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Building a post-quantum certificate authority with Merkle Tree Certificates

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Building a post-quantum certificate authority with Merkle Tree Certificates

Cloudflare Blog · Official source · Sep 29, 2026, 1:00 PM UTC

As post-quantum signatures threaten to inflate TLS handshakes and certificate transparency logs, Merkle Tree Certificates offer a path to compact, auditable authentication. Cloudflare’s new certificate authority will support MTC issuance at scale.