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Communication method, device and terminal for client application and trusted application

A technology of client application and communication method, which is applied in the field of device and terminal, communication method of client application and trusted application, can solve problems such as efficiency, versatility, and cross-platform capability constraints, and achieve the effect of improving efficiency

Active Publication Date: 2021-09-07
WATCHDATA SYST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, under different TEE OS platforms, the data interaction between CA and TA needs to comply with the parameter structure and semantics of the client API related to the TEE OS platform, which requires CA to organize request data, TA to parse request data, and TA to organize response Data, CA parsing response data and other functional modules must be customized and developed for different TEE OS platforms, resulting in obvious constraints on the efficiency, versatility, and cross-platform capabilities of the development and deployment of CA and TA

Method used

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  • Communication method, device and terminal for client application and trusted application
  • Communication method, device and terminal for client application and trusted application
  • Communication method, device and terminal for client application and trusted application

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Embodiment Construction

[0031] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0032] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.

[0033] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0034] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the descript...

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Abstract

The invention discloses a communication method, device and terminal between a client application and a trusted application, and relates to the communication field, wherein the method includes: CA generating a CA calling command corresponding to a trusted application calling command, based on a predetermined data exchange format Encapsulate the CA call instruction to generate the first encapsulated data and send it to TA; TA analyzes the first encapsulated data based on the predetermined data exchange format, obtains the CA call instruction, executes the encapsulation operation result based on the predetermined data exchange format to generate the second encapsulated data and returns it to CA . The communication method, device and terminal of the present invention facilitate the multiplexing of codes or modules by making the data format exchanged between CA and TA under different TEE platforms the same; The content of data exchanged between CA and TA under the platform is the same, which is conducive to the development and debugging of business function logic, and can improve the efficiency, versatility and cross-platform capability of the development and deployment of CA and TA.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a communication method, device and terminal for a client application and a trusted application. Background technique [0002] At present, most terminals integrate a Trusted Execution Environment (TEE, Trusted Execution Environment), and the application execution environment in the terminal includes Rich Execution Environment (REE, Rich Execution Environment) and TEE. REE consists of a client application (CA, Client Application) and an application operating system. The TEE consists of a trusted application (TA, TrustedApplication) and a trusted operating system (Trusted OS, Trusted Operating System). REE supports rich applications, but REE has certain security risks. TEE is an independent area in the terminal, and the installation of applications in this area is controlled by the management server platform; this area can take over key devices, provide hardware-lev...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L9/08H04L29/06
CPCH04L9/083H04L9/0877H04L63/0853
Inventor 李勃张渊
Owner WATCHDATA SYST
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