CN103309696A - Method and device for updating Java card extended library, and Java card - Google Patents
Method and device for updating Java card extended library, and Java card Download PDFInfo
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- CN103309696A CN103309696A CN2012100687999A CN201210068799A CN103309696A CN 103309696 A CN103309696 A CN 103309696A CN 2012100687999 A CN2012100687999 A CN 2012100687999A CN 201210068799 A CN201210068799 A CN 201210068799A CN 103309696 A CN103309696 A CN 103309696A
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Abstract
The invention discloses a method for updating a Java card extended library. The method comprises the following steps: A, obtaining a reference relationship between an extended library to be updated and an application and/or embodiment and/or a second extended library; obtaining a first mapping relationship of all methods and memory addresses thereof in the extended library to be updated; B, updating the extended library, and establishing a second mapping relationship between all the methods in the extended library after being updated and memory addresses thereof according to the memory state of the extended library after being updated; C, updating the corresponding information of the memory addresses aiming at the methods in the extended library in the application and/or embodiment and/or extended library according to the reference relationship and the second mapping relationship. According to the method, the files of the extended library in the Java card can be updated under the condition that the application and embodiment are not deleted. Moreover, the invention also discloses a device for updating the Java card extended library, and a Java card.
Description
Technical field
The method that the present invention relates to a kind of Java of renewal Card expanding library belongs to the data service field.
Background technology
Java card is that Sun Microsystems is the open standard that smart card development platform is formulated.There is Java applet on the smart card that uses the Java card platform to create.Also can be added to applet on the card after the card distribution or revise and block existing applet.They are stored in data in the integrated microprocessor chip.Then applet is downloaded in the internal memory of microprocessor, is moved by Java Virtual Machine.Be similar to the development technique MULTOS of another smart card, Java card is mounted a plurality of application programs and independently of one another coexistence.Each applet by firewall protection to safeguard its integrality and to prevent from disturbing.Application program can dynamically be upgraded.
As shown in Figure 1, comprise java standard library (Standard Library) and expanding library (Extensional Library) in the Java card, use (Applet) and can call by reference API (the Application Programming Interface) interface that the storehouse provides, create one or more examples (Instance), wherein, Fig. 2 has represented a kind of pie graph of Java card of standard, it comprises: card hardware (SMART CARD HW AND NATIVE SYSTEM), Java card virtual machine (Java Card VM BYTECODE INTERETER), nation method (NATIVE METHOD), system library (SYSTEM CLASSES), installation manager (INSTALLER), standard Java card API (FRAMEWORK CLASSES APIS), expanding library (INDUSTRY SPECIFIC EXTENSIONS), wherein, usually, exist applet management in the system library, transaction management, I/O network communication and other services, usually, the API of Java card is the special subset that smart card has been specified a Java language, owing to the use of Java Virtual Machine, above-mentioned applet can access cross-platform operation simultaneously.
Wherein, Java Virtual Machine has been realized the unification of card interface and the unification of programming language, wherein, api interface mainly is responsible for carrying out Java card applet and providing applet to carry out needed environment, and wherein, expanding library then is the class that the service side provides, so that enterprise and company can provide one's own service routine,, these classes are called for short method (method) in this application, and there is corresponding address in it in Java card; And Java card applet namely is the application of exploitation, wherein, method in each applet and the expanding library has certain adduction relationship, and the above-mentioned applet by reference address information of method carries out relevant method, wherein, the execution environment of Java card is not supported multithreading, thus once can only carry out an Applet, and the obstruct of fire wall is arranged between each applet.
At present, if will upgrade expanding library in the Java card, must delete first example and the application of quoting it.As shown in Figure 3, as upgrading expanding library, example (Instance) be must delete first, Applet2, Applet3 next deleted, and then the deletion expanding library; Reinstall expanding library, Applet2, Applet3 are installed, Instance is installed.
Wherein, in the installation process in storehouse, an adduction relationship table need to be set, convert the name in storehouse to referenced items, convert method to actual call address; Java applet needs the content in the corresponding list item of deletion when upgrading the storehouse.
From foregoing description, can find the problem that prior art exists:
1) expanding library to be upgraded, example, the application/expanding library of quoting this expanding library must be deleted first;
2) to delete example, must back up first (moving out) instance data, after reinstalling example, recover again (moving into) instance data; When expanding library is widely applied and example when quoting, it is unusually loaded down with trivial details that this operation will become, and even can not carry out.
