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TrustZone-based secure intelligent mobile terminal trust train transfer method and system

A smart mobile terminal and delivery system technology, applied in the field of information security, can solve problems such as inability to ensure the security of the startup process of smart mobile terminals, and failure to establish

Active Publication Date: 2018-04-13
NO 709 RES INST OF CHINA SHIPBUILDING IND CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The chain of trust should be able to resist software attacks and hardware attacks. At present, smart mobile terminals based on TrustZone only realize the boot loading process from the security environment to the normal environment, and have not established complete trust of Bootloader1→Bootloader2→OS1→APP1 / Bootloader3→OS2→APP2 Chain, unable to ensure the security of the smart mobile terminal startup process, and resist software attacks and hardware attacks

Method used

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  • TrustZone-based secure intelligent mobile terminal trust train transfer method and system
  • TrustZone-based secure intelligent mobile terminal trust train transfer method and system
  • TrustZone-based secure intelligent mobile terminal trust train transfer method and system

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Embodiment Construction

[0027] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the invention.

[0028] OTP (One Time Programming) is a special register inside FLASH. The OTP register can only be programmed once, and it can no longer be modified after programming. The OTP register is similar to the FLASH data area, 1 can be rewritten to 0, but 0 cannot be written to 1.

[0029] The present invention utilizes this feature of the OTP register to provide a TrustZone-based intelligent mobile terminal trust chain security transfer method, such as figure 1 and figure 2 As shown, the described TrustZone-based intelligent mobile terminal trust chain security delivery method comprises t...

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Abstract

The invention discloses a TrustZone-based secure intelligent mobile terminal trust train transfer method and system. The method comprises the following steps of: carrying out secure startup preprocessing interaction with Bootloader 1, Bootloader 2, OS1, APP1, Bootloader 3, OS2 and APP2 by a trusted third party TTP, so as to obtain public key hash values; respectively storing the public key hash values to an OTP area; and authenticating public keys provided by posterior programs by prior programs through the public key hash values of the posterior programs in sequence according to a startup sequence. According to the method and system, a secure trust chain transfer process from a secure environment to a common environment is established through secure authentication startup, and the publickey hash values are stored to the OTP area according to the fact that OTP has a once programmable characteristic, so that uniqueness of public keys is ensured, the security of the intelligent mobile terminal startup process is ensured, and software attacks and hardware attacks can be defensed.

Description

technical field [0001] The invention relates to the field of information security, in particular to a TrustZone-based intelligent mobile terminal trust chain security transmission method and system. Background technique [0002] With the development of mobile Internet and smart mobile terminals, the ability of mobile terminals to obtain and process information has been greatly improved, and some data services that could only be processed by personal computers have gradually been transferred to mobile terminals, which makes more and more mobile terminals. Handle personal data and sensitive information with care. Therefore, it is necessary to provide security protection means for smart mobile terminals, so as to deal with the security problems brought by the openness of mobile Internet and the complexity of smart operating systems to smart mobile terminals. [0003] ARM has launched TrustZone, which is a security method implemented at all levels within the computer system, ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/64G06F21/62G06F21/71
CPCG06F21/6281G06F21/645G06F21/71
Inventor 徐明迪沈楚楚任正伟童言高杨高雪原
Owner NO 709 RES INST OF CHINA SHIPBUILDING IND CORP
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