Industry Challenge
- Transportation systems span vast, distributed environments — trackside signaling, roadside units, tolling gantries, transit fleets, and connected vehicles — many of which operate in remote locations where connectivity is intermittent and physical access is limited.
- Rail signaling, PTC, and traffic-control systems were built decades ago with weak or proprietary cryptography and are rarely patched.
- Connected-vehicle and V2X ecosystems must authenticate messages in real time, yet cannot rely on a reachable certificate authority.
- ITS networks (traffic controllers, tolling, transit management) depend on internal PKI that operators struggle to maintain at scale.
- Regulatory frameworks such as TSA Security Directives, ISO/SAE 21434, and IEC 62443 require provable identity and key governance — something manual certificate and key processes cannot reliably deliver.
Amera® Solution
Offline-Capable OT Authentication and Certificate-Free Vehicle Identity
- Deterministic, hardware-rooted identity and encryption for signaling, PTC, and control systems — operating entirely offline across remote corridors.
- Vehicles, roadside units, and V2X infrastructure authenticate using deterministic, hardware-rooted identity with no dependency on a reachable CA.
- Traffic controllers, tolling systems, and transit management move from static certificates to continuously rotating symmetric keys, eliminating expiry-driven outages.
- AmeraKey® governs encryption keys for fare systems, passenger records, and logistics data with deterministic derivation, rotation policies, and audit-ready logs.
- All identity and key lifecycle operations run entirely inside transportation OT networks — no cloud dependency, no external trust chain.
Use Cases
Securing Rail Signaling and Positive Train Control
Trackside signaling, interlocking, and PTC systems operate across remote corridors where certificate renewal is impractical. AmeraKey® authenticates and encrypts commands entirely offline, rejecting spoofed or replayed signaling instructions.
Certificate-Free Identity for Connected Vehicles and V2X
Vehicles and roadside units must authenticate messages instantly, even when no CA is reachable. AmeraKey® provides deterministic, hardware-rooted identity and auto-rotating symmetric keys aligned with ISO/SAE 21434.
Protecting Traffic Management and Tolling Networks
Traffic controllers, tolling gantries, and transit management systems often rely on internal PKI that is difficult to maintain. AmeraKey® replaces certificate-based identity with hardware-rooted identity across ITS networks, eliminating renewal calendars.
Key Governance for Passenger, Fare, and Logistics Data
Fare collection, passenger records, and logistics systems require strong encryption and governed key lifecycle. AmeraKey® provides deterministic derivation, rotation, and audit logging aligned with TSA Security Directives and PCI-DSS (where payment data is involved).
Key Benefits
Offline-capable OT security
Full authentication and encryption for signaling and control systems with no reliance on connectivity.
Real-time vehicle and V2X identity
Hardware-rooted identity enables instant message authentication without a reachable CA.
No internal CA for ITS networks
Eliminates certificate issuance and renewal across traffic, tolling, and transit systems.
Tamper-proof commands
Mutual authentication rejects spoofed or replayed signaling and control instructions.
Regulatory-aligned auditability
Identity and key events are logged and exportable as evidence for TSA, ISO/SAE 21434, and IEC 62443 workflows.
Positioning Statement
Amera® secures transportation networks from the rail corridor to the connected vehicle with offline-capable OT authentication and certificate-free identity — protecting signaling, traffic control, and passenger data in alignment with TSA, ISO/SAE 21434, and IEC 62443.