Summary of the invention
The technical problem to be solved in the present invention is to need not to delete first example and the application of quoting it when upgrading expanding library, and the method can not cause Java card operation irregularity to occur because of upgrading expanding library.
Wherein, according to one object of the present invention, the invention provides a kind of Java card expanding library update method, comprising:
A, obtain the adduction relationship of expanding library to be updated and application and/or example and/or the second expanding library; Obtain all methods in the described expanding library to be updated and the first mapping relations of memory address thereof;
B, upgrade described expanding library, set up all methods in the expanding library after upgrading and the second mapping relations between its memory address according to the store status of the expanding library after upgrading;
C, according to described adduction relationship and the second mapping relations, upgrade in above-mentioned application and/or example and/or the expanding library for the corresponding storage address information of the method in the described expanding library.
Wherein, preferably, in steps A, also comprise: forbid above-mentioned application and/or example and/or the operation of the second expanding library in described Java card.
Wherein, preferably, one or more method in the direct or described expanding library of indirect referencing of described application and/or example and/or the second expanding library, wherein, described application and/or example and/or the second expanding library by reference storage address information of described method are carried out corresponding method.
Wherein, preferably, in the steps A, specifically comprise:
All application, expanding library and example take the first expanding library as root on the traversal Java card obtain and preserve the adduction relationship between described application, the second expanding library and example and the described expanding library;
According to the method in storage acquisition of information first expanding library of the first expanding library and the first mapping relations between its memory address.
Wherein, preferably, among the step C, specifically comprise:
Obtain all application, expanding library and the example of quoting described the first expanding library according to described adduction relationship; According to described the second mapping relations the old physical address of the method quoted in described application, expanding library and the example is revised as new physical address, the status modifier with these application, expanding library and example is initiate mode simultaneously.
Wherein, preferably, further comprise:
Check the method for correspondence in application and/or example and/or the second expanding library and the corresponding relation between the method in the first expanding library after the renewal;
Wherein, when not having corresponding method in the first expanding library after described renewal, send prompting Java expanding library and upgrade failed warning message.
Wherein, preferably, among the step C, after above-mentioned storage address information renewal is finished, also comprise:
Described application and/or example and/or the second expanding library carry out corresponding application and/or example and/or the operation of the second expanding library in Java card according to the address information after upgrading.
The application is by the adduction relationship of said method, and then replace the old address information of corresponding method, thereby so that the expanding library after upgrading can be quoted by original application and/or example and/or other expanding libraries, this kind method has overcome prior art must delete the shortcoming that old application, example and expanding library side can upgrade expanding library, has good technique effect.
In addition, the present invention also provides expanding library updating device in a kind of Java card, comprising:
The incidence relation administrative unit is for the adduction relationship that obtains the first expanding library to be updated and application and/or example and/or the second expanding library;
The address relationship acquiring unit is used for obtaining the method for the first expanding library and the first mapping relations between the memory address thereof;
The expanding library installation unit is used for deleting the first old expanding library and the first new expanding library being installed;
Described address relationship acquiring unit also is used for setting up the method for the first expanding library after upgrading and the second mapping relations between its memory address according to the storage information of the first expanding library after upgrading;
The address information updating block is used for according to described adduction relationship and the second mapping relations, upgrades in above-mentioned application and/or example and/or the second expanding library for the corresponding storage address information of method in described the first expanding library.
Wherein, preferably, also comprise: the condition managing unit is used for forbidding or starting the operation of above-mentioned application and/or example and/or the second expanding library.
Wherein, preferably, one or more method in direct or described the first expanding library of indirect referencing of described application and/or example and/or the second expanding library.
Wherein, preferably, also comprise: the application process memory manage unit is used for preserving the storage address information that described application and/or example and/or the second expanding library include described one or more method.
Wherein, preferably, also comprise:
The corresponding relation detecting unit is used for checking the method for application and/or example and/or the second expanding library correspondence and the corresponding relation between the method in the first expanding library after the renewal;
The information alarm unit is used for when there is not corresponding method in the first expanding library after described renewal, sends prompting Java expanding library and upgrades failed warning message.
Other features and advantages of the present invention will be set forth in the following description, and, partly from instructions, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the instructions of writing, claims and accompanying drawing.
