Secure access method, integrated circuit and computer readable storage medium

Abstract

The invention discloses a secure access method, an integrated circuit and a computer readable storage medium. The method comprises the following steps: acquiring a security mark signal of a current access event and slave identity identification information; then, determining a target slave module to be accessed and a security attribute of the target slave module according to the slave identity identification information; and finally, according to the security mark signal, judging whether the security attribute of the target slave module meets the security attribute requirement of the current access event, and if the security attribute of the target slave module does not meet the security attribute requirement of the current access event, generating a security interruption event. A more effective slave security access control scheme is realized, the individual security access control capability of each device on the bus is improved, and the security protection strength of key sensitive data is enhanced.

Description

technical field [0001] The present invention relates to the technical field of communication, in particular to a safe access method, an integrated circuit and a computer-readable storage medium. Background technique [0002] In existing MCU (Microcontroller Unit, Micro Control Unit) / SOC (System on Chip, System on Chip) application scenarios, based on the purpose of information confidentiality and prevention of hacker attacks, it is necessary to protect key sensitive data, for example, in biological In scenarios such as information collection systems, vehicle electronic systems, and industrial control systems, separate and effective security access control is required for each device under the system. However, in the existing MCU / SOC products, only through the security gate bridged from AHB (Advanced high-performance bus, advanced high-performance system bus) to APB (Advanced peripheral bus, advanced peripheral bus), the entire APB bus and all the devices under the bus can be...

AI Technical Summary

Problems solved by technology

However, in the existing MCU / SOC products, only through the security gate bridged from AHB (Advanced high-performance bus, advanced high-performance system bus) to APB (Advanced peripheral bus, advanced peripheral bus), the entire APB bus and all the devices under the bus can be controlled. Peripheral devices perform security access control, but it is impossible to implement individual security access control for individual devices on the APB bus

[0003] Therefore, it can be seen that the MCU / SOC's security access control scheme for peripheral devices in the prior art has technical defects of poor security and low flexibility

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