Application downloading method and device, smart card and medium

By building application methods and platform function interface structures in NativeCOS, compiling and generating application scripts, the post-download of smart card applications is realized, solving the problem that users cannot dynamically install or update applications, and improving the flexibility and user experience of smart cards.

CN119645522BActive Publication Date: 2025-11-07GUANGDONG CHUTIAN DRAGON SMART CARD
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Patent Information

Application Number
CN202411728698.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-28
Publication Date
2025-11-07
Estimated Expiration
2044-11-28

AI Technical Summary

Technical Problem

In the existing technology, the application of NativeCOS smart cards is pre-installed before leaving the factory, which makes it impossible for users to dynamically install or update applications according to their needs, reducing the flexibility of smart cards and increasing user costs.

Method used

This paper provides an application download method that constructs an application method structure and a platform function interface structure in NativeCOS, compiles the executable file of the target application project, generates application scripts using external devices, registers identification information, creates an application module directory, and realizes the installation and updating of the target application.

Benefits of technology

This improves the flexibility of smart card applications, allowing users to dynamically install or update applications as needed after delivery, reducing the need for users to purchase multiple smart cards and lowering costs and management complexity.

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Abstract

The application relates to the technical field of smart card operating system, and discloses an application downloading method and device, a smart card and a medium, the method comprising the following steps: obtaining a target application project, allocating an address for the target application project in a flash area; compiling the target application project to obtain a corresponding executable file; constructing an application module parameter structure body based on a starting address, identification information and an application method structure body of the target application project, and compiling the application module parameter structure body, and placing the compiled application module parameter structure body into the executable file; receiving an application script sent by an external device, executing instructions in the application script, and creating an application module directory; obtaining the application module parameter structure body based on the starting address of the target application project, installing the target application based on the application method structure body, and storing installation data of the target application under the target application directory. The application can realize smart card application post downloading.
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