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Establishing method for special data channel between mobile application and intelligent card

A technology for establishing methods and dedicated data, which is applied in the field of smart card applications to achieve reliable data transmission and high efficiency

Active Publication Date: 2009-03-11
SPREADTRUM COMM (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] With the development of IC technology and technology, the processing capacity of smart card cpu has been increased to tens of megabytes and hundreds of megabytes of mips, and the capacity of storing data has also been increased from the previous 64K / 256K byte to 256M byte, even Giga level. The communication method between the terminal and the smart card still adopts the low-speed interface of ISO / IEC 7816-4 because it needs to be compatible with the mobile terminal, and the smart card with the high-speed interface has not yet become the mainstream application

Method used

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  • Establishing method for special data channel between mobile application and intelligent card
  • Establishing method for special data channel between mobile application and intelligent card
  • Establishing method for special data channel between mobile application and intelligent card

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Embodiment Construction

[0048] At first, illustrate the inventive idea:

[0049] Based on the 7816 protocol or GSM protocol, by extending the APDU command protocol, redefining the combination of parameters P1, P2, Lc and Le or the combination of P1, P2 and P3 to identify the private data used between mobile applications and smart cards Channel establishment for extending smart card-based mobile applications.

[0050] The mobile terminal sends APDU commands to the smart card continuously with the agreed number of sending times, and these APDU commands can be a file selection command sequence for selecting an agreed file in an agreed order, or an order for selecting an agreed record file and reading the record file in an agreed order The combination of the command sequence for specifying the record number in the file may also be the combination of the command for selecting the specified transparent file and the command sequence for reading the byte value of the specified position in the transparent fil...

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Abstract

The invention relates to a building method of a special data channel between mobile application and a smart card, including the steps: (1) a standard APDU order and a special APDU order used for building a special channel are distinguished through judging whether a parameter in the APDU order is an appointed value or not, or (2) the APDU order for selecting an appointed file is sent in appointed times and orders or the APDU order of an appointed record number in an appointed record file or an appointed byte value in an appointed opaque file is read in appointed times and orders, or (3) the two methods are further combined, the building method for building a uniform and special data channel between terminal equipment and a smart card, thereby solving the problem that developing the mobile application on a standard ISO / IEC7816 interface is limited.

Description

technical field [0001] The invention relates to smart card applications, in particular to a method for establishing a dedicated data channel between a mobile application and a smart card. Background technique [0002] With the rapid development and wide application of wireless communication technology, various mobile value-added services / applications appear one after another. Among them, there are two typical types: applications based on mobile terminals and applications based on smart cards. Although the former has been developed to a certain extent, because it is rarely supervised by operators, it does not receive strong support from operators; while applications based on smart cards are completely monitored by operators because they are integrated in smart cards. , It is easier to get support from operators than applications based on mobile terminals, and thus get a large area of ​​promotion. [0003] However, due to the limitations of many technical conditions includin...

Claims

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Application Information

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IPC IPC(8): H04Q7/32H04L29/02
Inventor 杨延辉张溯王鹿童李光泽
Owner SPREADTRUM COMM (SHANGHAI) CO LTD