Safe starting method and device

Abstract

The invention discloses a safe starting method and device. The method comprises the steps: in a second memory, loading a second program through a first program, wherein the first program is stored ina safe address space of a first memory; loading an operating system through the second program in a common address space of a third memory; loading a third program through the second program in the safe address space of at least one of the second memory and the third memory; and reading the encrypted data in the file system of the operating system into the safe address space of the third memory through the third program. Loading and decryption of large-scale security data can be realized while hardware resource requirements of an SRAM and the like are reduced, leakage of chip security data isprevented, illegal attacks are avoided, and the security of devices such as a chip and the like is improved while the system cost is reduced.

Description

technical field [0001] The present application relates to the field of chip technology, and in particular to a secure boot method, device, multiprocessor integrated device, and computer-readable storage medium. Background technique [0002] When chip manufacturers provide customers with SoC (System on Chip, system-on-chip) solutions, sensitive information such as data and logic codes with various security attributes are usually stored inside. If these information is cracked and obtained, it will cause Leakage of intellectual property rights such as business secrets; at the same time, if the information is illegally modified by attackers during the system startup process, system security will be affected. On the other hand, SoC chips generally use SRAM with fast access speed as the on-chip cache. If all confidential data is read into SRAM, using a large amount of SRAM to store will increase the hardware cost of the system. Contents of the invention [0003] In order to sol...

AI Technical Summary

Problems solved by technology

[0002] When chip manufacturers provide customers with SoC (System on Chip, system-on-chip) solutions, sensitive information such as data and logic codes with various security attributes are usually stored inside. If these information is cracked and obtained, it will cause Leakage of intellectual property rights such as trade secrets; at the same time, if the information is illegally modified by attackers during the system startup process, system security will be affected

On the other hand, SoC chips generally use SRAM with fast access speed as the on-chip cache. If all confidential data is read to SRAM, using a large number of SRAM storage will increase the hardware cost of the system.

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