PQC & Quantum Migration • PQ-08
Secure Communication Migration
Make the channels quantum-safe without breaking the people who use them.
Scope
What the engagement covers.
Session-based channels are the most exposed to harvest-now-decrypt-later. This service migrates key establishment for tunnels, messaging and real-time communication with measured performance impact.
Included capabilities
- Quantum-safe key establishment for VPN, TLS and secure tunnels
- Messaging and real-time communication channel migration
- Performance and handshake overhead measurement under production load
- Constrained-link handling for satellite, cellular and field connectivity
- Counterparty coordination for inter-organization channels
Outputs and deliverables
- Channel inventory with counterparty mapping
- Performance benchmark results per profile
- Migration and cutover plan with rollback
- Post-migration negotiation verification report
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.
01InventoryChannels, endpoints, counterparties and cryptographic profiles.
02BenchMeasure handshake cost and throughput impact per candidate profile.
03CoordinateAgree profiles and cutover windows with counterparties.
04Cut overWave migration with monitoring and immediate rollback capability.
05VerifyConfirm negotiated profiles in production and close exceptions.
Use cases
Where this is typically applied.
Financial messaging channels with external counterparties
Field operations over constrained satellite or cellular links
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-06PKI Modernization
Rebuild the certificate authority estate so it can issue what comes next.
PQ-07Digital Signature Migration
Protect signatures that must remain verifiable for decades.
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.