Java card convenient for application upgrading and Java card application upgrading method

A technology of application upgrade and card application, which is applied in the field of Java Card, can solve the problems that cannot be eliminated, and achieve the effect of preventing abnormalities
CN114489593APending Publication Date: 2022-05-13无锡融卡科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
无锡融卡科技有限公司
Publication Date
2022-05-13

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Abstract

The invention discloses a Java card convenient for application upgrading and a Java card application upgrading method, at least one business application responsible for business logic and at least one data application responsible for data access run in the Java card, and data of the business application is stored in the data application in real time; and after the service application is upgraded, the upgraded service application obtains corresponding data from the corresponding data application by calling the shared interface. The Java card provided by the invention does not need a card COS to have an upgrading function defined by a GP, and is relatively friendly to the realization of functions on existing equipment. Through the design of the business application and the data application, the business and the data are separated, and the processing method of data protection in the business application upgrading process is realized. By adopting the application designed by the scheme, the target data can be quickly retrieved, and other applications running on the platform cannot be influenced during upgrading. Data storage is independent of business application, and business logic and code exceptions can be prevented from influencing the correctness of data in a certain program.
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Description

technical field

[0001] The invention relates to the technical field of Java cards, in particular to a Java card and a Java card application upgrading method which are convenient for application upgrading. Background technique

[0002] A Java Card application is an application written in the JAVA language and running on a Java Card. The writing method of this application needs to comply with Sun's Java Card API specification. In Sun's Java Card API specification, there is an abstract class of Java Card application , this abstract class defines several abstract methods, and the application needs to implement the abstract methods.

[0003] When a Java Card application business project is released, after the application is downloaded and installed, some initialization data related to the user needs to be written into the application. This process is called personalization of the application, and these data are called personalization data. After the application is released, thes...

Claims

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