Method for starting terminal device and terminal device in multi-trusted execution environment

Abstract

The invention discloses a terminal equipment starting method under a multiple credible execution environments and terminal equipment. The method comprises the following steps of: operating a startingcode to ensure that the terminal equipment is operated in a configuration mode; under the configuration mode, distributing an operation address field of a memory which can be used by each credible execution environment, wherein the operation address fields of different credible execution environments have different ranges; verifying a guiding code of each credible execution environment by the starting code; after the verification passes, loading the guiding code of each credible execution environment into the corresponding operation address field in the memory, and exiting the configuration mode; and calling an instruction by the starting code so as to operate the guiding codes of the credible execution environments in sequence and then load and start corresponding secure operation systems. According to the method and the terminal equipment, secure start of the terminal equipment under multiple credible execution environments is realized.

Description

technical field [0001] The present invention relates to the communication field, in particular to a method for starting a terminal device in a multi-trusted execution environment and the terminal device. Background technique [0002] At present, with the development of intelligent mobile terminals, the operating system of intelligent terminals can already provide the operating environment of various application software. The popularity of intelligent terminals and the prosperity of mobile Internet applications make more and more users use intelligent terminals to process various The security-sensitive business makes the mobile terminal face various security threats. For smart terminals, basically all intrusions to the terminal system need to change the system content, so it is very necessary to verify the integrity and consistency of the system. The verification of the integrity and consistency of the system is carried out when the smart terminal starts, so that Ensure the ...

AI Technical Summary

Problems solved by technology

[0005] However, when the terminal runs multiple operating systems and applications, that is, when there are multiple trusted execution environments (Trusted Execution Environment, TEE), multiple secure operating systems are independent of each other, and there must be a problem of starting the secure operating system during startup. sequence

In the secure boot method of the prior art, if the previous secure operating system that starts does not guide the next one, a certain secure operating system may be skipped; even the previous secure operating system that starts can modify the information, causing the terminal to fail to start

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