AutoCrypt PKI

Public Key Infrastructure for Connected Vehicles

Protecting all vehicle connections with PKI-based authentication.

AutoCrypt PKI is a specialized public key infrastructure (PKI) dedicated to the verification of participants during vehicular communications in applications such as V2X, Plug&Charge (PnC), and digital key.

Best known for its usage in V2X environments, AutoCrypt V2X-PKI (AutoCrypt SCMS) is a tri-standard Security Credential Management System (SCMS) that supports the North American SCMS, European CCMS, and Chinese C-SCMS, providing certificate-based authentication for onboard units and roadside units in compliance with IEEE 1609.2, ETSI, GB/T, and YD/T 3957-2021.

AutoCrypt PKI is a crucial component of AutoCrypt V2X, AutoCrypt PnC, and is utilized across a wide range of vehicle connections including the digital key.


All You Need to Know About PKI

and stay prepared with AUTOCRYPT

The Basics of PKI

AutoCrypt PKI issues both enrolment certificates and authorization certificates to OBUs and RSUs.

Enrolment certificates are issued when the units are first registered, while authorization certificates are issued every time before a basic safety message (BSM) is sent. Authorization certificates are further broken down into pseudonym certificates (for vehicle identification), identification certificates (for infrastructure), and application certificates (for OBUs). These certificates act as IDs that prove the identity of the participants and the legitimacy of the messages.

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Certificate-Based Authentication

AutoCrypt PKI provides a reliable certificate-based authentication process; a three-step process that comprises of certificate generation, distribution, and revocation.

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AutoCrypt PKI

Having demonstrated interoperability with international protocols like the SCMS, CCMS, and C-SCMS, AutoCrypt PKI is a crucial component for V2X, V2G, and a wide range of vehicular communications, ensuring mutual safety for all parties.

Security and Management

Does not re-enter incorrect SCMS information

Malfunction Detection

Identifies abnormal devices and revokes their certificates

Mutual Safety

Exchange of data with other vehicles, devices, and infrastructure