Service / PQC & Quantum Migration

Crypto-Agility Architecture

Design systems so cryptographic algorithms, certificates, keys and protocols can change without major application rewrites.

Business context

What this capability solves

The quantum transition exposes a broader architectural weakness: cryptography is frequently hard-coded and difficult to replace. Crypto-agility makes change a managed platform capability.

EBP Integra delivery principle

Technology is implemented as an operating capability: architecture, integration, governance, assurance, people, procedures and measurable outcomes are designed together.

Deep-dive capabilities

Capability model

Modular building blocks allow the scope to start with a focused pilot and expand into an enterprise operating model.

Abstraction Layer

Separate business logic from concrete cryptographic implementations.

Profile Registry

Define approved classical, hybrid and PQC profiles by use case.

Central Policy

Control algorithms, minimum parameters, deprecation and exceptions.

Key / Certificate Agility

Support rotation, multiple certificate chains and transition profiles.

Protocol Negotiation

Design safe interoperability and downgrade/fallback behavior.

Telemetry

Expose active algorithms and migration posture to central governance.

Reference architecture

How the capability fits together

Final topology, control placement and deployment model are validated during discovery and detailed design.

Inventory & Evidence

Assets, algorithms, protocols, keys, certificates, libraries, firmware, owners and dependency graph.

Risk & Governance

Data lifetime, HNDL/TNFL exposure, criticality, migration difficulty, target profiles and exception authority.

Migration Engineering

Hybrid algorithms, PKI/HSM/KMS, protocols, applications, devices, interoperability and test environments.

Continuous Crypto-Agility

Rescans, posture dashboard, key rotation, retirement, vendor tracking, evidence and assurance.

Controls & governance

Approved cryptographic profile registry
Hybrid-first transition where compatibility requires it
No untested algorithm replacement in production
Key/certificate lifecycle and fallback controls
Vendor and firmware dependency tracking
Independent test evidence for critical systems
Exception ownership and retirement dates

Priority use cases

Modern application platform
API gateway
PKI modernization
Secure communications
IoT fleet
Cloud crypto services

Key deliverables

Target crypto architecture
Approved profiles
Abstraction patterns
Fallback policy
Telemetry design
Migration standards

Integration considerations

CMDB/asset inventory
PKI/HSM/KMS
Network/security platforms
Application/CI-CD dependencies
Cloud and SaaS configuration
IoT/OT device inventory
GRC/remediation workflow

Implementation

Phased delivery

Each phase ends with evidence, acceptance criteria and a decision gate before broader scale-out.

1. DiscoverEstablish authoritative crypto inventory and ownership.

2. PrioritizeRisk-rank exposure using data lifetime, criticality and migration effort.

3. PilotValidate target/hybrid profiles and interoperability in controlled environments.

4. MigrateExecute waves, rekey, retire legacy, rescan and maintain evidence.

Outcome and KPI framework

Hard-coded crypto reductionProfile complianceRotation timeDeprecated algorithm usageFallback exceptions