermediate certificate suppression and PKI migrations, are crucial. The challenge lies in finding algorithms with performance comparable to RSA-2048 to ensure a smooth transition to quantum-resistant authentication.
https://dadrian.io/blog/posts/pqc-signatures-2024/