Trusted user interface framework of mobile platform based on TrustZone

A user interface and mobile platform technology, applied in the protection of internal/peripheral computer components, etc., can solve the problems of high deployment cost and difficult development of trusted UI, and achieve the effect of ensuring security

Inactive Publication Date: 2015-07-29
SHANGHAI TRUSTKERNEL INFORMATION TECH CO LTD
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AI Technical Summary

Problems solved by technology

The trusted UI framework of the present invention attempts to solve the problems

Method used

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  • Trusted user interface framework of mobile platform based on TrustZone
  • Trusted user interface framework of mobile platform based on TrustZone

Examples

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Embodiment

[0026] The following takes the stage in which the user provides verification information (such as user name and password) in a secure payment application as an example to introduce specific implementations of the present invention, such as figure 2 Shown:

[0027] 1. The user makes a purchase in the normal mode and prepares to enter a secure payment interface to provide verification information. There are trusted UI controls in this secure payment interface: user input text box, password input text box, and confirmation button. When these controls need to be drawn, the application in normal mode will send the drawing scene instruction to the safe mode through the mode switching component.

[0028] 2. The trusted UI service component in the safe mode will draw the trusted UI control in the safe display buffer according to the information transmitted by the application. The safe display buffer is at the top of the screen when it is displayed and will not be overwritten by the conte...

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Abstract

The invention discloses a trusted user interface framework of a mobile platform based on TrustZone, and belongs to the field of mobile platform security. The trusted user interface framework comprises a customization and separation implementation method for a trusted user interface and a multi-buffering-zone layered rendering mechanism for the trusted UI (user interface) and a common UI. By the adoption of the customization and separation implementation method for the trusted user interface and the multi-buffering-zone layered rendering mechanism for the trusted UI (user interface) and the common UI, the invention provides the trusted user interface framework of the mobile platform based on TrustZone, which is undisturbed, low in arrangement cost and low in influence on original application appearance, so that the completeness and the confidentiality of user data are guaranteed under the condition that an original system is captured. According to the trusted user interface framework, the development doorsill of the trusted UI is greatly reduced, and the display effect of the trusted UI is improved; the security of mobile application is improved to a certain extent; the progress of current mobile office and mobile living is propelled, so that the social and economical benefits are potentially improved.

Description

Technical field [0001] The invention belongs to the technical field of mobile platform security, specifically, is a non-intrusive Android trusted user interface framework with low deployment cost. Background technique [0002] As mobile devices increasingly participate in security-sensitive businesses (such as payment and office) in real life, mobile platforms have gradually gathered a large amount of sensitive data. Among them, the user interface has become one of the main targets of malicious behavior because of the huge software stack involved and the relatively sensitive position in the application (processing input and output). There are many ways to attack the user interface, which can be roughly divided into two categories: data theft and information tampering. The first type of attack can be implemented by forging the user interface to obtain user input, overwriting the correct content to deceive the user clicking, etc., or by intercepting the content of the user input o...

Claims

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Application Information

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IPC IPC(8): G06F21/74
CPCG06F21/74
Inventor 梁凉
Owner SHANGHAI TRUSTKERNEL INFORMATION TECH CO LTD
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