Google's Chrome team is rolling out a program to implement quantum-safe HTTPS certificates using Merkle Tree Certificates (MTCs), which increase efficiency and transparency without compromising security. MTCs replace traditional certificate chains, reducing bandwidth usage while adopting post-quantum cryptography. The rollout has three phases: testing MTCs with existing certificates, inviting log operators for public MTCs, and establishing a new root store for MTCs. This initiative aims to ensure a robust, efficient, and scalable approach to enhanced web security amid evolving quantum threats.
https://security.googleblog.com/2026/02/cultivating-robust-and-efficient.html