Root Causes 269: Did a Patent Dispute Nearly Derail Post Quantum Cryptography?

On July 5, 2022 NIST announced its Round 3 PQC winners. What most people don't realize is that same day, the interested parties cleared a patent dispute that had the potential to prevent several of the winning primitives from moving forward. Join us as we explain who held that patent, what the potential impediment was, and how everything was resolved.