Podcast

Root Causes 611: Merkle Tree Certificates (MTCs), What and Why

Hosted by
Tim Callan
Chief Compliance Officer
Original broadcast date
May 29, 2026

There are strong reasons to believe that the architecture of PQC TLS will take the form of Merkle Tree Certificates (MTC). We are joined by post quantum cryptography expert Bas Westerbaan of Cloudflare as he explains this new PKI architecture, how it works, and why we need it. We define new concepts like landmark certificates and log mirrors and discuss what's necessary to move to this new architecture.

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