Topic starter
22/06/2026 9:57 am
TL;DR: Post-quantum cryptography migration is harder than the earlier RSA to ECC transition because it brings larger keys, hybrid periods, PKI disruption, and regulatory pressure, according to Keyfactor. The real issue is not algorithm choice alone but whether organisations can govern cryptographic change without losing trust, visibility, or operational control.
Editorial analysis by NHI Mgmt Group, based on content published by Keyfactor: “How to Build a PQC Migration Roadmap Step-by-Step Guide”.
Key questions
Q: What should teams do first when planning PQC migration?
A: Start by inventorying every place public-key cryptography is used, including TLS, service-to-service identity, code signing, device enrollment, and signature-based authentication.
Q: Why do PQC migrations create more operational risk than earlier cryptographic transitions?
A: PQC affects more than algorithm choice.
A: Without dependency testing, organisations can break authentication, signing, device trust, and application interoperability.
Practitioner guidance
- Build a complete cryptographic inventory Catalog every certificate, key, protocol, cryptographic library, HSM, workload, and device so you can see where PQC change is required before deadlines compress.
- Classify assets by quantum exposure Prioritise long-lived confidential data, long-lifecycle systems, and hard-to-replace infrastructure first, because those carry the most urgent migration risk.
- Prepare PKI for coexistence Test classical, hybrid, and post-quantum certificate paths in non-production, then update trust anchors and validation chains on a coordinated schedule.
Bottom line: PQC migration is an identity and trust lifecycle problem, not just a cryptographic algorithm swap.
Explore further
View Full Forum → | NHI Foundation Course → | Our Services → | Read the full analysis →
22/06/2026 10:38 am
Cryptographic agility has become an identity governance requirement, not a technical convenience. The article shows that PQC migration touches certificates, keys, validation, and partner interoperability at once, which makes it a lifecycle problem rather than a one-time upgrade. That means IAM and PKI teams must govern change across the full trust chain, not just approve new algorithms. Practitioners should treat cryptographic change as a controlled identity programme.
A question worth separating out:
Q: Why do hybrid cryptography deployments matter during PQC transition?
A: Hybrid cryptography matters because it lets organisations introduce quantum-resistant protection without breaking interoperability in existing systems. It provides a compatibility bridge while teams validate applications, certificates, and cloud environments. Without that bridge, migration pressure can force either delay or risky cutovers that leave gaps in operational continuity.
👉 Read our full editorial: PQC migration roadmaps expose the limits of cryptographic agility