Comparison
Build vs. buy: post-quantum security
A factual comparison of building post-quantum cryptography in-house versus adopting a dedicated platform. No vendor claims are invented; verify all figures against primary sources.
- Entity
- HEOSSI (PTE.) LTD.
| Dimension | Build in-house | Adopt QNSI |
|---|---|---|
| NIST conformance evidence | Must produce and maintain | Published (noble 435/435, liboqs 240/240) |
| HSM integration | Custom PKCS#11 per vendor | BYOHSM connector (PKCS#11 or REST) |
| Compliance mappings | Manual control mapping | Pre-mapped to ISO 27001, 42001, 19790 |
| Maintenance burden | Ongoing algorithm + library upkeep | Managed updates and conformance refresh |
| Time to first PQC workload | Months to years | Days to weeks (subject to qualification) |
| Cost model | Engineering + HSM + audit | Subscription + qualification |
This comparison is informational. Actual costs, timelines, and suitability depend on your environment. Contact HEOSSI for a qualified assessment.