CN107038038B - Method for operating large-capacity USIM applet - Google Patents
Method for operating large-capacity USIM applet Download PDFInfo
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- CN107038038B CN107038038B CN201610075814.0A CN201610075814A CN107038038B CN 107038038 B CN107038038 B CN 107038038B CN 201610075814 A CN201610075814 A CN 201610075814A CN 107038038 B CN107038038 B CN 107038038B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/61—Installation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/61—Installation
- G06F8/62—Uninstallation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/72—Mobile telephones; Cordless telephones, i.e. devices for establishing wireless links to base stations without route selection
- H04M1/724—User interfaces specially adapted for cordless or mobile telephones
- H04M1/72403—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality
- H04M1/72406—User interfaces specially adapted for cordless or mobile telephones with means for local support of applications that increase the functionality by software upgrading or downloading
Abstract
The invention discloses a method for operating a large-capacity USIM applet; the method relates to a method for storing and running small application programs on a large-capacity USIM (Universal Subscriber Identity Module) in a mass storage space, and the method saves links such as over-the-air downloading and the like by utilizing the characteristics of the mass storage device, provides a feasible solution for pre-installing more small application programs on the large-capacity USIM and realizing off-line installation of the small application programs, and expands the application range; the method for operating the large-capacity USIM applet described in the invention mainly comprises two parts, namely an applet storing stage and an applet executing stage.
Description
Technical Field
The invention relates to the field of integrated circuit large-capacity USIM cards, in particular to a method for operating a large-capacity USIM applet.
Background
In the current era of developed communication technology, a USIM card is generally used as a product for identifying the identity of a user in a mobile communication device, but because the USIM has a limited storage space and cannot be preloaded with too many applets, when an applet that is not available on the USIM needs to be installed or executed, an over-the-air download or field download mode to a business hall needs to be adopted, which causes inconvenience in use for a large number of users.
However, the large-capacity USIM has a mass storage space, a considerable number of applets can be preset in the large-capacity USIM, once any one of the applets stored in the mass storage space needs to be installed on a Java Card platform, the large-capacity USIM does not need to be downloaded through a mobile network or installed in a business hall, and the pre-stored applets are directly obtained from the mass storage space and run in the large-capacity USIM, so that offline installation is realized, and the application function of the USIM is expanded, which provides convenience for the use of a large number of users.
Disclosure of Invention
The invention aims to provide a method for operating a large-capacity USIM applet, because of having a large-capacity storage area with a larger space, the large-capacity USIM can pre-download a plurality of applets, when the installation or calling is needed, the applets can be read from the large-capacity storage area and installed in the large-capacity USIM for execution.
The invention relates to a method for operating a high-capacity USIM applet, which comprises two parts, namely an applet storing stage and an applet executing stage, wherein the applet storing stage is to download an applet into a high-capacity USIM through a communication interface and store the applet in a smart card partition in a mass storage space, and the method comprises the following specific implementation steps:
1) the large-capacity USIM supports ISO/IEC7816 and USB communication interfaces, and if the large-capacity USIM is connected with the ISO/IEC7816 interfaces of hosts such as production equipment or mobile phone terminals, the large-capacity USIM continuously performs data interaction with the hosts on the contact type communication interfaces; if the USIM is connected with a USB interface of a host such as production equipment, a mobile phone terminal or a working computer, the high-capacity USIM can continuously perform data interaction with the host on a USB communication interface by using a CCID protocol;
2) once the contact type communication interface or the USB CCID communication interface is successfully connected, the host can access the intelligent card partition in the mass storage space of the high-capacity USIM through an instruction;
3) the host sends a downloading instruction to the high-capacity USIM, and stores a plurality of small application programs into the smart card partition in the mass storage space;
4) if the large-capacity USIM is a Java Card, the host computer uses a standard download instruction in GP (Global Platform, an inter-industry international standard organization dedicated to developing, formulating and issuing technical standards of a security chip) specification to write a Java Applet into a smart Card partition;
5) if the large-capacity USIM is a Native Card (local Card), the host computer uses a private download instruction which can be identified by both parties, and writes the applet codes into the partition of the intelligent Card;
wherein, the applet executing stage is to read the applet from the smart card partition of the mass storage space and load and run the applet in the running space of the on-chip operating system of the large-capacity USIM, and the specific implementation steps are as follows:
1) if the high capacity USIM is Java Card:
a) the host sends an installation instruction in GP (Global platform) specification to the USIM with large capacity;
b) the high-capacity USIM accesses the smart card partition in the mass storage space, finds out the small application program to be installed through searching the application identification, and reads the small application program from the smart card partition into an operating system on the high-capacity USIM chip;
c) the host sends an activation instruction in gp (global platform) specification to select an applet, and the high-capacity USIM on-chip operating system executes the selected applet on its running space, such as NVM (Non-Volatile Memory) or RAM (Random-Access Memory);
d) when the host sends a deactivation or uninstallation instruction in a GP (Global platform) specification, the applet executed in the running space of the high-capacity USIM on-chip operating system is stopped, cancelled or deleted, and the uninstalled applet is still stored in the smart card partition of the mass storage space;
2) if the high-capacity USIM is a Native Card:
a) the host sends a private instruction for executing the applet to the high-capacity USIM;
b) the high-capacity USIM accesses the smart card partition in the mass storage space, finds out the small application program to be called through searching the application identifier, and reads the small application program from the smart card partition into an on-chip operating system of the high-capacity USIM;
c) the large-capacity USIM on-chip operating system executes the applet on its running space, such as NVM (Non-Volatile Memory) or RAM (Random-Access Memory);
d) when the host sends an application ending instruction, the small application programs executed in the running space of the high-capacity USIM on-chip operating system are stopped and deleted from the on-chip operating system, and the small application programs which are not read are still stored in the smart card partition of the mass storage space.