Description of drawings
Below in conjunction with accompanying drawing the present invention is described in detail, so that above-mentioned advantage of the present invention is clearer and more definite.
Fig. 1 is the schematic diagram of a Java card in the prior art;
Fig. 2 is the structural representation of a Java card in the prior art
Fig. 3 is the renewal schematic diagram of expanding library in Java card in the prior art;
Fig. 4 is the schematic flow sheet of expanding library update method in the Java card of the present invention
Fig. 5 is the update method schematic flow sheet of expanding library in the Java card of one embodiment of the invention;
Fig. 6 is the structural representation of the updating device of expanding library in the Java card in the one embodiment of the invention.
Embodiment
The present invention will be described in detail below in conjunction with the drawings and specific embodiments.
Embodiment of the method one:
Fig. 4 is the schematic flow sheet of expanding library update method in the Java card of the present invention;
As shown in Figure 4, shown in expanding library update method in the Java card, mainly comprise:
S101: the adduction relationship that obtains expanding library to be updated and application and/or example and/or the second expanding library; Comprise: all application, expanding library and example take the first expanding library as root on the traversal Java card, obtain and preserve the adduction relationship between described application, the second expanding library and example and the described expanding library;
S102: obtain all methods in the described expanding library to be updated and the first mapping relations of memory address thereof; Comprise: according to the method in storage acquisition of information first expanding library of expanding library and the first mapping relations between its memory address.
S103: upgrade described expanding library,
Comprise: delete old expanding library and replace old expanding library with new expanding library, wherein, described new expanding library has all methods of old expanding library;
S104: according to all methods in the expanding library after the store status foundation renewal of the expanding library after upgrading and the second mapping relations between its memory address;
S105: according to described adduction relationship and the second mapping relations, upgrade in above-mentioned application and/or example and/or the expanding library for the corresponding storage address information of the method in the described expanding library.
Wherein, the application is by the adduction relationship of said method, and then replace the old address information of corresponding method, thereby so that the expanding library after upgrading can be quoted by original application and/or example and/or other expanding libraries, this kind method has overcome prior art must delete the shortcoming that old application, example and expanding library side can upgrade expanding library, has good technique effect.
Wherein, be understandable that, before S101, need the above-mentioned application of forbidding and/or example and/or the operation of the second expanding library in described Java card, so that obtain and preserve the corresponding relation between above-mentioned adduction relationship and/or address and the method.
One or more method in the direct or described expanding library of indirect referencing of wherein said application and/or example and/or the second expanding library, wherein, described application and/or example and/or the second expanding library by reference the storage address information of described method carry out corresponding method.
Wherein, among the S105, specifically comprise:
Obtain all application, expanding library and the example of quoting described the first expanding library according to described adduction relationship; According to described the second mapping relations the old physical address of the method quoted in described application, expanding library and the example is revised as new physical address, the status modifier with these application, expanding library and example is initiate mode simultaneously.
In addition, in order to reduce as far as possible the frequency make mistakes, renewal is finished after or before upgrading, need to check the corresponding relation between the method in the first expanding library after method corresponding in application and/or example and/or the second expanding library and the renewal;
Wherein, when not having corresponding method in the first expanding library after described renewal, send prompting Java expanding library and upgrade failed warning message.
And after above-mentioned storage address information change was finished, described application and/or example and/or the second expanding library carried out corresponding application and/or example and/or the operation of the second expanding library in Java card according to the address information after upgrading.
Wherein, the present invention has taked after the above-mentioned update method, and it need not to delete first example and the application of quoting it when upgrading expanding library; And this invention can not cause Java card operation irregularity to occur because of upgrading expanding library, has good technological merit.
Embodiment of the method two:
Wherein, the present invention is described in detail in conjunction with embodiment more specifically; Fig. 5 is the update method schematic flow sheet of expanding library in the Java card of one embodiment of the invention.
Wherein, described method comprises two main steps, and wherein, S101～S102 is mainly concerned with and upgrades expanding library operation before, and is specific as follows:
The modification state: checking upper all application, expanding library and the example take this expanding library as root of card, is disabled status with the status modifier of these application, expanding library and example;
Namely, S1011: the adduction relationship between the method in the preservation storehouse and the actual address in storehouse, namely which application, expanding library have been quoted this expanding library, and above-mentioned information have been put in the adduction relationship table;
S1022: preserve the method for this expanding library and the mapping relations table of old true address, that is: method-address old corresponding relation; The deletion expanding library.
