Replace RSA in Production

Without downtime. Without rebuilding.

RSA-2048 and ECC P-256 will be broken by quantum computers. You know this. Here's how to replace them today — in your running production systems — without touching infrastructure.

# Before (vulnerable)
openssl rsautl -encrypt -pubin -inkey rsa.pub

# After (quantum-safe)
curl -X POST https://api.h33.ai/v1/encrypt \
  -d '{"data": payload, "policy": "pq_replace_rsa"}'

No crypto expertise required · No infrastructure changes · No engine selection

What Gets Replaced

✓RSA key exchange → ML-KEM (FIPS 203) — same handshake, quantum-safe
✓RSA/ECDSA signatures → ML-DSA (FIPS 204) — same verification, quantum-safe
✓RSA certificates → H33 handles PQ signing, no cert re-issue
✓ECDH key agreement → ML-KEM encapsulation via API
✓Your application code → does not change

What Stays the Same

✓AES-256 encryption — already quantum-resistant
✓SHA-256/SHA-3 hashing — already quantum-resistant
✓Your databases, APIs, and business logic — untouched
✓Your network architecture — same servers, same routing
✓Your deployment pipeline — same CI/CD, same containers

Production Numbers

✓Latency: 42µs per authentication (1,345µs per 32-user batch)
✓Throughput: 1,667,875 auth/sec sustained on production hardware
✓Availability: zero downtime during migration — API runs alongside existing stack
✓Rollback: instant — stop calling the API, classical stack still runs
✓Verification: every call returns H33-74 proof of PQ compliance

Every API call is NIST FIPS 203/204 compliant. Three PQ signature families active. Independently verifiable attestation on every response.

Get API Key — Make Your First Verified Call →

Your RSA replacement ships in your next deploy. Not your next rewrite.

Sandbox free. No credit card. Full NIST FIPS 203/204 compliance from your first call.

Replace RSA in Production

What Gets Replaced

What Stays the Same

Production Numbers

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