# Smart Cities & Infrastructure

Source: https://www.omnitrust.com/case-study/smart-cities-infrastructure-2/

## Enabling Secure Interoperability Across OEM, CPO, and eMSP Networks

A global electric vehicle manufacturer needed to support ISO 15118-compliant Plug & Charge across its growing network of vehicles, charge points, and service providers. As EV adoption accelerated, the company required a unified trust infrastructure that could authenticate vehicles, chargers, and mobility service providers automatically — eliminating user friction while maintaining cryptographic control and compliance with international standards.

## OmniTrust Solution

OmniTrust delivered its **ChargeAuth** platform — a production-grade, vehicle-to-grid (V2G) public key infrastructure built on the same **Secure Credential Management System (SCMS)** architecture trusted by leading automakers and state transportation agencies.

At the manufacturing level, OmniTrust enabled **secure certificate provisioning** directly into vehicle controllers, ensuring every EV left the factory with a unique, verifiable identity.

For charging infrastructure, OmniTrust provided **CPO-facing interfaces and APIs** to automate certificate enrollment, renewal, and revocation across distributed charging networks.

OmniTrust also supported the customer’s **e-Mobility Service Provider (eMSP)** operations by integrating authentication services for Plug & Charge transactions, ensuring seamless roaming across partner networks.

Behind the scenes, all certificates, signing keys, and revocation lists are managed through **FIPS 140-validated hardware security modules (HSMs)** and **24/7 enterprise-grade infrastructure** operated by OmniTrust.

## Results

- Delivered **standards-compliant Plug & Charge** capability under ISO 15118-2 and -20

- Enabled **interoperability** between OEM, CPO, and eMSP ecosystems

- Maintained **OEM control over cryptographic roots** and certificate lifecycles

- Simplified **global compliance** through centralized certificate authority services

- Strengthened **customer trust and charging reliability** through automated authentication