Updating of Data Instructions
AssigneeSony Ericsson Mobile Communications AB
InventorsStefan Andersson, Marcus Liwell, Peter Ljung
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Abstract
A method and an electronic device for updating data instructions of an electronic apparatus (1) based on updating data. The method comprises acquiring updating data for updating of data instructions, meta data associated with the updating data, and at least one security mechanism associated with at least one of the updating data and the meta data. Then, it is verified by means of the security mechanism whether any of the updating data and the meta data has been unauthorizedly altered. A method and an arrangement for generating the updating data and the meta data are also disclosed.
Claims23
A method for updating data instructions of an electronic apparatus (1) based on updating data, comprising:
- acquiring updating data for updating data instructions;
- acquiring meta data associated with the updating data;
- acquiring at least one security mechanism associated with at least one of the updating data and the meta data;
- and
- verifying, by means of the security mechanism, whether any of the updating data and the meta data has been unauthorizedly altered.
The method according to any of the previous claims, comprising:
- executing the step of verifying in response to a request for updating the data instructions.
The method according to any of the previous claims, comprising:
- storing the updating data at a storage location (12), which is not accessible without authorization.
The method according to any of the previous claims, comprising:
- acquiring the updating data and the meta data from a common data file (100).
A method for generating updating data for updating data instructions of an electronic device, comprising:
- generating updating data for updating at least a portion of data instructions;
- generating meta data containing at least one updating criterion for the updating data;
- and
- attaching a security mechanism to at least one of the updating data and the meta data.
An electronic device for updating data instructions of an electronic apparatus (1) based on updating data, comprising and updating unit (13) configured to:
- acquire updating data for updating data instructions;
- acquire meta data associated with the updating data;
- acquire at least one security mechanism associated with at least one of the updating data and the meta data;
- and
- verify, by means of the security mechanism, whether any of the updating data and the meta data has been unauthorizedly altered.
An arrangement for generating updating data for updating data instructions of an electronic device (1), comprising:
- an updating data generator (151) operative to generate updating data for updating at least a portion of data instructions;
- a meta data generator operative to generate meta data containing at least one updating criterion for the updating data;
- and
- a security unit (153) operative to attach a security mechanism to at least one of the updating data and the meta data.
Dependencies are inferred from the claim text.