Inventory cryptography, plan post-quantum migration, assess QKD fit, and produce reviewable quantum-safe evidence for regulated systems.
Illustrative service visualFIG 01 · QUANTUM-SAFE READINESS — Cryptographic inventory, PQC decisions, specialized QKD boundaries, vendor readiness, pilot status, rollback planning, and review evidence in one programme.
Wave-based
Migration
CBOM + roadmap
Artifacts
PQC readiness
Focus
Concept visualizationQuantum-safe readiness
Quantum-safe security work connects cryptographic inventory, PQC algorithm choices, QKD boundary assessment, vendor readiness, policy gates, and audit evidence.
Post-Quantum Security reference path
Scope modelEstate and dependency evidence
Layer 01
Decision and policy control plane
Layer 02
Interoperability and pilot environments
Layer 03
Lifecycle evidence and operations
Layer 04
Acceptance
Inventory coverage is measurable
Acceptance
Every priority has a traceable rationale
Acceptance
Pilot evidence is reproducible
Acceptance
Rollback and residual risk are exercised
The standards now exist, but a safe migration still depends on knowing where public-key cryptography is used, how long protected data must remain confidential, which vendors control each dependency, and how a change can be tested and reversed. This service treats PQC as security engineering and keeps it separate from quantum-computing research or QKD infrastructure.
P01
TLS termination, VPNs, PKI, code signing, firmware, identities, backups, libraries, appliances, SaaS products, and partner interfaces may each depend on different algorithms and owners.
Decision question
Can every material use of quantum-vulnerable public-key cryptography be tied to a system, protocol, owner, vendor, data class, and replacement path?
P02
A system with long-lived confidential data or long-lived signing trust may need action before a short-retention workload, even when both use the same algorithm today.
Decision question
Which records, credentials, signatures, and update paths remain valuable or trusted long enough to justify earlier migration?
P03
Key and signature sizes, handshake behavior, certificate chains, hardware modules, middleboxes, and vendor implementations can break a theoretically correct design.
Decision question
Has the proposed change been measured across the real clients, servers, devices, protocols, trust stores, and constrained links in scope?
P04
A migration without version identity, staged cohorts, compatibility gates, monitoring, revocation, and rollback can turn a security improvement into an availability incident.
Decision question
Can the team pause, isolate, reverse, and explain each migration step without losing trust continuity or evidence?
The first decision is not which post-quantum algorithm to deploy, but which information and trust relationships would remain exposed for the longest time. Cryptographic discovery connects protocols, certificates, keys, signing paths, firmware, libraries, appliances, and suppliers to the systems they protect, the owners who can change them, and the gaps that still require investigation.
That evidence supports a sequence based on confidentiality lifetime, signature lifetime, service criticality, replacement cycle, vendor readiness, and validation needs. Current standards guide the candidate mechanisms, while real clients, middleboxes, hardware modules, constrained devices, and partner interfaces determine whether a bounded trust boundary is suitable for pilot work.
Post-Quantum Security & Crypto-Agility is delivered as inspectable engineering work. Each package states what enters the process, what leaves it, and what the evidence does not prove.
Build a cryptographic bill of materials across applications, infrastructure, devices, data flows, certificates, keys, protocols, libraries, signing systems, and vendor-managed services.
Score dependencies by data lifetime, signature lifetime, exposure, criticality, replacement cycle, vendor readiness, validation needs, and operational complexity, then map them to current NIST PQC standards and applicable policy.
Implement a bounded pilot for one complete trust boundary, measure interoperability and resource effects, exercise certificate or key lifecycle behavior, and retain reproducible test evidence.
Define algorithm and parameter ownership, vendor evidence, release gates, observability, exception handling, revocation, rollback, and periodic inventory refresh so later transitions are less disruptive.
This is a scoping architecture, not a claim that every product or environment uses the same stack. Interfaces and owners are confirmed against the actual deployment.
01
Layer 01
Applications, services, endpoints, devices, trust stores, certificates, keys, algorithms, data classes, and vendors are connected in a versioned inventory.
Typical elements
CBOM · certificate discovery · SBOM linkage · data-flow map · vendor register
02
Layer 02
Approved algorithms, allowed hybrid patterns, exceptions, owners, validation status, data-lifetime priorities, and migration gates are managed as reviewable decisions.
Typical elements
Algorithm register · policy-as-code inputs · exception expiry · approval record
03
Layer 03
Representative clients, servers, HSMs, devices, network paths, protocols, and vendor products are exercised before production cutover.
Typical elements
TLS or IKE lab · PKI test hierarchy · signing pipeline · constrained-device testbed
04
Layer 04
Release identity, installation proof, performance, failures, revocation, vendor status, incidents, rollback, and residual risk remain linked throughout migration.
Typical elements
Campaign record · telemetry · key and certificate events · rollback receipt · audit pack
The migration architecture joins the cryptographic inventory to algorithm decisions, exceptions, test environments, and release evidence. A pilot carries exact versions, parameters, topology, measurements, defects, and compatibility limits, then exercises certificate or key lifecycle behavior under the same configuration proposed for a staged cohort.
Handover defines inventory refresh, supplier evidence, exception expiry, approval, observability, revocation, pause, and rollback responsibilities. The result is a governed migration path whose unknowns remain visible; it is not a declaration that the wider estate, a cryptographic module, or a production service has been certified or fully transitioned.
These profiles show how the service changes by operating context. They are examples for scoping—not customer case studies or pre-approved outcomes.
U01
A bounded internal or partner-facing service tests ML-KEM or a standards-aligned hybrid exchange with the actual certificate, proxy, client, observability, and recovery chain.
U02
A device or software programme examines signature lifetime, boot-chain support, package size, verification cost, trust-anchor rotation, and recovery across fielded versions.
U03
A critical supplier surface is assessed through contract evidence, architecture dependencies, supported algorithms, planned dates, validation posture, and exit alternatives.
A detailed page should make the boundary as understandable as the capability. Final commitments still live in the signed statement of work.
Included in this service pattern
Not implied by this page
A01
The CBOM reports systems reviewed, discovery methods, confirmed dependencies, owners, unknowns, and an explicit plan for unresolved coverage.
A02
Data lifetime, trust lifetime, exposure, criticality, vendor status, standards, validation, and replacement constraints are visible in the decision record.
A03
A reviewer can identify versions, algorithms, parameters, topology, test data, environment, pass/fail criteria, measurements, defects, and limitations.
A04
The pilot demonstrates a monitored pause or reversal path and records what remains exposed, deferred, vendor-blocked, or outside scope.
Discovery questions
References shape requirements and review questions. Inclusion does not imply certification, endorsement, partnership, or approval by the publisher.
Each artifact has an owner, source context, review state, and a defined role in the next decision or release gate.
Engagement artifacts
05 records per engagement
Build a practical PQC migration programme with inventory, evidence, and governance from day one.
