Method for protecting against manipulation of a controller for at least one motor vehicle component and controller
OwnerOliver Feilen, Rudiger Stadtmullerinventors
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Abstract
The invention relates to a method for protecting against manipulation of a controller for at least one motor vehicle component, the control device (1) comprising at least one microcomputer (μC) and at least one memory module (2, 3), at least one of the memory modules (2, 3) constituting a reversible read-only memory (3), characterized in that the reversible read-only memory (3) stores data which have been encrypted by an encryption process, and the key used in the encryption process comprises at least one part of at least one original identifier (ID) of at least one of the modules (μC, 2, 3) of the control device, which identifier is specific to the module.
Claims11
A method for protecting against manipulation of a motor vehicle controller, the motor vehicle controller comprising at least one microcomputer and at least one memory module at least one of the at least one memory module constituting a reversible read-only memory said method comprising:
- encrypting data by an encryption process:
- storing said encrypted data in the reversible read-only memory;
- wherein said encrypting step comprises using a key in the encryption process and said key comprises at least one part of at least one original identifier of at least one module, said module selected from the group consisting of the at least one memory module and the at least one microcomputer of the control device, which identifier is specific to the module.
(canceled)
A method for protecting against tampering with a device, said device comprising plurality of components, each component associated with an identifier, said method comprising:
- reading an identifier associated with one of said plurality of components;
- generating a decryption key from said at least one identifier;
- decrypting data stored in a memory unit with said key;
- and
- comparing said decrypted data with stored data.
Dependencies are inferred from the claim text.