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Software engineering · supporting service
Secure application development with post-quantum readiness
Build or improve web applications and APIs with agreed security requirements, documented cryptographic dependencies, and a practical path for future post-quantum migration.
Application engineering with readiness planning. PQC integration remains assessment or laboratory-prototype work unless specific implementation evidence supports a stronger claim.
New applications and existing systems
Improve an existing application
Review selected functionality, security requirements, and cryptographic dependencies before agreeing improvements.
What you receive
- Agreed requirements, a threat model, and documented architecture decisions.
- Application code and tests for the agreed functionality and security requirements.
- A scoped record of cryptographic dependencies, providers, and evidence gaps.
- Compatibility constraints and a prioritized post-quantum readiness backlog.
- Handover documentation, with deployment and maintenance included only where agreed.
What post-quantum readiness means
Readiness means understanding cryptographic dependencies, vendor constraints, and how supported components could be replaced as technologies evolve. It does not mean PQC is deployed throughout the application or that the application is universally quantum-safe. Ordinary application engineering does not require a PQC prototype.
From scope to handover
- 01
Scope
Agree objectives, system ownership, authorized access, evidence handling, and acceptance criteria.
- 02
Design
Document trust boundaries, security requirements, cryptographic dependencies, and platform constraints.
- 03
Build and verify
Implement the agreed functionality and test it against the defined requirements.
- 04
Handover
Deliver code, findings, documentation, and the readiness backlog. Agree any deployment or ongoing work separately.
Optional: a bounded PQC laboratory prototype
Where established libraries, platforms, and protocols support the selected use case, evaluate a specific integration in a safe test environment. Record the applicable standard, implementation and evidence level, environment, compatibility and performance results, limitations, and review date. Evolext does not create custom cryptographic primitives.
Standards and evidence context
NIST FIPS 203, 204, and 205
ML-KEM specifies key encapsulation; ML-DSA and SLH-DSA specify digital signatures. Reference only the standard relevant to the selected integration. Algorithm standards do not establish application security or certification.
NIST CSWP 39upd1 — Crypto Agility
Final guidance for planning replaceable cryptographic dependencies and operational transitions. Application readiness remains limited by platform support and the evidence available.
References reviewed: 12 October 2026. Platform support is checked for each engagement.
Scope and limitations
- No universal security guarantee, compliance certification, or managed security monitoring.
- Third-party cryptography remains subject to provider capabilities and documented responsibilities.
- A laboratory prototype is not evidence of production readiness. Deployment requires separate compatibility, operational, and security decisions.
Common questions
Can I commission application development without PQC integration?
Yes. Agree the application scope first; document relevant cryptographic dependencies and future constraints without requiring a prototype.
How is this different from PQC migration?
This service builds or improves application functionality. The migration service evaluates a selected cryptographic transition in an existing system.
What if a provider does not support the intended integration?
Record the dependency, vendor questions, and a readiness backlog. A production integration is not promised where support is unavailable.
What should I share in an inquiry?
A high-level description of your application, whether it is new or existing, and the goal. Do not submit credentials, code, or confidential architecture details.