Infineon and XAIN to collaborate on bringing blockchain into the car

Infineon Technologies and XAIN have agreed to work together on bringing blockchain technology into the car. The goal of the collaboration is to test possible applications and develop suitable ones to market maturity. A first demonstrator shows how access rights, e.g. for car sharing, can be granted decentrally with a smartphone app.

A blockchain is a decentralized database that enables speedy transactions and particularly secure, tamper-free storage. In connection with cars, feasible applications for this technology include automated payments, keyless access for car sharing schemes, on-demand services, tuning protection and automated driving functions. Essentially, it is all about the granting of access rights – to the car itself or to specific data in the vehicle. An example involving specific data is when insurance companies offer low rates for car owners with good driving habits.

All of Infineon’s 2 nd generation AURIX microcontrollers can provide support for blockchain functionality in cars already today. This support is based on an embedded hardware security module that complies with the highest level of the EVITA security standard. An HSM consists of special computing and storage units within the microcontroller. It performs the cryptographic operations and is protected by a dedicated firewall of its own. The 2 nd generation AURIX microcontrollers thus have a secured memory for the digital key used for identification in the blockchain and are able to perform blockchain operations, such as hashing or digital signing, swiftly and securely. Certified security controllers such as the OPTIGA TPM 2.0 from Infineon for automotive applications allow even higher security levels to be reached.

However, the creation of new data blocks still represents a challenge for the conventional microcontrollers used in cars. Due to the enormous amounts of required computing power, the so-called mining as used in the context of cryptocurrencies, up to this point in time has been executed by high-performance processors. XAIN, however, is working on a new process that can also be performed on devices that need to be economical in their use of energy – such as microcontrollers in cars.

At the Infineon Automotive Cybersecurity Forum, Infineon and XAIN are presenting their first demonstrator. It shows how access rights can be granted decentrally, swiftly and securely by means of a smartphone app. An application for this would be a car sharing scheme without a platform or back-office in which all participants are able to spontaneously share their cars with others.


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