TonyBai
Jun 10, 2026 · Information Security
Is RSA Dead? How Let’s Encrypt’s Merkle Tree Certificates Aim to Secure the Post‑Quantum Web
The article analyzes the looming quantum threat to RSA/ECDSA‑based Web PKI, explains why naïvely swapping to post‑quantum signatures would bloat TLS handshakes, and details Let’s Encrypt’s Merkle Tree Certificate (MTC) approach that preserves authentication size while embedding certificate transparency.
Let’s EncryptMerkle Tree CertificatesTLS
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