CN105630516A

CN105630516A - Patch upgrading method suitable for application software in JAVA card

Info

Publication number: CN105630516A
Application number: CN201410582663.9A
Authority: CN
Inventors: 林杰; 王涛
Original assignee: Intelligent Science And Technology Ltd Of Card Is Melted In Suzhou
Current assignee: Intelligent Science And Technology Ltd Of Card Is Melted In Suzhou
Priority date: 2014-10-28
Filing date: 2014-10-28
Publication date: 2016-06-01

Abstract

The invention discloses a patch upgrading method suitable for application software in a JAVA card. The application software in the JAVA card is realized by putting an application function in a library package and then a class is created in an APPLET package to inherit a class in the library package; and during subsequent upgrading, only the APPLET package needs to be realized again and a function required to be upgraded is realized in a subclass. For a JAVA card application adopting the scheme, only the APPLET package needs to be deleted during application software upgrading, then a new APPLET package is downloaded, and a JAVA card platform system does not need to be considered at all. An application provider can perform autonomous control and how to store the application software in a memory does not need to be considered, so that the tedious address localization work is removed; and a JAVA card platform system provider does not need to take part in the process, so that the independent intellectual property can be effectively protected.

Description

Suitable in the patch upgrading method of application software in JAVA card

Technical field

The present invention relates to a kind of suitable in the patch upgrading method of application software in JAVA card.

Background technology

JAVA smart card application software in hard mask to the ROM of chip after, if any upgrading demand time, JAVA card plateform system provider can only be given and complete. The application software mask information generated when JAVA card plateform system provider needs according to JAVA card platform mask, to application software patch installing, to complete upgrading task. This mode there is problems in that 1), application provider need provide application source code and upgrading after source code fragment to JAVA card plateform system provider. This relates to the intellectual property of application provider. 2), JAVA card plateform system provider is when patch installing, it is necessary to finding the code storage address of correspondence, this is a quite loaded down with trivial details job, extremely expends energy. Also Just because of this, major applications exploitation side, when running into application and needing upgrading, selects to abandon the card that produces before, and the card that mask is new again. This is a kind of wasting of resources greatly.

Summary of the invention

For the deficiencies in the prior art, it is an object of the invention to provide one and application software provider can be allowed independently to carry out application upgrade, while protection intellectual property, improve upgrading efficiency, the method reducing cost.

For achieving the above object, present invention employs following technical scheme:

Suitable in the patch upgrading method of application software in JAVA card, comprise the steps:

1) the first storehouse bag and the second storehouse bag are set in JAVA card, the APPLET class in JAVA card is individually placed on mono-Ku Baoli;

2) at the bis-Ku Baoli functional realiey class C2 created, class C2 places the program of the APPLET class function realized in step 1);

3) create a class C1 at mono-Ku Baoli, and inherit the functional realiey class C2 in the second storehouse bag;

4) in the building method of APPLET class, create an object of C1 class;

5) in the order distribution processor function of APPLET class, call the function of the order distribution processor of C1 class object;

6) when needs carry out patch renewal, delete the first previous storehouse bag, then again realize needing in the power function updated C1 class in the first storehouse bag, re-download the first storehouse and wrap erasable programmable readable memory.

As the further optimization of such scheme, described step 2) in realize the program of the APPLET class function in step 1) and adopt public and protect modifier.

Beneficial effects of the present invention main manifestations is:

(1) application provider independently completes upgrade job, it is not necessary to JAVA card plateform system provider participates in, and can effectively protect independent intellectual property right;

(2) present invention utilizes JAVA card system platform to install the mechanism deleting application flexibly, and upgrade method is simple, reduces upgrade job amount;

(3) patch data is few, saves EEPROM(erasable programmable readable memory) use in space.

Accompanying drawing explanation

Fig. 1 is the logical structure schematic diagram of one embodiment of the invention.

Detailed description of the invention

Below in conjunction with accompanying drawing and preferred embodiment, the present invention is more specifically described.

As shown in Figure 1, it is adaptable to the patch upgrading method of application software in JAVA card, comprise the steps:

4) in the building method of APPLET class, create an object of C1 class;

Described step 2) in realize the program of APPLET class function in step 1) and adopt public and protect modifier.

In the present embodiment, it is existing that application function is placed on a storehouse bag interior-excess by JAVA card application software, then creates the class of a Similar integral Ku Baoli in APPLET bag; When subsequent upgrade, it is only necessary to again realize APPLET bag, it would be desirable to the function of upgrading realizes in subclass. The JAVA card adopting this scheme is applied, when upgrade application software, it is only necessary to deletes APPLET bag, then downloads new APPLET bag, completely dispenses with consideration JAVA card plateform system. Can by application provider's Autonomous Control, and be how to store in memorizer without the concern for application software, save loaded down with trivial details address location work.

The present embodiment makes not rely on during JAVA card application software upgrade the JAVA card plateform system of bottom, and its ultimate principle is to utilize the property inheritance of JAVA language, builds new subclass on existing parent basis, and subclass can reuse attribute and the method for parent. This technology requires the function that the class interior-excess in storehouse is wrapped now is applied, and uses public and protect modifier as much as possible.

Above in conjunction with accompanying drawing, the preferred embodiment for the present invention is explained in detail, but the invention is not restricted to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, it is also possible to make a variety of changes under the premise without departing from present inventive concept.

Many other can be made without departing from the spirit and scope of the present invention to change and remodeling. Should be appreciated that and the invention is not restricted to specific embodiment, the scope of the invention limits.

Claims

1. it is applicable to the patch upgrading method of application software in JAVA card, it is characterised in that comprise the steps:

4) in the building method of APPLET class, create an object of C1 class;

2. according to claim 1 suitable in the patch upgrading method of application software in JAVA card, it is characterised in that described step 2) in realize the program of APPLET class function in step 1) and adopt public and protect modifier.