Tagged: post-quantum

Post-quantum TLS: ML-KEM, X25519MLKEM768, and the hybrid handshake

Traces why TLS added post-quantum key exchange, how ML-KEM (FIPS 203) works, how the X25519MLKEM768 hybrid construction is built, and how the 2024-2026 browser rollout grew the ClientHello past one packet.

tls post-quantum cryptography

Sun, January 18, 2026 · 21 min read

How post-quantum key exchange changes the TLS fingerprint surface

Traces how the 1,216-byte X25519MLKEM768 key share splits the ClientHello across packets, why classic TLS libraries without it now stand out, and what matching a 2026 Chrome handshake actually requires.

tls post-quantum fingerprinting

Sat, January 17, 2026 · 18 min read