Post-Quantum Cryptography
Post-Quantum Cryptography & Crypto-Agility
Protect long-lived secrets against the quantum threat — starting now, not in 2030.
A future quantum computer will break the public-key cryptography (RSA, Diffie-Hellman, elliptic curve) that secures the internet today. The danger is already here: adversaries can capture encrypted data now and decrypt it later. We help you migrate to quantum-safe cryptography with a clear, low-risk roadmap.
The threat is not "wait until quantum computers exist." Under the "Harvest Now, Decrypt Later" model, well-resourced adversaries are believed to be storing encrypted traffic and data today to decrypt once a capable quantum computer arrives. Anything that must stay secret for years — credentials, records, proprietary content — is already exposed. In 2024, NIST finalized the first post-quantum standards: ML-KEM (FIPS 203) for key exchange, ML-DSA (FIPS 204) and SLH-DSA (FIPS 205) for signatures. Regulators are setting deadlines (RSA/ECC deprecated around 2030, disallowed by 2035; national-security systems sooner). Migrating a real estate takes years, so the work starts now. We do it the safe way: discover where cryptography lives, prioritize by risk, deploy hybrid (classical + post-quantum) so you are protected without breaking compatibility, and re-architect for crypto-agility so algorithms can be rotated cheaply as standards keep evolving.
What you get- Long-lived data protected against "harvest now, decrypt later"
- A prioritized, board-ready migration roadmap with visible progress
- Zero-downtime transition via hybrid deployment
- Crypto-agility so the next algorithm change is routine, not a project
What We Build
The capabilities behind this solution
Each engagement is assembled from these building blocks, scoped to your platform, your risk, and your regulatory context.
Quantum Risk Assessment & Crypto Discovery
We build a Cryptographic Bill of Materials (CBOM) — an inventory of every place crypto is used across TLS, VPNs, SSH, PKI, code signing, databases, HSM/KMS, and third parties — then score each by "Harvest Now, Decrypt Later" risk. You cannot migrate what you cannot see.
Crypto-Agility Architecture
We re-architect systems so algorithms sit behind an abstraction and can be swapped without re-engineering. Since the standards will keep evolving (HQC, FN-DSA), the durable value is the ability to rotate algorithms cheaply, forever.
Hybrid Migration Engineering
We deploy classical + post-quantum together (e.g. X25519 + ML-KEM) so connections stay secure if either holds — gaining quantum resistance while preserving compatibility and FIPS 140-3 alignment. Key exchange first, to stop HNDL immediately.
PKI & Code-Signing Modernization
We migrate certificate authorities, code signing, and document signing to ML-DSA / SLH-DSA, protecting long-lived trust anchors and firmware against future forgery.
Compliance & Governance
We align your roadmap to CNSA 2.0, NIST IR 8547, and FIPS 140-3, with executive reporting and audit-ready evidence of progress.
Managed Crypto-Agility
Ongoing monitoring of your cryptographic posture and algorithm lifecycle as standards change — so you stay compliant and quantum-safe without a second big migration.
How We Deliver
A scoped, low-risk path to production
No big-bang cutovers. We move in deliberate phases, with rollback-safe checkpoints and clear ownership at every step.
- Discover & inventory all cryptography (build the CBOM)
- Assess and prioritize assets by data lifetime and exposure
- Pilot hybrid key exchange on the highest-risk paths
- Migrate signatures/PKI, then operate continuous crypto-agility
Outcomes
What this changes for you
- Long-lived data protected against "harvest now, decrypt later"
- A prioritized, board-ready migration roadmap with visible progress
- Zero-downtime transition via hybrid deployment
- Crypto-agility so the next algorithm change is routine, not a project
Technology & Standards
What we typically work with
Final tooling is selected during discovery to fit your existing estate, compliance posture, and team.
FAQ
Common questions
Quantum computers cannot break encryption yet — why act now?
Because of "Harvest Now, Decrypt Later": data captured today can be decrypted once quantum capability arrives. Any secret that must stay confidential past ~2030 is already at risk, and migrating a large estate takes years. Starting now is the only way to be ready in time.
Will migrating break compatibility with existing systems?
No. We deploy in hybrid mode — classical and post-quantum algorithms together — so connections remain secure and compatible while you gain quantum resistance. The transition is incremental and zero-downtime.
Which algorithms do you use?
The NIST-standardized ones: ML-KEM (FIPS 203) for key exchange, ML-DSA (FIPS 204) and SLH-DSA (FIPS 205) for signatures, with hybrid classical pairings — and an architecture ready to adopt follow-ons like HQC and FN-DSA.
What is crypto-agility and why does it matter?
It is the ability to change cryptographic algorithms without re-engineering your systems. Because PQC standards will keep evolving, crypto-agility turns every future change into a configuration update rather than another multi-year migration.
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