Zero Trust Architecture

Zero Unauthorized Traces.

We assume the network is compromised. We assume the server is compromised. Our architecture guarantees confidentiality even in the most hostile environments.

Client-Side Sovereignty

Private keys are generated on-device and never leave. They are stored in the device's Secure Enclave (iOS) or Keystore (Android). We cannot decrypt your messages, even under subpoena.

Minimize Data Retention

Messages are ephemeral by default. Once delivered, they are deleted from our relay servers. Metadata is stripped to the bare minimum required for routing (Sealed Sender).

Verifiable Integrity

All client code is source-available for audit. Cryptographic primitives are standard, open implementations (Signal Protocol, MLS). No proprietary "black box" crypto.

Dual-Channel Architecture (Data Diode Support)

For high-assurance networks (SIPRNet/JWICS), VAULT supports a split-tier architecture. The Relay sits on the transport network (Low Side), while the Database & Core sit on the secure network (High Side), connected only via a hardware Data Diode or strict one-way firewall rules. This physically prevents data exfiltration.

[Internet/NIPR] --> [Relay Node] --> || DATA DIODE || --> [Secure Core DB] (SIPR)

Cryptographic Standards

Double Ratchet Algorithm

Provides Perfect Forward Secrecy (PFS) and Post-Compromise Security (PCS). Session keys rotate with every single message.

X3DH Key Agreement

Extended Triple Diffie-Hellman ensures mutual authentication and deniability. Pre-keys allow asynchronous messaging secure from the start.

AES-256-GCM

Authenticated Encryption with Associated Data (AEAD) ensures both confidentiality and integrity of the ciphertext.

// Security primitive validation
/* FIPS 140-2 Level 2 Compliant */

module vault_crypto {

use x25519_dalek::StaticSecret;

use aes_gcm::Aes256Gcm;

use sha2::Sha512;

pub fn verify_ratchet( root_key: &[u8], chain_key: &[u8] ) -> Result<(), CryptoError> {

// Implementation follows Signal spec

let hkdf = Hkdf::<Sha512>::new(Some(salt), root_key);

hkdf.expand(&info, &mut output)?;

}

Compliance Architecture

Built to meet the specific requirements of Federal and Defense agencies.

FedRAMP

Aligned*

FIPS 140-2

Targeted*

SOC 2

Roadmap*

HIPAA

Designed For*

* Compliance certifications are in progress. Contact sales for current audit status and roadmap.

Agency Vulnerability Disclosure

Restricted Access Program

Our Vulnerability Disclosure Program (VDP) is compliant with BOD 20-01 and follows strict federal reporting guidelines. Access to VDP submission portals and reports is restricted to authorized agency partners and cleared security researchers.

Contact your agency Information System Security Officer (ISSO) for access credentials.

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