Trusted boot method, trusted component and chip of multiprocessor system
By encrypting the measurement results from the processor through authentication and key negotiation between the processor and trusted components, the problem of measurement results being tampered with in multiprocessor systems is solved, and the system's trusted boot security is improved.
CN122413433APending Publication Date: 2026-07-17HUAWEI TECH CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
In multiprocessor systems, the measurement results from the processors need to be transferred to the TPM through the main processor, which poses a risk of tampering and results in insufficient security for trusted boot.
Method used
The processor performs authentication and key negotiation with the trusted component, uses the negotiated key to encrypt the measurement results, and forwards them to the trusted component through the main processor, ensuring that the measurement results cannot be viewed or tampered with during transmission.
Benefits of technology
It enhances the trusted boot security of multiprocessor systems, ensuring the integrity and reliability of measurement results from the processor during transmission and preventing interference from the main processor.
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Figure CN122413433A_ABST
Abstract
The application discloses a trusted starting method of a multi-processor system, a trusted component and a chip, and relates to the chip field.In the method, when starting, the multi-processor system performs identity authentication and key negotiation between a processor and a trusted component through a main processor, and after the identity authentication is passed and the key is negotiated, the measurement result of the slave processor encrypted based on the key is forwarded to the trusted component through the main processor, so that the slave processor and the trusted component are guaranteed to perform channel encryption on the basis of mutual trust of identities, the measurement result of the slave processor cannot be viewed or tampered with in the transmission process, and the security of the trusted starting of the system is improved.
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