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A security input system and method based on trustzone technology

A technology of secure input and input method, applied in the field of secure input system, can solve problems such as no, and achieve the effect of reducing complexity, ensuring universality and confidentiality

Inactive Publication Date: 2019-06-04
INST OF INFORMATION ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] There is no technical report to solve the above problems in the prior art

Method used

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  • A security input system and method based on trustzone technology
  • A security input system and method based on trustzone technology
  • A security input system and method based on trustzone technology

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Experimental program
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Embodiment Construction

[0026] The invention uses the ARM TrustZone hardware isolation technology and the trusted execution environment as the basic platform to realize a universal safe input system. In the user name and password input scenario, the operation of the ordinary execution environment is switched to the trusted execution environment for execution through a safe interrupt. The user inputs in an environment isolated from the ordinary execution environment, and submits sensitive information to ordinary applications by adding system services; under the premise of ensuring minimal changes to the system, reuse the software of the current third-party input method in the trusted execution environment The keyboard allows the user to input, and the keyboard layout detection module is responsible for detecting the safety of the multiplexed soft keyboard; the key value safety return module of the present invention adds the system service "safe key value submission service" without passing through a thir...

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Abstract

The invention relates to a secure input system and method based on a TrustZone technology. The system comprises a user name and password scene identification module positioned in a common execution environment, a keyboard layout detection module positioned in a credible execution environment, an isolation initialization module and a key value secure return module. The system effectively guarantees the security of an input system of a mobile terminal, and has the advantages of universality, high efficiency, user friendliness, high security and the like.

Description

Technical field [0001] The invention relates to a safe input system and method based on TrusZone (trust zone) technology, and belongs to the field of mobile terminal security. Background technique [0002] With the rapid development of mobile Internet technology and mobile smart terminals, the services handled by mobile terminals extend from traditional communications and entertainment fields to high-security and high-sensitive business fields such as mobile office and mobile payment. Users need to enter more and more sensitive information on mobile terminals, including login user names and passwords, contact information, bank card numbers, etc. Research has found that most third-party input method software will send the input information to the remote server during the user’s input, including private information such as username and password. Therefore, it is necessary to protect the sensitive information entered by the user on the mobile terminal in this case. Malicious interc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F21/83G06F3/0488
CPCG06F3/04886G06F21/83
Inventor 田琛王雅哲代蕊蕊周启惠徐震
Owner INST OF INFORMATION ENG CHINESE ACAD OF SCI