Terminal equipment and start method thereof

Abstract

The invention discloses terminal equipment and a start method thereof. The method includes the steps that a start code is run to make a skip to a first safety code for running; the first safety code is run to verify basic safety content; when the basic safety content passes the verification, a second safety code in the basic safety content is run to verify a bootstrap program; when the bootstrap program passes the verification, the bootstrap program is run, wherein the first safety code is stored in a one-time programmable storage region in a nonvolatile first memory, the basic safety content and the bootstrap program are stored in the nonvolatile first memory, the start code is stored in a read-only second memory, and the first memory and the second memory are located on different wafers. According to the scheme, safe start of the terminal equipment can be achieved by using chips without the safe start function.

Description

technical field [0001] The present invention relates to the field of intelligent terminals, in particular to a terminal device and a starting method thereof. Background technique [0002] With the development of intelligent mobile terminals, the operating system of intelligent terminals can already provide the operating environment of various application software. The popularization of intelligent terminals and the prosperity of mobile Internet applications make more and more users use intelligent terminals to deal with various security-sensitive business, so that the mobile terminal faces various security threats. [0003] All intrusions to the field of smart terminals need to change the system content, and almost all intrusions need to change key system files, 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 in It is carried out when the smart terminal is started, so as to ens...

AI Technical Summary

Problems solved by technology

[0008] The above process does not verify the code, the code can be changed and cracked at will, and the security of the smart terminal cannot be guaranteed. For example, the lock network lock card is easy to be cracked

However, some chips support secure boot, but some chips do not include modules related to secure boot. For chips that do not involve secure boot functions, terminal devices are less secure when booting.

Images