Ota updating

With regards to security that matters in terms of the reliability of vehicles, we listed all possible threats to security in the entire scheme from the OTA Center to ECUs.

Attackers may target whatever possible and in any possible way to cause harm.

So reliability, including safety and security measures, is extremely important.

The second is the very large number of ECUs incorporated in a vehicle.

However, users would feel it inconvenienet if they have to bring their vehicles to dealers each time they have the software updated to maintain and improve its quality. When vehicles are connected to networks, specific vehicles can be identified and accessed even from a remote location. If vehicles are cyberattacked to show abnormal operations, human lives are at stake.

On the other hand, if they do not want to bother themselves to bring their vehicles to the dealers and the software is not updated, that may put the vehicle in danger. In 2015, news that some vehicles produced by a certain automobile manufacturer were hacked became a topic.

In this situation, it has become a big issue to maintain and improve the quality of such software.

It is a technology to update software remotely through Over the Air (OTA) transmission.

In the case it is applied to vehicles, the data for software updates are sent to vehicles from a data center called the "OTA Center." The data goes through the telecommunication equipment and the gateway inside the vehicle to the electronic control units (ECUs), which control vehicles. Conventionally, when updating the software of the ECU in your vehicle, you had to contact your dealer or repair shop, bring the vehicle to them and have the software updated.

As such, we utilized what Hitachi has fostered to date, combining its know-how on applying security technologies to information systems and its knowledge in developing in-vehicle systems.

By doing so, we determined what measures should be taken on security for OTA software updates.

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