Communication among cars (V2V) and communication between cars and infrastructure (V2I) require security

The exchange of sensitive information requires authenticity and integrity of data. A strong protection of these two main security aspects are obligated to provide a reliable technology to trigger trustful driver warnings and -in future- autonomous reactions in the context of self-driving cars.

In addition, the V2X communication technology needs to support the protection of driver’s privacy - meaning to prevent the possibility to track a specific vehicle.

By establishing a secured channel to a dedicated pseudonym certification authority, the V2X Security Controller can receive and store a pool of pseudonym certificates and related private keys. A high level of protection for the private keys is a must. Further, the V2X Security Controller uses these keys and certificates to sign the outgoing messages. The pseudonym certificates are changed frequently when signing the messages to avoid identification and tracking of a vehicle.

Infineon’s V2X Security Controller: The trust anchor for Car-to-Car communication

Related private keys need a high level of protection because they form the basis of C2C security in the context of signing the outgoing messages.

The V2X Security Controller was developed by Infineon and optimized for Vehicle-to-Vehicle communication to fulfill the required performance and to provide the right level of security.

Automotive quality and security

The V2X Security Controller is certified according to Common Criteria and supports both European and US standards. Since the V2X Security Controller is based on a hardware applied for other large scale automobile applications, the automotive industry will benefit from mass production quality enhancements.

The V2X Security Controller is qualified and documented according to AEC-Q100 and PPAP and supports an extended temperature range.

USE CASES - Securing V2X communications with Infineon HSM

Savari has integrated Infineon’s eSE in their aftermarket On Board Equipment (OBE) and Road Side Equipment (RSE) devices. Download full use case

Savari Inc.

Savari seeks to make the world’s roadways and vehicles automated and safer by deploying advanced wireless sensor technologies and software. Savari builds software and hardware sensor solutions for automotive car manufacturers, the automotive aftermarket and smart cities. The company pioneered V2X radio technology, which is crucial for vehicles to achieve Level 4 and Level 5 of automation. The technology allows vehicles to share data with other vehicles, traffic lights and smartphones. With more than 150 man-years of V2X learning and development and 15 million-plus miles per year of public testing, Savari is a leader in V2X technology. Savari is headquartered in Santa Clara, California and has offices in Detroit, Mich., Munich, Germany, Seoul, Korea, Bengaluru, India, Shanghai, China. For more information, visit

Savari's contribution to the Infineon Security Partner Network

Savari has been working on V2X since its inception in 2009 and is a proven leader in the industry. We work with the world’s largest providers for connected vehicle hardware and software to provide an integrated, full functionality and highly secured V2X platform for the safety and mobility applications of the future.

Infineon is a worldwide leader in automotive semiconductors, and it has been our pleasure to partner with them to help expand their reach to include support of the rapidly growing V2X market.

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