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Cryptography

Crypto-Agility

Architecture and tooling that let you change cryptographic algorithms, keys and providers without rewriting applications.

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Advisory programme

The problem

The challenge

When cryptography is hard-coded throughout applications, every algorithm change — whether driven by a vulnerability, a new standard or post-quantum migration — becomes a costly, risky rewrite.

Current industry pain points

  • Algorithms hard-coded across many codebases
  • Inconsistent cryptographic libraries and configurations
  • Slow response to cryptographic vulnerabilities
  • No central policy for approved algorithms

The solution

How it works

Centralise cryptographic policy and abstract cryptographic operations behind well-defined services and libraries, so algorithms and keys can be changed through configuration and controlled rollout.

Decision flow
  1. Cryptographic policy service
  2. Crypto libraries / services
  3. Key management (KMS / HSM)
  4. Usage telemetry
  5. Progressive rollout

In detail

Inside the platform

01

Central policy

Define approved algorithms, key sizes and protocols centrally and enforce them.

02

Abstraction

Expose cryptographic operations through services and libraries rather than direct primitive use.

03

Observability

Monitor which algorithms are in use, where, and by whom.

04

Controlled change

Roll out algorithm changes progressively with fallback.

Capabilities

Key capabilities

  • Policy-driven cryptography

    Central control of approved algorithms.

  • Cryptographic services

    Encryption, signing and key operations as services.

  • Usage telemetry

    Visibility of algorithm usage across the estate.

  • Migration tooling

    Re-encryption and key rotation workflows.

Trust

Security, integration and outcomes

Security by design

  • Keys never leave KMS/HSM boundaries
  • Least-privilege key access
  • Audited cryptographic operations

Integrations

  • Cloud KMS
  • HSMs
  • Application frameworks
  • Service mesh

Business outcomes

  • Faster response to cryptographic change
  • Consistent cryptography across applications
  • A practical path to post-quantum migration

Outcomes depend on each organisation’s data, products and processes. We do not publish accuracy or ROI figures without independently verifiable evidence.

FAQ

Frequently asked questions

Is crypto-agility only about post-quantum?

No. It also enables faster response to library vulnerabilities, deprecated algorithms and changing compliance requirements.

Build crypto-agility into your architecture

Let’s discuss it. Tell us what you are working on and an engineer — not a sales script — will respond.

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