BFV with N=32768 polynomial degree. Exceeds AES-256 equivalent difficulty under quantum attack. For government, defense, SCIF environments, and data that must remain secure for decades.
The same API. The same pipeline. Dramatically higher security margin.
| Parameter | H33-128 | H33-256 |
|---|---|---|
| Polynomial degree (N) | 4,096 | 32,768 |
| Ciphertext modulus (Q) | 56-bit | 237-bit |
| Plaintext modulus (t) | 65,537 | 65,537 |
| SIMD slots | 32 | 256 |
| Security level | 128-bit (NIST L1) | 256-bit (NIST L5) |
| Auth latency (single) | 1.36ms | 5.98ms |
| Dilithium variant | ML-DSA-65 | ML-DSA-87 |
| Quantum resistance | AES-128 equiv | AES-256 equiv |
The quantum threat is not hypothetical. It is a matter of when, not if.
curl -X POST https://api.h33.ai/v1/fhe/h33-256/keygen \ -H "Authorization: Bearer $H33_API_KEY" \ -H "Content-Type: application/json" \ -d '{"security_level": 256}'
curl -X POST https://api.h33.ai/v1/fhe/h33-256/dilithium/encrypt \ -H "Authorization: Bearer $H33_API_KEY" \ -H "Content-Type: application/json" \ -d '{"plaintext": [1,0,1,...], "public_key": "..."}'
curl -X POST https://api.h33.ai/v1/fhe/h33-256/3key/biometric-match \ -H "Authorization: Bearer $H33_API_KEY" \ -H "Content-Type: application/json" \ -d '{"ciphertext_a": "...", "ciphertext_b": "...", "threshold": 0.85}'
H33-256's N=32,768 ring dimension provides 4× more computational headroom than H33-128. Noise Pilot leverages this margin to deliver deeper circuits and longer-lived ciphertexts.
H33-256 meets the highest bar for cryptographic compliance in government and enterprise deployments.
Maximum security for the environments where compromise is not an option.
N=32768, which exceeds the AES-256 equivalent difficulty under quantum attack. NIST Level 5 means an attacker needs at least 2256 operations to break the encryption, even with a large-scale quantum computer.N=4096 (128-bit security), optimized for throughput at ~967µs per batch. H33-256 uses N=32768 (256-bit security), optimized for maximum protection at ~5.98ms per batch. Both share the same API, the same pipeline, and the same response format.ML-DSA-87 (Dilithium Level 5) — the highest NIST post-quantum digital signature level. H33-128 uses ML-DSA-65 (Level 3). Every batch is signed and verified with the corresponding attestation tier.security_level: "h33-256" in the API call. The pipeline, endpoints, and response format are identical. No SDK changes, no key rotation, no migration.ML-KEM-1024 for key encapsulation and ML-DSA-87 for digital signatures. Full FIPS 140-3 certification is in progress. All cryptographic primitives align with the NIST PQC final standards published in 2024.256-bit post-quantum security. One API call. The same interface as H33-128.
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