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Data processing method for APDU command

A technology of data processing and processing method, which is applied in the field of smart card application, can solve problems such as smart card file system operation and affecting normal system functions, and achieve the effect of solving compatibility problems

Active Publication Date: 2009-03-11
SPREADTRUM COMM (SHANGHAI) CO LTD
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Problems solved by technology

[0005] However, according to the provisions of ISO / IEC 7816-4 and GSM 11.11, standard APDU commands have their own clear meanings for file operations. The command will cause the operation and rewriting of the standard smart card file system, and then affect the normal function of the system

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  • Data processing method for APDU command

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Embodiment Construction

[0026] At first, illustrate the key of data processing method of the present invention:

[0027] (1) Special transparent documents

[0028] The standard APDU command of the present invention includes the update binary UPDATE BINARY APDU command and its response and the read binary READ BINARY APDU command and its response open to the upper layer application of the mobile communication terminal (terminal for short); the update binary UPDATE BINARY APDU command and the read binary The READ BINARY APDU command response carries the transmitted data.

[0029] The above standard APDU commands are operations on files, which have specific meanings. Even if the protocol is re-encapsulated with its data body, when the smart card receives such encapsulated commands, if no special operations and processing are performed, the smart card will still Operates as specified by ISO / IEC 7816-4 and GSM 11.11, thus rewriting the standard smart card file system. In order not to affect the normal f...

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Abstract

The invention relates to a data processing method of an application protocol data unit (APDU) instruction. The method comprises the following steps: a special transparent file is established in a smart card to be used as a data exchange file; the smart card distinguishes the APDU instruction and turns to operate the data exchange file according to the received and encapsulated APDU instruction. The data processing method can utilize a standard APDU instruction to directly exchange large-capacity data with the smart card through the data exchange file, and can further avoid that the repeatedly read-write of block mode transmission to the same data exchange file by combining an EMS memory exchange mode, thereby the data transmitting efficiency and the physical life of a smart card memorizer can be improved.

Description

technical field [0001] The invention relates to smart card applications, in particular to a data processing method for APDU commands. Background technique [0002] With the rapid development and wide application of wireless communication technology, mobile operators have gradually changed from providing pure voice services to providers of integrated wireless data services. Only by providing better and more attractive data services can it maintain its high ARPU growth. Currently, there are two typical ways to deploy mobile value-added services / applications on the user terminal side: developing applications based on mobile terminals and developing applications based on smart cards. The latter has received extensive attention and support from operators because it can be regulated by operators. However, due to the limitation of many technical conditions including the processing power, communication means and capacity of the smart card, the current applications developed based ...

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Application Information

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IPC IPC(8): H04Q7/22G06K7/00H04L1/00
Inventor 杨延辉张溯朱秀玲潘志勇
Owner SPREADTRUM COMM (SHANGHAI) CO LTD
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