On December 19, 2025, NIST released the final version of Cybersecurity White Paper 39, which focuses on achieving “crypto agility” to prepare for quantum computing threats. This standard outlines how organizations can effectively replace current encryption methods with new, quantum-safe algorithms across their software and hardware. The goal is to ensure systems remain secure and operational during the transition, addressing the significant challenges of updating infrastructure without causing disruptions.
Developed through extensive public feedback and industry workshops, this document serves as a practical guide for IT leaders planning their move toward post-quantum cryptography. It provides specific strategies and metrics tailored to different sectors to help implement these security upgrades smoothly. While the guidelines are now available, NIST views this as a starting point for an ongoing effort to maintain cybersecurity against future quantum advancements.
Keywords: crypto agility, post-quantum cryptography, cryptographic algorithms
