Red Hat Enterprise Linux 10.0 shipped with OpenSSL 3.2 and supports hybrid post-quantum key exchange in TLS and ML-DSA signatures. CentOS 10 Stream, which will become RHEL 10.1, has already upgraded to OpenSSL 3.5. Learn how OpenSSL 3's provider architecture allowed Red Hat to bring post-quantum cryptography to its operating system quickly and migrate to OpenSSL's own implementation later on. I'll discuss the problems we found along the way and the use cases OpenSSL's support for post-quantum cryptography unlocks for us. 📚 Slides & materials: Presentation: This session was recorded at the OpenSSL Conference 2025 in Prague, the annual global meetup of cryptographers, open-source developers, security engineers, and practitioners working with TLS, PKI, and secure communications. 📍 Event: OpenSSL Conference 2025, Prague 📅 Date: October 7-9 2025 🔗 More from OpenSSL Conference 2025: Playlist: Website: 🔍 Find more about organisers: 🙋 Join us at: 🤝 Stay connected: OpenSSL GitHub: LinkedIn: Twitter/X: Facebook: Blog: © 2025 OpenSSL Corporation. #OpenSSL #pqc #Cryptography