
7/8/2022 · Bas Westerbaan
What this post added
This post details NIST's announcement of the first four post-quantum cryptographic algorithms to be standardized: Kyber for key agreement and three signature schemes. It explains the threat posed by Shor's algorithm and quantum computers to current public-key cryptography (key agreement and digital signatures). The post compares Kyber's performance and key/ciphertext sizes to existing schemes like X25519 and RSA, discussing the implications of larger sizes for TLS implementations. It also touches upon the other PQC finalists and their potential future standardization.