Wherein, so-called atomic operation refers to aforesaid operations or all runs succeeded, or does not carry out, and the situation that half can't recover can not occur carrying out, lower with.
Step S103～S105 relates to the key step of upgrading expanding library, wherein, in a specific embodiment, the atomic operation below main the execution:
Expanding library is installed;
Form method and the mapping relations table of new real address, that is: method-address new in this expanding library;
According to the adduction relationship table of preserving before, application and the expanding library of this expanding library of traversal all references are revised as address new with address old;
Be initiate mode with the status modifier of these application, expanding library and example.
Wherein, be understandable that equally, be to avoid that upgrading appears in the method that causes original application, expanding library to call in the storehouse or the situation of deletion because upgrading, must before the storehouse is installed, carry out and check operation, then point out and upgrade unsuccessfully if above-mentioned situation occurs.
Wherein, this case has improved the update method in the storehouse of Java card, need not to delete too much application and personal data, it has solved the mechanism of upgrading the storehouse in the existing java applet, order deleting mechanism not according to existing tree structure is applicable to special scenes, and good advantage is arranged.
Device embodiment one:
Wherein, the invention also discloses a kind of Java card, it comprises one or more expanding libraries and application and/or example, and, also be provided with an expanding library updating device, owing to upgrading one or more expanding library in the Java card in the situation that do not delete application.
Wherein, Fig. 6 is the structural representation of the updating device of expanding library in the Java card in the one embodiment of the invention;
As shown in Figure 6, described updating device specifically comprises:
The incidence relation administrative unit is for the adduction relationship that obtains the first expanding library to be updated and application and/or example and/or the second expanding library;
The address relationship acquiring unit is used for obtaining the method for the first expanding library and the first mapping relations between the memory address thereof;
The expanding library installation unit is used for deleting the first old expanding library and the first new expanding library being installed;
Described address relationship acquiring unit also is used for setting up the method for the first expanding library after upgrading and the second mapping relations between its memory address according to the storage information of the first expanding library after upgrading;
The address information updating block is used for according to described adduction relationship and the second mapping relations, upgrades in above-mentioned application and/or example and/or the second expanding library for the corresponding storage address information of method in described the first expanding library.
Wherein, also comprise: the condition managing unit is used for forbidding or starting the operation of above-mentioned application and/or example and/or the second expanding library.
Wherein, one or more method in direct or described the first expanding library of indirect referencing of described application and/or example and/or the second expanding library.
Wherein, also comprise: the application process memory manage unit is used for preserving the storage address information that described application and/or example and/or the second expanding library include described one or more method.
Wherein, also comprise:
The corresponding relation detecting unit is used for checking the method for application and/or example and/or the second expanding library correspondence and the corresponding relation between the method in the first expanding library after the renewal;
The information alarm unit is used for when there is not corresponding method in the first expanding library after described renewal, sends prompting Java expanding library and upgrades failed warning message.
Wherein, the present invention has taked after the above-mentioned updating device, and it need not to delete first example and the application of quoting it when upgrading expanding library; And this invention can not cause Java card operation irregularity to occur because of upgrading expanding library, has good technological merit.
Wherein, one of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of programmed instruction, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: ROM (read-only memory) (Read Only Memory, abbreviation ROM), the various media that can be program code stored such as random access memory (Random Access Memory is called for short RAM), magnetic disc, terminal phone software or CD.
It should be noted that at last: the above only is the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment the present invention is had been described in detail, for a person skilled in the art, it still can be made amendment to the technical scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characterictic wherein is equal to replacement.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. Java card expanding library update method comprises:
A, obtain the adduction relationship of expanding library to be updated and application and/or example and/or the second expanding library; Obtain all methods in the described expanding library to be updated and the first mapping relations of memory address thereof;
B, upgrade described expanding library, set up all methods in the expanding library after upgrading and the second mapping relations between its memory address according to the store status of the expanding library after upgrading;
C, according to described adduction relationship and the second mapping relations, upgrade in above-mentioned application and/or example and/or the expanding library for the corresponding storage address information of the method in the described expanding library.
2. Java card expanding library update method according to claim 1 in steps A, also comprises: forbid above-mentioned application and/or example and/or the operation of the second expanding library in described Java card.
