Control device and method for initializing a control device

By designing an open and protected operation mode in the control device and providing key writing and data management services, the problem of insufficient flexibility in the security and key management of control devices in the prior art is solved, and higher security and flexible key management are achieved.

CN119731656APending Publication Date: 2025-03-28SCHAEFFLER TECHNOLOGIES AG & CO KG
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Patent Information

Application Number
CN202380059625.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2022-08-31
Filing Date
2023-08-24
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

Existing control devices have shortcomings in terms of security and flexibility in security methods, it is difficult to effectively protect interface access, and key management is not flexible enough.

Method used

Design a control device with an open operation mode and a protected operation mode. By providing services for writing keys and querying/changing data, it realizes personalized management of keys and multiple key guarantees, ensuring that only through legal keys can the protected services be accessed.

Benefits of technology

Improves the security of control devices and flexibility in key management, ensures that the device is protected from unauthorized access, and the key management method is more flexible and personalized.

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Abstract

The invention relates to a control device (1) comprising at least one data processing unit (7); at least one non-volatile memory for storing program code for the data processing unit (7); and at least one interface (4, 5) for accessing services provided by the control device (1). The control device (1) is configured to start in an open operating mode (S1) when a predetermined memory area (9e) of the at least one non-volatile memory (8) does not contain data; and providing a first service (10a) for writing the key into the predetermined memory area (9e) in the open operating mode (S1). The control device (1) cw is configured to start in a protected operating mode (S2) and to provide in the protected operating mode (S2) at least one second service (10b, 10c, 10e) for querying and / or changing data stored in the at least one data processing unit (7) and / or the at least one non-volatile memory (8) when the predetermined memory area (9e) contains data, wherein the access to the second service is secured in the secured operating mode (S2) by means of at least one key stored in a predetermined memory area (9e). The invention further relates to a method for initializing a control device (1).
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