Chrome ramps to quantum-proof HTTPS with Merkle-tree certificates
Chrome is testing quantum-resistant HTTPS that uses Merkle-tree proofs, letting browsers verify certificates with tiny proofs instead of large data; a Tree Head signs millions of certs, keeping the data near 64 bytes. The plan for a broader rollout runs through 2027 with a parallel quantum-resistant trust store and mandatory certificate transparency, while traditional certificates remain as a safety net during the transition.