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Method and device for applying patch program in Java Card

An application program and patch technology, applied in the field of smart cards, can solve problems such as long time occupation, data loss, and reduced card issuance efficiency, so as to ensure security, improve card issuance efficiency, and avoid user data loss.

Inactive Publication Date: 2013-09-25
BEIJING WATCH DATA SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method will cause data loss during the user's use
At the same time, if the application program on the Java Card itself takes up a lot of space, but needs to be modified less, the entire application program needs to be downloaded again after modification, which takes a long time, thereby reducing Card issuance efficiency

Method used

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  • Method and device for applying patch program in Java Card
  • Method and device for applying patch program in Java Card
  • Method and device for applying patch program in Java Card

Examples

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Embodiment Construction

[0019] In order to avoid the loss of user data caused by updating the application program and improve the development efficiency, the embodiment of the present invention provides a method and device for applying a patch program in Java Card, which can effectively avoid the loss of user data caused by updating the application program , and improve card issuance efficiency. The method is: judging whether the state of the patch of the JavaCard application is activated, if it is determined that the state of the patch is activated, then obtaining the unique identifier of the patch, and obtaining the corresponding patch according to the unique identifier of the patch and running , if it is determined that the status of the patch program is not activated, the original application program is run.

[0020] Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0021] See attached figure 1 As shown, in the embo...

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Abstract

The invention discloses a method and a device for applying a patch program in a Java Card, in order to avoid user data loss caused by updating an application program and improve the development efficiency. The method comprises the following steps of: judging whether the patch program of the Java Card application program is in an enabled state or not; if so, acquiring the only identifier of the patch program, acquiring the corresponding patch program according to the only identifier of the patch program and running the corresponding patch program; otherwise, running the primary application program. By the method, the user data loss caused by updating the application program can be effectively avoided and the development efficiency is improved. The invention discloses the device for applying the patch program in the Java Card.

Description

technical field [0001] The invention relates to the field of smart cards, in particular to a method and device for applying a patch program in a Java Card. Background technique [0002] The memory system of the smart card is mainly composed of read-write memory (RAM), read-only memory (ROM) and erasable programmable memory (EEPROM). Java Card is a smart card that can run Java program code. The application programs stored in the EEPROM on the Java Card can be downloaded, installed and deleted through GlobalPlatform standard commands (referred to as GP commands). [0003] In the prior art, if the original application program is found to be defective during the use of the Java Card, the problem can be solved by deleting the original application program and downloading and installing a new application program. However, this method will cause data loss during the user's use. At the same time, if the application program on the Java Card itself takes up a lot of space, but needs...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/445
Inventor 王飞
Owner BEIJING WATCH DATA SYST
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