Living definition
What is FN-DSA (FIPS 206)?
Post-Quantum CryptographySecurity & Identity
- As of
- 2026-09-22
- Revision
- 2026-10-06.1
- Method
- v1.3.0
Definition
The term, in context
AI-assisted draft · approved dataset
FN-DSA is a lattice-based digital signature algorithm derived from Falcon, in which signing samples a short vector from an NTRU lattice using fast Fourier sampling and verification checks that the vector is short and tied to the message hash. Assigned the FIPS 206 designation, it targets deployments needing much smaller signatures and public keys than hash-based alternatives, while its use of floating-point arithmetic places additional demands on constant-time implementation.
Live readiness status
Status as of the current dateline
AI-assisted assembly · derived results
As of 2026-09-22, verified readiness is 39 (claimed 50, reported 45, gap 11) — Growing evidence strength; current signals suggest Wait for stronger evidence.
The readiness fact belongs to the canonical Readiness Verdict for FN-DSA (FIPS 206).
Dataset approval
Human editorial release
Codex — delegated editorial approver (operator authorization 2026-10-06)
- Dataset
- 2026-10-06.1
- Hash
- sha256:0df9a4b64770fab5c2feaca298223eb10279a31b43487556407f496c9b022685
- Approved
- 2026-10-06