Micron Technology, Inc.
Local ledger block chain for secure electronic control unit updates

Abstract:

The present disclosure includes apparatuses, methods, and systems for using a local ledger block chain for secure electronic control unit updates. An embodiment includes a memory, and circuitry configured to receive a global block to be added to a local ledger block chain for validating an electronic control unit update for electronic control unit data stored in the memory, where the global block to be added to the local ledger block chain includes a cryptographic hash of a current local block in the local ledger block chain, a cryptographic hash of the electronic control unit data stored in the memory to be updated, where the current local block in the local ledger block chain has a digital signature associated therewith that indicates the global block is from an authorized entity.