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Java card and its application update method, terminal applied to java card, smart card system

An update method and smart card technology, applied in the information field, can solve problems such as increased update costs for developers and affect user experience, and achieve the effect of improving user experience and reducing update costs

Active Publication Date: 2018-10-02
NATIONZ TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, since the read-only memory can only be read, but not erased, when the Applet application masked in the read-only memory has a bug (defect), it cannot be effectively updated, thereby affecting the user experience , the developer can only replace the read-only memory, which also increases the update cost of the developer

Method used

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  • Java card and its application update method, terminal applied to java card, smart card system
  • Java card and its application update method, terminal applied to java card, smart card system
  • Java card and its application update method, terminal applied to java card, smart card system

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Embodiment Construction

[0021] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] see first figure 1 , figure 1 It is a schematic structural diagram of the first embodiment of the java card of the present invention, as figure 1 As shown, the java card 30 of the present invention includes a java platform 40 and a plurality of Applet applications 50 , 60 , 70 .

[0023] The java platform 40 is used to realize the standard application programming interface and operating environment, and encapsulate the hardware information of the smart card system where the java card 30 is located. Applet applications 50, 60, 70 apply a unified application framework, use the interface provided by the java platform 40, develop in java language, and call system services and resources.

[0024] In order to illustrate more clearly, only the Applet application 50 is illustrated in the following embodiments, see below figure 2 , figure 2 It is...

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Abstract

The invention discloses a java card and an application and update method thereof, a terminal and an intelligent card system applied to the java card. The terminal comprises a read-only memory, java card platform real codes of the java card are masked in the read-only memory, functional class library real codes in Applet application real codes of the java card are masked in the read-only memory, and the functional class library real codes comprises multiples classes; an erasable memory, application framework real codes in the Applet application real codes of the java card are stored in the erasable memory in an erasable mode, and the application framework real codes are used for calling classes; a bus, the read-only memory and the erasable memory are in electric connection with the bus. Accordingly, applications which are masked in the read-only memory in the java card can be updated, and therefore bugs exist in the applications of the java card are effectively repaired, the user experience can be improved, and the update cost can be reduced.

Description

technical field [0001] The invention relates to the field of information technology, in particular to a java card and its application updating method, a terminal applied to the java card, and a smart card system. Background technique [0002] A java card is a smart card that can run java program codes. The java card is different from the traditional smart card (Native card), which is divided into two parts: platform and Applet application. . [0003] The storage system of the smart card is mainly composed of read-write memory (RAM), read-only memory (ROM) and erasable programmable memory (EEPROM). Erasable Programmable Memory (EEPROM) has a small capacity and high cost. Relatively speaking, Read Only Memory (ROM) has a large capacity and low cost. At the same time, the runtime data of the java card is stored in EEPROM, and the demand for EEPROM is large. Therefore, many java card developers now mask the platform and Applet applications into ROM to make more space for dow...

Claims

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Application Information

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IPC IPC(8): G06F8/654G06K19/07
Inventor 钟月婷
Owner NATIONZ TECH INC
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