Preferably, the high-capacity USIM is a subscriber identity card, which supports both traditional telecommunication services and mass storage functions.
Preferably, the large-capacity USIM supports two communication interfaces of ISO/IEC7816 and USB (Universal Serial Bus), and accesses different partitions of the mass storage space through the two communication interfaces.
Preferably, the large-capacity USIM is a USB composite device, and after connecting a USB Interface of a host such as a mobile phone terminal or a work computer, the USIM can be recognized as a slave device as a CCID (USB Chip/Smart Card Interface device) and a USB mass storage device having a plurality of memory partitions.
Preferably, the large-capacity USIM has a plurality of memory partitions, each memory partition has different access rights and application functions, one of the memory partitions serves as a smart card partition and provides access to the telecommunication service function, and the applet is stored in the smart card partition.
Preferably, the operating system on the large-capacity USIM is an operating system running in the large-capacity USIM, and the operating system on the large-capacity USIM has two implementation modes, one is a Java Card platform, and the other is a Native Card platform.
Preferably, the Java Card Platform is implemented using Java Card Platform specification (Java Card) as a standard, provides a standard application function interface, and calls different standard application function interfaces to complete a target operation when any applet runs on the Java Card Platform, so that the same USIM implements different application functions.
Preferably, the Native Card platform has no unified implementation standard, the connection between the Native Card platform and the applet is a fixed interface, and only a plurality of fixed applets can be run on the Native Card platform, and the USIM can only realize a plurality of fixed application functions.
Preferably, the Applet is a Java Applet running on a Java Card, and may dynamically perform downloading, installing, activating, deactivating and uninstalling operations on a Java Card platform, and after being activated, the Applet may receive an externally transmitted command and execute a corresponding code of the Applet.
Preferably, the applet is a plurality of fixed applets running on a Native Card platform, and does not need to be downloaded, installed or activated, and the Native Card platform processes a received external command and directly calls a corresponding interface or code of the applet to realize the function of the application.
Preferably, in the applet storing stage, a host such as a production device or a working computer may be connected to the large-capacity USIM through an ISO/IEC7816 or USB CCID interface, and may access the smart card partition in the large-capacity storage area through the interface, write the applet into the smart card partition using a download instruction, and distinguish the location where the different applet is stored through different application tags.
Preferably, in the applet executing stage, the large-capacity USIM receives an instruction sent by the host from an ISO/IEC7816 or USB CCID interface, and requests to install or call a certain applet, at this time, the operating system on the large-capacity USIM chip retrieves an application tag from a smart Card partition in the mass storage space of the large-capacity USIM, reads the applet, and installs the applet in the running space of the large-capacity USIM, so as to execute the applet on a Java Card platform or a Native Card platform.
The invention adopts the small application program storage stage and the small application program execution stage, so that the beneficial effects are obtained that the small application programs which are pre-stored are directly obtained from the mass storage space through mobile network downloading or installation in a business hall, and the small application programs are operated in a large-capacity USIM, thereby realizing off-line installation, simultaneously expanding the application function of the USIM, and providing convenience for the use of the majority of users.
The invention is further described with reference to the following figures and detailed description.
Drawings
Fig. 1 is a flowchart of the work flow of the storage and execution phase of a high capacity USIM implemented as a Java Card in accordance with an embodiment of the present invention.
