Multi-processor trusted dynamic starting method and system, storage medium and terminal

Abstract

The invention provides a trusted dynamic starting method and system for multiple processors, a storage medium and a terminal. The method comprises the steps of constructing a trust chain of an image required for starting the multiple processors based on trusted firmware of the processors; the plurality of processors comprise a main processor and a slave processor; when the main processor is started, the authentication of all the images is completed based on the constructed trust chain, and the abstract of the images of the slave processors passing the authentication is stored in the security world of the main processor; and the master processor authenticates the image of the slave processor to be started based on the stored image abstract so as to dynamically start the slave processor. The trust chain construction process is simple and high in safety; the authentication is performed based on the pre-stored image abstract, so that the authentication is rapid and the code quantity is small; the main processor can be directly called from external storage media such as a hard disk, and the memory required by the slave processor can be powered off when the slave processor is closed, so that the system is energy-saving and environment-friendly, and is suitable for the field of embedded equipment with higher requirements on power consumption.

Description

technical field [0001] The present invention relates to the field of multiprocessor computers, in particular to a multiprocessor trusted dynamic startup method, system, storage medium and terminal. Background technique [0002] Multiple CPUs (CentralProcessing Unit, central processing unit) are integrated on a single SOC (System on Chip), one of which is a RISC (Reduced Instruction Set Computer) microcomputer with security extension function. In the case of a processor, the following two technical solutions are generally used when the CPU needs to be dynamically shut down and started: [0003] The first solution is: when the main CPU starts, the IMAGE (binary program image that can be directly executed by the CPU, referred to as the image) required for the operation of all CPUs is simultaneously authenticated and loaded and kept in memory, and some slave CPUs need to be shut down. Do not turn off the power of the memory where its IMAGE is stored, so that it can be directly ...

AI Technical Summary

Problems solved by technology

[0005] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a trusted dynamic startup method, system, storage medium and terminal for multiprocessors, which are used to solve the problem of high power consumption of multiprocessor startup in the prior art. or technical issues with lengthy and time-consuming certification processes

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