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JAVA CARD based backup and recovery method for data in application

A technology of internal data and recovery methods, which is applied to the redundancy in the operation for data error detection and response error generation. , the effect of efficient use

Inactive Publication Date: 2016-02-03
EASTCOMPEACE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But no matter which method is used above, the original internal data including personalized data on the card cannot be saved and is lost. It is necessary to rewrite new internal data to the card, which causes a waste of data information and prolongs the life of the card. In addition, the second method also caused waste of cards

Method used

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  • JAVA CARD based backup and recovery method for data in application
  • JAVA CARD based backup and recovery method for data in application
  • JAVA CARD based backup and recovery method for data in application

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Embodiment Construction

[0012] The technical solution of the present invention will now be further described in detail in conjunction with the accompanying drawings and specific implementation methods.

[0013] The method for backing up and restoring the internal data of the App application in the JAVACARD of this embodiment mainly includes data backup and data restoration. JAVACARD has multiple functional App applications suitable for various application environments, that is to say, the JAVACARD platform is a multi-application environment, and different small application programs from different suppliers coexist on the same JAVACARD. An applet is assigned to an execution context that controls access to the objects assigned to it. The boundary between one execution context and another execution context is often referred to as the application's firewall (AppletFirewall). The JavaCard firewall creates a virtual heap so that an object can only access (public) methods and data that exist within the same...

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Abstract

The invention provides a JAVA CARD based backup and recovery method for data in an application. The method comprises: developing a BackUpDataApp; obtaining data in an App by utilizing the BackUpDataApp, and performing backup on the data; deleting an App package, writing the data into a new App package, and installing a new App; and obtaining the data backed up in the BackUpDataApp by utilizing the new App, and writing the data into a corresponding region of the new App, so that the data in the App of the JAVA CARD is recovered. According to the method, the data in the App are efficiently and securely backed up and recovered.

Description

technical field [0001] The invention relates to a data backup and recovery method, in particular to a JAVACARD-based application internal data backup and recovery method. Background technique [0002] Smart cards integrated with various App applications have brought great convenience to people's lives, and the most important of these smart cards is JAVACARD. JAVACARD has two advantages: it supports multiple uses and repeated use of one card. Among them, supporting one card for multiple purposes means that multiple different applications can exist on the JAVACARD at the same time, so a JavaCard can meet the needs of different functions, for example, it can have an electronic wallet function and an identity authentication function at the same time; repeat Utilization means that the applications on the JAVACARD can be deleted or re-added new applications according to the needs without replacing a new smart card, which greatly enhances the flexibility of smart card applications...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/14
Inventor 刘磊林伟江周向涛张汉就
Owner EASTCOMPEACE TECH
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