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Privacy & Cryptography Infrastructure

Your data, only yours.

End-to-end cryptographic infrastructure for organisations that cannot afford to be wrong.

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Privacy is not
a feature.
It is the
architecture.

Most security platforms bolt encryption on after the fact. Decypher is designed from the key outward — a cryptographic layer woven into every data flow, every handshake, every record at rest. We work with regulated industries, government contractors, and any organisation where a single breach ends careers.

Methodology

Three steps to an untouchable posture.

01

Threat Modelling

We map every data surface — ingress, egress, storage, transit, identity. Adversarial simulation reveals the gaps your current stack cannot see.

02

Cryptographic Layer

AES-256-GCM at rest. TLS 1.3 mutual-auth in transit. Zero-knowledge proofs where identity must be proven without exposure. Keys never leave your perimeter.

03

Continuous Compliance

Automated controls mapped to ISO 27001, SOC 2 Type II, and ASD Essential 8. Real-time dashboards. Audit-ready artefacts generated on demand.

Services

Three disciplines. One posture.

Infrastructure
Encrypt

Data Sovereignty

Full-stack encryption architecture. Client-side key management, hardware security modules, and zero-trust network segmentation deployed in your environment.

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01
Assessment
Audit

Cryptographic Audit

Source-level review of cryptographic implementations, protocol selection, and key lifecycle. We find what automated scanners miss.

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02
Governance
Comply

Compliance Engineering

ISO 27001, SOC 2, ASD Essential 8, GDPR, and APRA CPS 234. We translate regulatory obligations into working technical controls — not tick-box paperwork.

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03
Case Work

Deployed. Verified. Quiet.

Sovereign Messaging End-to-End Encrypted Sovereign Messaging
Vault Infrastructure Zero-Knowledge Storage Vault Infrastructure
Identity Fabric ZK Proof Auth Identity Fabric
Air-Gapped Archive Offline Sovereign Air-Gapped Archive
Hardware Token HSM-Backed Hardware Token
Secure Channel mTLS + MPC Secure Channel
Key Escrow Split-Knowledge Key Escrow
Federated Auth OIDC + FIDO2 Federated Auth
Case Studies

Engagements we can discuss.

Financial Services Group
Banking
Financial Services Group
Zero breaches across 4.2M customer records over 36 months post-deployment.
Government Contractor
Government
Government Contractor
ASD Essential 8 Maturity Level 3 achieved in 11 weeks. Passed IRAP assessment first attempt.
Health Records Platform
Healthcare
Health Records Platform
GDPR + Australian Privacy Act compliance engineered into core data layer. Audit findings: zero critical, zero high.
Critical Infrastructure Operator
Infrastructure
Critical Infrastructure Operator
Air-gapped backup architecture for OT/ICS environments. Recovery time objective reduced from 72h to 4h.
99.998%
Uptime across sovereign vaults
0
Known breaches on deployed infrastructure
41+
Enterprise clients protected
ISO 27001
Certified security management
Trusted by
Fortis GroupSentinel HealthAusFed LogisticsMeridian EnergyArcview CapitalPaladin Defence

Classified conversations welcome.

Request a 45-minute technical briefing. No pitch decks. We discuss your threat model, your obligations, and whether we can help.

Request a Briefing
ISO 27001 SOC 2 Type II ASD Essential 8 GDPR Compliant APRA CPS 234
Level 24, 1 Eagle Street, Brisbane QLD 4000
briefings@decypher.io
+61 7 3000 0240