Fig. 2 is a work flow diagram of the storage and execution stages of a high-capacity USIM implemented as a Native Card (local Card), according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1, it is a work flow diagram of the storage and execution stage of the USIM implemented as a Java Card in the embodiment of the present invention; the high-capacity USIM is realized as a storage and execution stage of Java Card (Java Card) and comprises the following specific steps: (1) the life cycle of the applet begins from the start of downloading to the smart card partition of the high capacity USIM; (2) firstly, connecting a high-capacity card with a host computer, and establishing an interface channel; (3) the host sends a GP (Global platform) downloading instruction on an ISO/IEC7816 or USB CCID interface; (4) in the downloading process, the small application program is distributed with an application identifier and is written together with the small application program; (5) writing the small application program into a smart card partition of a high-capacity USIM; (6) is the download completed? After all downloading operations are completed, the applets are stored in the smart card partition, and can be always stored even if the high-capacity USIM loses power supply, which usually occurs in the production stage of the high-capacity USIM; (7) in the above step, when the downloading is completed and the large-capacity USIM is applied at the client, when an externally sent gp (global platform) installation instruction is received, the applet is required to be installed; (8) then the on-chip operating system of the high capacity USIM will retrieve the application identification of the applet within the smartcard partition; (9) after the application identification is retrieved, the Java Applet is read to the on-chip operating system; (10) then writing the Java Applet into the operating space (NVM or RAM) of the USIM with large capacity, and temporarily storing the Java Applet into the operating space; (11) the USIM with large capacity receives a GP (Global platform) activation instruction; (12) the Java Applet Applet is executed and responds to the subsequently received related instructions; (13) if the host sent the command is a gp (global platform) deactivate or unload command? (14) If the command is received, the Java Applet small application program is logged out of the running space and deleted; (15) end, but the code of the Java Applet is not deleted from the smart card partition.
As shown in fig. 2, the high-capacity USIM implemented in the present invention is a work flow diagram of the storage and execution stage of a Native Card; the specific steps of the storage and execution stage of the high-capacity USIM realized as a Native Card (local Card) are as follows: (1) at first, because a Native Card (local Card) is not an international universal standard platform mechanism, the instructions sent in the data interaction process are all private instructions mutually acknowledged by a host and a large-capacity USIM; (2) firstly, connecting a high-capacity USIM with a host (ISO/IEC 7816 or USB CCID interface) and establishing an interface channel; (3) the host computer downloads the instruction on an ISO/IEC7816 or USB CCID interface in a private way; (4) differentiating between different applet codes by assigning an application identity to the applet; (5) writing the small application program into a smart card partition of a high-capacity USIM; (6) is the download completed? After the downloading step of the small application program is completed, the small application program is stored in the partition of the intelligent card; (7) when the high-capacity USIM receives an instruction for calling the applet program sent from the outside; (8) under the condition of finishing the downloading, the on-chip operating system of the high-capacity USIM searches the application identifier of the applet program in the partition of the smart card; (9) after the application identification is retrieved, reading the code of the small application program to an on-chip operating system; (10) writing the small application program into the operation space of the high-capacity USIM; (11) saving the small application program in the running space and calling and executing the small application program; (12) if the host sends a private instruction of application termination to the high-capacity USIM, the applet does not need to be called any more; (13) if the applet is not called any more, the applet is deleted from the running space of the high-capacity USIM on-chip operating system; (14) and ending, but the small application program still remains in the smart card partition and waits for being called next time.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the present invention is not limited to the embodiments disclosed, but is intended to cover various equivalents and substitutions which may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (12)
1. A method for operating a high-capacity USIM applet comprises two parts, namely an applet storing stage and an applet executing stage,
the applet storing stage is to download the applet into the high-capacity USIM through a communication interface and store the applet in the smart card partition in the mass storage space, and the specific implementation steps are as follows:
1) the large-capacity USIM supports an ISO/IEC7816 and USB communication interface, and if the large-capacity USIM is connected with the ISO/IEC7816 interface of the host, the large-capacity USIM continuously performs data interaction with the host on the contact type communication interface; if the USIM is connected with the USB interface of the host, the high-capacity USIM continuously performs data interaction with the host on the USB communication interface by using a CCID protocol;
2) once the contact type communication interface or the USB CCID communication interface is successfully connected, the host can access the intelligent card partition in the mass storage space of the high-capacity USIM through an instruction;
3) the host sends a downloading instruction to the high-capacity USIM, and stores a plurality of small application programs into the smart card partition in the mass storage space;
