Post-quantum authentication replaces RSA, ECDSA, and ECDH in your auth stack with NIST-approved quantum-resistant algorithms. H33 delivers triple PQ signing (ML-DSA-65, FALCON-512, SLH-DSA) at 38 microseconds per authentication and 2.29 million authentications per second sustained. One REST API call. No infrastructure rebuild. No key migration. No downtime.
RSA signs your JWTs. ECDSA signs your API tokens. ECDH establishes your TLS sessions. Shor's algorithm breaks all three. The CNSA 2.0 deadline is 2027 for new systems. The harvest-now-decrypt-later window is open right now.
Every TLS 1.3 connection establishes a shared secret via ECDH key exchange. A quantum computer breaks the discrete log problem underlying ECDH, retroactively compromising every recorded TLS session. Every login, every API call, every webhook — all harvestable today.
JSON Web Tokens, OAuth 2.0 access tokens, and SAML assertions are all signed with RSA or ECDSA. Once these signatures are forgeable, any attacker can mint valid authentication tokens for any user, any scope, any service. Identity collapses.
The NSA's CNSA 2.0 mandates post-quantum cryptography for all new national security systems by 2027 and full migration by 2033. Federal contractors, financial institutions, and healthcare providers face regulatory timelines that have already started. Classical auth is a compliance liability.
H33 post-quantum authentication sits alongside your existing identity provider. One REST API call adds three independent PQ signature families to every authentication event. Your user database, session management, and IdP stay exactly where they are.
ML-DSA-65 (FIPS 204) — Lattice-based. The NIST primary standard for post-quantum digital signatures. Based on the hardness of Module-LWE. Fast signing and verification. This is the backbone of H33's auth pipeline.
FALCON-512 — NTRU lattice-based. The most compact PQ signature scheme standardized by NIST. Based on NTRU lattice assumptions, mathematically independent from ML-DSA. Compact signatures are critical for bandwidth-constrained auth scenarios (mobile, IoT, edge).
SLH-DSA (FIPS 205) — Hash-based. Stateless hash-based signatures with the most conservative security assumptions. Even if lattice-based cryptography falls to a future attack, SLH-DSA remains secure as long as hash functions are collision-resistant. This is the insurance policy.
Breaking H33 auth requires simultaneously breaking MLWE lattices, NTRU lattices, AND stateless hash functions. No known algorithm — classical or quantum — threatens all three simultaneously. This is not defense in depth. It is defense in independence.
Login, API call, token refresh, or session establishment
Encrypted biometric comparison — server never sees plaintext
Auth event fingerprinted with quantum-resistant hash function
ML-DSA-65 + FALCON-512 + SLH-DSA sign independently (38 µs)
Compressed proof returned — 32B on-chain + 42B in Cachee
H33 post-quantum authentication is not a latency tradeoff. It is faster than most classical auth systems in production, while providing quantum-resistant security that classical systems cannot match.
| Metric | H33 PQ Auth | Typical Classical Auth |
|---|---|---|
| Per-auth latency | 38 µs | 2-15 ms (RSA-2048 verify) |
| Sustained throughput | 2.29M auth/sec | 50K-200K auth/sec |
| Signature families | 3 independent | 1 (RSA or ECDSA) |
| Quantum resistance | NIST FIPS 203/204/205 | None |
| Attestation footprint | 74 bytes | N/A (no attestation) |
| Integration | 1 API call | Full key migration |
Harvest-now-decrypt-later attacks mean that every classical authentication session recorded today is retroactively compromisable. The compliance timeline reinforces what the threat model already demands.
NIST finalizes FIPS 203, 204, 205. ML-KEM, ML-DSA, and SLH-DSA published as federal standards. The post-quantum cryptographic foundation is complete.
CNSA 2.0 migration begins. NSA requires national security systems to begin post-quantum transition. Federal contractors receive compliance guidance.
New systems must be PQ-ready. CNSA 2.0 requires all new national security system deployments to use post-quantum algorithms. Classical-only deployments become non-compliant.
Full migration deadline. All existing national security systems must complete transition to post-quantum cryptography. Legacy classical auth becomes a formal compliance violation.
Harvest-now-decrypt-later is active. Adversaries recording encrypted traffic today will decrypt it when quantum hardware matures. Every classical auth session is a future liability. The time to migrate is now.
Post-quantum authentication is the use of NIST-approved post-quantum cryptographic algorithms to verify identity, establish sessions, and sign tokens. It replaces classical RSA, ECDSA, and ECDH — which are vulnerable to quantum computers running Shor's algorithm — with lattice-based (ML-DSA, ML-KEM), NTRU-based (FALCON), and hash-based (SLH-DSA) algorithms that have no known quantum attacks.
Every TLS handshake, JWT signature, OAuth token, and session cookie in production today uses RSA or ECDSA for signing and ECDH for key exchange. Shor's algorithm on a sufficiently powerful quantum computer breaks all three in polynomial time. This means every authentication session, every signed token, and every TLS connection is retroactively compromisable via harvest-now-decrypt-later attacks.
The NSA's Commercial National Security Algorithm Suite 2.0 (CNSA 2.0) requires all national security systems to begin post-quantum migration by 2025 and complete it by 2033. NIST finalized the core standards — FIPS 203 (ML-KEM), FIPS 204 (ML-DSA), and FIPS 205 (SLH-DSA) — in 2024. Federal contractors and regulated industries should treat 2027 as the practical compliance deadline.
H33 sustains 2.29 million post-quantum authentications per second on Graviton4 hardware, with a per-auth latency of 38 microseconds. Each authentication includes FHE-encrypted biometric matching, triple PQ signature verification (ML-DSA-65 + FALCON-512 + SLH-DSA), and a 74-byte attestation. This is faster than most classical auth systems in production today.
Yes. H33 post-quantum authentication integrates via a single REST API call. Your existing identity provider, session management, and user database remain unchanged. H33 adds PQ attestation as a cryptographic layer on top of your current auth flow. No infrastructure rebuild, no key migration, no downtime. A typical integration takes less than one hour.
See 2.29M post-quantum authentications per second running live. One API call. Your infrastructure. No commitment required.