Trusted kernel-based anti-attack data processor

Abstract

The invention provides a trusted kernel-based anti-attack data processor. The data processor comprises a trusted kernel exception vector table used for providing a processing entry of kernel switching, a trusted kernel stack pointer register used for storing a trusted kernel stack pointer pointing to a trusted kernel stack space, and a trusted scene located in the trusted kernel stack space and comprising a program state register used for storing an initial kernel flag bit of the kernel switching, a program pointer and a universal register. When the data processor executes the kernel switching from a non trusted kernel to a trusted kernel, the trusted kernel is addressed to the processing entry of the kernel switching and the switching is executed. According to the processor, a bottom software protection mechanism can be provided for the switching entry of the trusted kernel, so that the switching of the trusted kernel and the non trusted kernel is securer.

Description

technical field [0001] The invention relates to the technical field of information security, in particular to an anti-attack data processor based on a trusted kernel. Background technique [0002] With the development of the mobile Internet and the Internet of Things and the wide application of information technology in production, operation, and management, the human economy and society are increasingly dependent on networks and information systems. Incidents such as virus attack, hacker attack and information theft occur from time to time, making the system security work increasingly important and attracting people's attention. [0003] At present, the security of system information has been guaranteed to a certain extent by introducing the security mode. In safe mode, the system truly implements hardware isolation. The system kernel runs at the highest privilege layer of the entire system, manages and controls the underlying hardware resources, and provides securely iso...

AI Technical Summary

Problems solved by technology

[0004] However, attackers can still use a series of methods to attack the trusted kernel in non-secure mode to obtain sensitive data, etc., and even cause the system to crash

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