3. Java card expanding library update method according to claim 1 and 2, it is characterized in that, one or more method in the direct or described expanding library of indirect referencing of described application and/or example and/or the second expanding library, wherein, described application and/or example and/or the second expanding library by reference the storage address information of described method carry out corresponding method.
4. Java card expanding library update method according to claim 1 is characterized in that, in the steps A, specifically comprises:
All application, expanding library and example take the first expanding library as root on the traversal Java card obtain and preserve the adduction relationship between described application, the second expanding library and example and the described expanding library;
According to the method in storage acquisition of information first expanding library of the first expanding library and the first mapping relations between its memory address.
5. Java card expanding library update method according to claim 1 is characterized in that, among the step C, specifically comprises:
Obtain all application, expanding library and the example of quoting described the first expanding library according to described adduction relationship;
According to described the second mapping relations the old physical address of the method quoted in described application, expanding library and the example is revised as new physical address, the status modifier with these application, expanding library and example is initiate mode simultaneously.
6. Java card expanding library update method according to claim 1 is characterized in that, further comprises:
Check the method for correspondence in application and/or example and/or the second expanding library and the corresponding relation between the method in the first expanding library after the renewal;
Wherein, when not having corresponding method in the first expanding library after described renewal, send prompting Java expanding library and upgrade failed warning message.
7. Java card expanding library update method according to claim 6 is characterized in that, after above-mentioned storage address information renewal is finished, also comprises:
Described application and/or example and/or the second expanding library carry out corresponding application and/or example and/or the operation of the second expanding library in Java card according to the address information after upgrading.
8. expanding library updating device in the Java card comprises:
The incidence relation administrative unit is for the adduction relationship that obtains the first expanding library to be updated and application and/or example and/or the second expanding library;
The address relationship acquiring unit is used for obtaining the method for the first expanding library and the first mapping relations between the memory address thereof;
The expanding library installation unit is used for deleting the first old expanding library and the first new expanding library being installed;
Described address relationship acquiring unit also is used for setting up the method for the first expanding library after upgrading and the second mapping relations between its memory address according to the storage information of the first expanding library after upgrading;
The address information updating block is used for according to described adduction relationship and the second mapping relations, upgrades in above-mentioned application and/or example and/or the second expanding library for the corresponding storage address information of method in described the first expanding library.
9. Java card expanding library updating device according to claim 8 is characterized in that, also comprises: the condition managing unit is used for forbidding or starting the operation of above-mentioned application and/or example and/or the second expanding library.
10. Java card expanding library updating device according to claim 9 is characterized in that, one or more method in direct or described the first expanding library of indirect referencing of described application and/or example and/or the second expanding library.
11. Java card expanding library updating device according to claim 10, it is characterized in that, also comprise: the application process memory manage unit is used for preserving the storage address information that described application and/or example and/or the second expanding library include described one or more method.
12. Java card expanding library updating device according to claim 10 is characterized in that, also comprises:
The corresponding relation detecting unit is used for checking the method for application and/or example and/or the second expanding library correspondence and the corresponding relation between the method in the first expanding library after the renewal;
The information alarm unit is used for when there is not corresponding method in the first expanding library after described renewal, sends prompting Java expanding library and upgrades failed warning message.
13. a Java card comprises one or more expanding libraries and application and/or example, it is characterized in that, also is provided with the arbitrary described expanding library updating device of claim 8～12.
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| CN201210068799.9A CN103309696B (en) | 2012-03-15 | 2012-03-15 | Method and device for updating Java card extended library, and Java card |
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| CN103761126A (en) * | 2014-01-07 | 2014-04-30 | 中国神华能源股份有限公司 | Method and device for upgrading application program |
| CN104331275A (en) * | 2014-08-26 | 2015-02-04 | 大唐微电子技术有限公司 | JavaCard and method for patching application of JavaCard |
| CN104793964A (en) * | 2014-01-16 | 2015-07-22 | 国民技术股份有限公司 | Java card and application and update method thereof, terminal and intelligent card system applied to java card |
| CN105630516A (en) * | 2014-10-28 | 2016-06-01 | 苏州融卡智能科技有限公司 | Patch upgrading method suitable for application software in JAVA card |
| CN106227576A (en) * | 2016-08-18 | 2016-12-14 | 北京智芯微电子科技有限公司 | The function realizing method of a kind of Java card application and device |
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| Publication number | Publication date |
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| CN103309696B (en) | 2017-02-08 |
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