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Data operating method and device for intelligent card

A data manipulation and smart card technology, applied in the field of smart cards, can solve problems such as illegal recharge, and achieve the effect of improving security and legitimacy

Active Publication Date: 2010-03-10
BEIJING WATCH DATA SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, writing data in the MIFARE area may be used for illegal recharge, etc.

Method used

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  • Data operating method and device for intelligent card
  • Data operating method and device for intelligent card
  • Data operating method and device for intelligent card

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Embodiment Construction

[0020] In order to improve the security and legitimacy of the data access operation on the smart card, the embodiment of the present invention provides a data operation method on the smart card. In this method, the network side calculates the data operation related The message identification data of the information, and the message identification data is carried in the data operation command and sent to the smart card, and the smart card also calculates the message identification data of the data operation related information, and judges the calculated message identification data and the message carried in the data operation command Identify whether the data is consistent, and decide whether to perform data access operations on the smart card according to the judgment result.

[0021] see figure 1 The data operation method on the smart card provided by the embodiment of the present invention specifically includes the following steps:

[0022] Step 10: The network side determi...

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Abstract

The embodiment of the invention discloses a data operating method for an intelligent card, which is characterized in that a network side utilizes a set safe calculating algorithm and a secret key to calculate the information identifying data of data operating relevant information after determining that data access operation is needed for an intelligent card, and a data operating command carrying the information identifying data and the data operating relevant information is sent to the intelligent card; the intelligent card reads the secret key saved therein after receiving the data operatingcommand and then utilizes the safe calculating algorithm and the read secret key to calculate the information identifying data of the data operating relevant information, if the calculated informationidentifying data is consistent with the information identifying data carried in the data operating command, the data access operation is performed on the intelligent card, and otherwise, the data access operation is refused to the intelligent card. The embodiment of the invention also discloses an intelligent card. By adopting the invention, the safety and the validity of the data access operation performed on the intelligent card can be effectively improved.

Description

technical field [0001] The invention relates to the field of smart cards, in particular to a data operation method and device on a smart card. Background technique [0002] With the development of micro-payment systems such as city cards, equipment and card products that comply with ISO / IEC 14443 standards have been widely used. Its typical products are logic encryption card (MIFARE) series products. With the development of dual-interface smart card technology, in order to be compatible with the original MIFARE card-based system and gradually upgrade to the CPU card, there is an existing CPU card on the same chip, and at the same time it is simulated in the Electrically Erasable Programmable Read-Only Memory (EEPROM). The technology of MIFARE cards. This chip solution supports both the MIFARE function and various functions of the CPU card, providing a technical basis for flexible multi-applications. This type of chip can work in either CPU card mode or MIFARE card mode. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/07G06K17/00G07F7/12
Inventor 陈大才佟德海蒋学超陈栋
Owner BEIJING WATCH DATA SYST
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