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Authoritative reference for NIST post-quantum cryptography. FIPS 203/204/205 algorithms, CNSA 2.0 requirements, Federal PKI guidance, and SP 800-series compliance frameworks.
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CNSA 2.0 Algorithm Quick Reference
NSA Commercial National Security Algorithm Suite 2.0 — Required for National Security Systems (NSS) by 2030.
Key Encapsulation (FIPS 203)
- ML-KEM-768 — CNSA 2.0 minimum, NIST Level 3
- ML-KEM-1024 — NIST Level 5, highest security
- ML-KEM-512 not approved for NSS
Digital Signatures (FIPS 204)
- ML-DSA-65 — CNSA 2.0 minimum, NIST Level 3
- ML-DSA-87 — NIST Level 5, highest security
- ML-DSA-44 not approved for NSS
Hash-Based Signatures (FIPS 205)
- SLH-DSA-SHA2-128s — CNSA 2.0 approved
- SLH-DSA-SHAKE-128s — CNSA 2.0 approved
- Conservative security, larger signatures