Post-Quantum Readiness
Post-Quantum Cryptography Readiness: A Practical Roadmap for Security Teams
A practical 30/60/90-day PQC readiness roadmap for security leaders. Covers crypto inventory, risk assessment, vendor engagement, compliance mapping, and board reporting.
Post-Quantum Cryptography Readiness: A Practical Roadmap for Security Teams
The question has shifted. Two years ago, security leaders asked "Is quantum computing really a threat to our cryptography?" Today, the question is "How fast can we inventory our cryptographic assets and build a migration plan?"
NIST finalized its post-quantum cryptography standards in 2024. The White House issued NSM-10 mandating that federal agencies inventory cryptographic systems. The EU expects member states to begin PQC transitions by December 2026. Cyber insurers are starting to ask about quantum readiness in renewal questionnaires.
Post-quantum cryptography readiness is no longer a research topic. It is an operational program that security teams need to start now. Here is a practical 30/60/90-day roadmap.
Phase 1: Discovery and Baseline (Days 1–30)
Week 1-2: External Cryptographic Posture Scan
Start with what is visible. Run an external cryptographic posture assessment on every domain your organization owns. This surfaces every publicly visible TLS certificate, DNS record, HTTP security header, and protocol configuration — without touching internal systems.
External-only assessment requires zero infrastructure changes, zero agent deployments, and zero credential sharing. You can have a baseline inventory in under an hour.
Week 3: Internal Crypto Inventory Planning
With your external posture mapped, plan internal discovery: identify systems handling long-lived sensitive data, inventory certificate lifecycle management tools, map vendor-managed cryptographic dependencies.
Week 4: Risk Classification
Assign a risk tier to every cryptographic asset:
- Critical: Protects data with confidentiality lifetime >7 years; relies on RSA-2048 or ECC P-256; exposed to public internet
- High: Protects regulated data; managed by vendor with unknown PQC roadmap; certificate expiry within 6 months
- Medium: Internal-only; behind VPN or zero-trust access; modern algorithms with adequate key sizes
- Low: Ephemeral; short-lived data; uses AES-256 or SHA-384+ for primary security
Phase 2: Prioritization and Planning (Days 31–60)
Week 5-6: Migration Dependency Mapping
PQC migration is not an independent per-asset upgrade. Cryptographic assets are coupled — shared libraries, shared certificates, vendor-controlled endpoints. Build a dependency map showing which assets share cryptographic components, which teams own each asset, and which third parties control migration timelines.
Week 7: Vendor PQC Questionnaire Campaign
Send a structured PQC readiness questionnaire to every vendor whose cryptographic posture affects your organization. Ask about their PQC roadmap, NIST algorithm support, hybrid certificate plans, CBOM availability, and compliance alignment.
Week 8: Compliance Gap Analysis
Map your cryptographic inventory against regulatory frameworks: NSM-10, CNSA 2.0, PCI DSS 4.0, DORA, HIPAA. Identify which findings map to which compliance requirements. This becomes your compliance evidence package.
Phase 3: Executive Reporting and Roadmap Delivery (Days 61–90)
Week 9-10: Executive Readiness Report
Translate technical findings into leadership-ready documentation: one-page executive summary, risk heat map, resource estimate, regulatory alignment. CipherReady's executive PDF report is built for this purpose.
Week 11-12: 90-Day Migration Roadmap Delivery
Deliver a concrete, actionable 90-day plan with monthly milestones for inventory completion, dependency mapping, vendor engagement, and monitoring setup.
Post-Roadmap: Continuous Monitoring
PQC readiness is not a one-time assessment. Schedule recurring scans — monthly for high-priority domains, quarterly for others. Track readiness scores over time and use trend data to show measurable progress toward quantum-safe operations.
FAQ
Q: How long does the full 90-day roadmap take to execute? A: The 90-day timeline is realistic for organizations starting from scratch. Organizations with existing certificate lifecycle management and asset inventory may move faster.
Q: What if we cannot complete internal discovery in 30 days? A: Start with external discovery (it takes hours, not weeks) and prioritize the highest-risk internal systems. Full internal discovery can extend beyond 30 days for complex environments.
Q: Do we need a dedicated PQC team? A: Not initially. A cross-functional working group with representatives from security, IT, compliance, and vendor management is sufficient for the discovery and planning phases.
Q: How do we measure progress? A: Track your readiness score over time, count of inventoried cryptographic assets, percentage of vendors with completed PQC questionnaires, and number of systems migrated to PQC-ready configurations.
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