PQC & Quantum Migration • PQ-06
PKI Modernization
Rebuild the certificate authority estate so it can issue what comes next.
Scope
What the engagement covers.
Legacy PKI is often manually operated, poorly inventoried and unable to support new algorithms or short lifetimes. Modernization makes issuance automated, agile and auditable.
Included capabilities
- CA hierarchy redesign with quantum-ready root and issuing structure
- Certificate lifecycle automation and short-lifetime issuance
- HSM estate review, key ceremony design and custody procedures
- Trust store management across servers, devices and applications
- Certificate policy and certification practice statement refresh
Outputs and deliverables
- Target CA hierarchy and algorithm profile design
- Key ceremony scripts and custody procedures
- Certificate lifecycle automation implementation
- Refreshed certificate policy and practice statement
Workflow
How it is delivered, step by step.
Each step has an owner, an entry condition and an artefact that has to exist before the next step begins.
01ReviewCurrent hierarchy, issuance practice, HSM estate and trust stores.
02DesignTarget hierarchy, algorithm profiles and automation architecture.
03BuildNew CA infrastructure, ceremonies and issuance automation.
04MigratePhased re-issuance and trust store distribution with overlap period.
05OperateRunbooks, monitoring, renewal automation and audit evidence.
Use cases
Where this is typically applied.
Manual certificate management causing repeated outages
Device fleets requiring automated issuance at scale
Delivery model
The operating pattern for PQC & Quantum Migration.
The same delivery discipline applies across every capability in this line, so combined engagements stay coherent.
Discover
Find every certificate, key, library, protocol and hardware dependency.
Prioritize
Rank by harvest-now-decrypt-later exposure, data life and migration effort.
Design
Hybrid profiles, agility interfaces, PKI and key lifecycle target state.
Migrate
Waves, pilots, fallback paths, exception handling and change control.
Operate
Posture monitoring, algorithm governance, revalidation and reporting.
Integration
- Certificate lifecycle management and PKI platforms already in place.
- HSM estate, key management services and cloud KMS.
- CI/CD pipelines, so crypto inventory stays current as code ships.
- Asset and configuration management for device and endpoint coverage.
Engagement approach
Most clients begin with discovery and risk mapping as a contained first phase, because nothing else can be planned credibly without an inventory. Migration then runs in waves aligned to certificate renewal and platform refresh cycles rather than as a separate programme.
Related
Other capabilities in PQC & Quantum Migration.
PQ-01
Cryptographic Discovery
You cannot migrate cryptography you cannot find.
PQ-02CBOM / SBOM Enrichment
Extend the software bill of materials until it answers cryptographic questions.
PQ-03HNDL / TNFL Risk Assessment
Rank migration by the data that is already being collected against you.
PQ-04Crypto-Agility Architecture
Design so the next algorithm change is a configuration decision, not a rebuild.
PQ-05Hybrid PQC Migration
Run classical and post-quantum together until the ecosystem is ready to drop one.
PQ-07Digital Signature Migration
Protect signatures that must remain verifiable for decades.
PQ-08Secure Communication Migration
Make the channels quantum-safe without breaking the people who use them.
PQ-09IoT / OT PQC Migration
The hardest estate: constrained devices with long lives and no easy update path.
PQ-10PQC Test Lab & Validation
A place to break things before production does it for you.
PQ-11Governance & Reporting
Keep a multi-year cryptographic programme honest between milestones.
PQ-12Training & Capability Transfer
Leave the client able to run the programme without the consultant.