Deliver a private IoT device identity chain with attestation, firmware verification, role-based access control, and a tamper-proof access audit trail. Cerulea Studio assembles it from Device Attestation, the DID and VC Ledger, and Role-Based Access Control so that only authenticated, up-to-date devices reach sensitive control systems.
Turn perimeter trust into per-device proof, so only attested, current-firmware devices touch control systems.
01.
Prove hardware before access. The Device Attestation module verifies each device's cryptographic identity at connection, so only genuine, enrolled hardware is admitted to the network.
02.
Block stale devices. The contract checks each device's reported firmware hash against the approved version, so an outdated or tampered image is refused before it reaches control systems.
03.
Scope what a device can do. The Role-Based Access Control module binds each device and technician to a role, so access is granted only to the systems that role permits.
04.
Attribute human access too. The DID and VC Ledger binds each technician to a verified credential, so every access event names both a device and a person.
05.
Record every access immutably. Each connection and command is written to an append-only log, so a security review reads a complete, unalterable history.
06.
Cut off compromised devices. A device that fails attestation or falls out of firmware compliance is revoked automatically, isolating it from the control network.
Follow a device from enrollment through firmware and identity checks to an audited access event on a control system.
07:04:11
[SYS] Initializing Device Identity Manifest...
07:04:11
[CMD] enrollDevice { id: "PLC_4471", fw: "v3.2.1", role: "ACTUATOR" }
07:04:12
[AUTH] Binding device key and firmware baseline...
07:04:12
[OK] Device PLC_4471 enrolled at block 13110233.
Cerulea decomposes device identity into modular contracts. Each layer enrolls, attests, authorizes, and audits without any device gaining access it cannot cryptographically justify.
Cryptographic device identity is a horizontal capability. Here is how different operators put the identity chain to work.
Admit only attested, current-firmware devices to plant control systems and attribute every command to a verified technician, hardening operational technology against unauthorized or outdated endpoints.
Key Asset Types
Enforce per-device attestation across distributed grid equipment, blocking compromised units automatically and keeping an immutable record of who accessed which asset and when.
Key Asset Types
Manage identity, firmware, and role-based access for building automation devices, so contractors and systems reach only the subsystems their role permits under a full audit trail.
Key Asset Types
Whether you are bridging existing device-management platforms or attesting devices directly from the edge, Cerulea routes both into one identity record.
For operators on established device-management platforms. Enrollment and firmware events are translated into on-chain identity records through the API gateway automatically.
Device Management Platform
Operator Systems
Cerulea API Gateway
Attestation Verification
Cerulea Private Chain
Device Identity Ledger
For devices attesting directly from the field. An embedded key signs each attestation and access request straight to the identity contract.
Edge Device / Secure Element
Field Endpoints
Identity Validators
Access Consensus
Cerulea Ledger
Device & Access Record
Building a device identity chain with attestation, firmware verification, role-based access control, and a tamper-proof audit trail from scratch requires specialised engineers and careful OT integration. Calculate your exact deployment speed using Cerulea.
Traditional Deployment
Solidity Coding & Audits
~ 13 Months
Visual Compilation
WASM Logical Artifacts
~ 4 Weeks
The legacy timeline reflects industrial security and device-management integration benchmarks. Building attestation, firmware verification, role-based access control, and an immutable audit trail across an average fleet takes a baseline of 8 months. Building the same architecture on Cerulea takes a baseline of 2 weeks, because Cerulea Studio visually translates your attestation and access rules into pre-audited WebAssembly binaries and provisions the device identity ledger and audit layer instantly.