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JAVA card object management method and JAVA card

An object management and object technology, applied in the field of smart cards, can solve problems such as waste of card space and limited JAVA card management capabilities

Inactive Publication Date: 2010-07-14
BEIJING WATCH DATA SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this method needs to open a large space on the card as the object handle table, wasting a lot of card space
[0006] In short, the creation of objects in the JAVA card is a large number or even unlimited, and the current JAVA card's ability to manage objects is limited. How to use the limited object management ability of the JAVA card to effectively manage a large number of objects has become a must for people right question

Method used

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  • JAVA card object management method and JAVA card
  • JAVA card object management method and JAVA card
  • JAVA card object management method and JAVA card

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] The JAVA card object management method that the embodiment of the present invention provides, as figure 1 As shown, the method steps include:

[0026] S101. Create objects sequentially in the storage blocks of the JAVA card storage area according to the order in which the application programs apply for the objects, wherein the JAVA card storage area is composed of various storage blocks, and each storage block corresponds to a storage block number.

[...

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Abstract

The embodiment of the invention provides a JAVA card object management method and a JAVA card, relating to intelligent card field. Limit object management capacity of JAVA card can be utilized to manage great amount of objects efficiently. The solution scheme is as follows: creating objects in memory chunks in a JAVA card memory area in sequence according to the sequence in which an application program applies for objects, wherein, the JAVA card memory area is composed of a plurality of memory chunks, each memory chunk corresponds to a memory chunk number; allocating absolute handles for the objects in sequence according to the creation sequence of the objects, wherein, the absolute handles are the creation sequence number of the objects. Another scheme is as follows: determining the memory chunk in which the object to be searched is located according to the absolute handle of the object to be searched; and determining the object to be searched in the memory chunk according to the absolute handle of the object to be searched.

Description

technical field [0001] The invention relates to the field of smart cards, in particular to a JAVA card object management method and a JAVA card. Background technique [0002] JAVA card is a kind of contact microprocessor smart card that can run JAVA program, and the program running in the card is called Applet. Applet can be dynamically loaded to the JAVA card. The API (Application Programming Interfaces, Application Programming Interface) of the JAVA card defines a special subset of the JAVA language for the smart card. Most of the smart card manufacturers now support the JAVA card API. The appearance of JAVA card and JAVA card API makes the programming of smart card fast and easy, and the Applet of these cards can run on any smart card that supports JAVA card API. [0003] For the JAVA card, the biggest problem is space and time. The on-chip space of the JAVA card is generally hundreds of K, and the CPU is generally 8 or 16 bits, so the program written on the JAVA card ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30G06K19/07
Inventor 王强潘见仁徐达兴杨宁
Owner BEIJING WATCH DATA SYST
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