Secure updates for navigation systems

At the push of a button by the driver, control units download the car manufacturer's new software -- such as enhanced map material for the navigation system. To ensure that this data channel is protected from hacker attack, the system needs the right cryptographic key. To date, these keys have been stored in each one of a vehicle's electronic control units. Thanks to a new form of trust anchor, this will be simpler and more economical in the future.

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