Licenses

Last updated: May 22, 2026

QCrypton is proprietary software. This page details the licensing terms for the QCrypton platform and acknowledges third-party software used in its development.

1. QCrypton Platform License

The QCrypton platform, including all source code, algorithms, documentation, and associated materials, is the proprietary property of QCrypton. Use of the platform is governed by the Terms of Use and your subscription agreement.

2. Cryptographic Implementations

All cryptographic algorithms in QCrypton are implemented natively with zero external crypto dependencies. These implementations are based on the following published standards:

  • LSH-256: KS X 3262 (Korean standard)
  • HPKE: RFC 9180 — Hybrid Public Key Encryption
  • AES-256-GCM: FIPS 197 (AES) + NIST SP 800-38D (GCM)
  • SHA3-256: FIPS 202
  • ML-KEM: FIPS 203 (via HSM)
  • ML-DSA: FIPS 204 (via HSM)
  • SLH-DSA: FIPS 205 (via HSM)
  • SCIM 2.0: RFC 7644
  • Syslog: RFC 5424
  • SARIF: OASIS SARIF 2.1.0

3. Third-Party Software

QCrypton uses the following open-source libraries and frameworks:

Runtime Dependencies

  • Node.js — MIT License
  • Express — MIT License
  • PostgreSQL — PostgreSQL License
  • Stripe SDK — MIT License

Frontend

  • Inter Font Family — SIL Open Font License 1.1
  • JetBrains Mono — SIL Open Font License 1.1

4. FTQC Research Attribution

The quantum attack cost estimation engine is based on published research:

  • Gidney, C. & Ekerå, M. (2021). "How to factor 2048 bit RSA integers in 8 hours using 20 million noisy qubits." Quantum, 5, 433.
  • Grassl, M. et al. (2016). "Applying Grover's algorithm to AES." Post-Quantum Cryptography, Springer.
  • Häner, T. et al. (2020). "Improved quantum circuits for elliptic curve discrete logarithms." Quantum Computing.
  • Fowler, A. G. et al. (2012). "Surface codes: Towards practical large-scale quantum computation." Physical Review A, 86(3), 032324.

5. Trademark Notice

QCrypton, the QCrypton logo, and all related product names are trademarks of QCrypton. All other trademarks are the property of their respective owners.

6. Questions

For licensing questions, contact legal@qcryptonapp.com.