4) if the large-capacity USIM is a Java Card, the host computer uses a standard downloading instruction in a Global Platform specification to write a Java Applet into the partition of the smart Card;
5) if the large-capacity USIM is a Native Card, the host computer uses a private download instruction which can be identified by both parties, and writes the applet codes into the smart Card partition;
in the applet executing stage, the applet is read from the smart card partition of the mass storage space and is loaded and operated in the operation space of the on-chip operating system of the high-capacity USIM, and the specific implementation steps are as follows:
1) if the high-capacity USIM is a Java Card:
a) the host sends an installation instruction in the Global Platform specification to the high-capacity USIM;
b) the high-capacity USIM accesses the smart card partition in the mass storage space, finds out the small application program to be installed through searching the application identification, and reads the small application program from the smart card partition into an operating system on the high-capacity USIM chip;
c) the host sends an activation instruction in the Global Platform specification to select the applet, and the high-capacity USIM on-chip operating system executes the selected applet on the running space of the USIM;
d) when the host sends a deactivation or uninstallation instruction in the Global Platform specification, the applet executed in the running space of the high-capacity USIM on-chip operating system is stopped, cancelled or deleted, and the uninstalled applet is still stored in the smart card partition of the mass storage space;
2) if the large-capacity USIM is Native Card:
a) the host sends a private instruction for executing the applet to the high-capacity USIM;
b) the high-capacity USIM accesses the smart card partition in the mass storage space, finds out the small application program to be called through searching the application identifier, and reads the small application program from the smart card partition into an on-chip operating system of the high-capacity USIM;
c) the high-capacity USIM on-chip operating system executes the applet on the running space;
d) when the host sends an application ending instruction, the small application programs executed in the running space of the high-capacity USIM on-chip operating system are stopped and deleted from the on-chip operating system, and the small application programs which are not read are still stored in the smart card partition of the mass storage space.
2. The method of claim 1, wherein said high capacity USIM is a subscriber identity card that supports both traditional telecommunications services and mass storage functions.
3. The method of claim 1, wherein the high capacity USIM applet supports both ISO/IEC7816 and USB communication interfaces and accesses different partitions of the mass storage space through both communication interfaces.
4. The method of claim 1, wherein said high capacity USIM is a USB composite device that can be recognized as a slave device after connection to a USB interface of a host as a USB CCID device and a USB mass storage device having multiple memory partitions.
5. The method of claim 2, wherein the mass storage function means that the large-capacity USIM has a plurality of storage partitions, each of which has different access rights and application functions, one of the storage partitions is used as a smart card partition to provide access to the telecommunication service function, and the applet is stored in the smart card partition.
6. The method of claim 1, wherein the operating system on the USIM chip is a high-capacity USIM internal operating system, and the operating system on the USIM chip has two implementation modes, one is a Java Card platform, and the other is a Native Card platform.
7. The method of claim 6, wherein the Java Card platform is implemented using Java Card platform specification as standard, providing standard application function interfaces, and when any applet is run on the Java Card platform, calling different standard application function interfaces to complete the target operation, so that the same USIM implements different application functions.
8. The method of claim 6, wherein the connection between the Native Card platform and the applet is a fixed interface, and only a plurality of fixed applets can be run on the Native Card platform, and the USIM can only realize a plurality of fixed application functions.
9. The method of claim 7, wherein the Applet is a Java Applet running on a Java Card, and dynamically performs downloading, installing, activating, deactivating and uninstalling operations on a Java Card platform, and after being activated, the Applet can receive an externally transmitted command and execute a corresponding code of the Applet.
10. The method of claim 7, wherein the applet is a plurality of fixed applets running on a Native Card platform, and does not need to be downloaded, installed or activated, and the Native Card platform processes the received external command to directly call a corresponding interface or code of the applet to implement the function of the application.
11. The method of claim 1, wherein the applet storing stage is that the host is connected to the large-capacity USIM through ISO/IEC7816 or USB CCID interfaces, through which the smart card partition in the mass storage area can be accessed, and the applet is written into the smart card partition using a download command and is distinguished into different locations where the applet is stored by different application tags.
12. The method for operating the large-capacity USIM applet according to claim 1, wherein the applet executing stage means that the large-capacity USIM receives a command sent by the host from an ISO/IEC7816 or USB CCID interface and requests to install or call a certain applet, and at this time, the large-capacity USIM on-chip operating system retrieves an application tag from a smart Card partition of a mass storage space of the large-capacity USIM, reads the applet, and installs the applet in the operating space of the large-capacity USIM to be executed on a Java Card platform or a Native Card platform.
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