4 Qubits
No public URL · DoD · IC · Federal · Central banks

4QVault

Air-gapped cryptographic attestation for IL5/IL6, federal, and intelligence environments.

Same Decision Ledger code as Attest. Fully offline. No telemetry. SEALSQ EK chain anchor. Single-binary verifier. SBIR / SEWP / OTA path. Built for the environments where the internet doesn't go.

Aligns toNIST SP 800-53 (high)CNSSI 1253IL5 / IL6FIPS 140-3NSM-10CMMC 2.0 (L3)FedRAMP High

Air-gapped by construction

No outbound calls. No phone-home. No telemetry. Verification works against the local ledger and a SEALSQ-bound EK chain.

SEALSQ TPM/HSM-bound

Endorsement Key chain anchored on the customer's SEALSQ TPM. Attestation packets include the chip serial — physical chain of custody is provable.

Single-binary verifier

`4q attest verify packet.json --offline` — no Python runtime needed. One static binary deployable on a SCIF laptop. Reproducible builds.

Strict liboqs

liboqs 0.10+ with strict mode (no SIKE, no fallback). FIPS 204 (ML-DSA) and FIPS 205 (SLH-DSA) only.

Ledger export + offline anchor

Export the full Merkle tree as a portable artifact, anchored to the SEALSQ EK. Verify on a clean room machine without trust in 4Qubits.

No telemetry

Zero metrics, zero logs, zero analytics. Operator opt-in only. Built to the IC threat model first.