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Smart card and smart card transaction control method

A control method and smart card technology, applied in the electronic field, can solve problems such as insecurity of smart IC cards

Active Publication Date: 2016-01-06
TENDYRON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to solve the problem of insecurity of existing smart IC cards

Method used

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  • Smart card and smart card transaction control method
  • Smart card and smart card transaction control method
  • Smart card and smart card transaction control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] figure 1 A structural schematic diagram of a smart card of the present invention is shown, see figure 1 , the smart card 10 includes: a security chip 101, a smart card chip 102 and an antenna 103, wherein:

[0051] The security chip 101 receives the transaction instruction from the card reader 20 through the antenna 103, and analyzes the transaction instruction to obtain the transaction information; the security chip 101 judges whether the transaction information includes amount information, and if the transaction information includes the amount information, then the security chip 101 will prestore the transaction information. The preset threshold is compared with the amount information; the security chip 101 sends the transaction instruction to the smart card chip 102 according to the comparison result, and the smart card chip 102 executes the transaction operation according to the transaction instruction.

[0052] When the card reader conducts a transaction on the sm...

Embodiment 2

[0117] The difference between this embodiment and Embodiment 1 is that in this embodiment, the smart card further includes: a switch 106;

[0118] see image 3 , the switch 106 can be set on the antenna to turn on or off the antenna; the security chip 101 connects the smart card chip 102 and the antenna 103, and provides an information transmission path for the smart card chip when the antenna is turned on.

[0119] see Figure 4 , the switch 106 connects the antenna 103 and the security chip 101, connects or disconnects the connection path between the antenna 103 and the security chip 101; the security chip 101 connects the smart card chip 102 and the antenna 103, and provides an information transmission path for the smart card chip when the switch 106 is closed.

[0120] Of course, the switch 106 can be a mechanical switch. Of course, when it is a mechanical switch, the smart card can also include a switch button, and the user can close or disconnect the mechanical switch t...

Embodiment 3

[0132] Compared with Embodiment 1 or Embodiment 2, this embodiment differs in that two thresholds are set for comparison by the security chip, so that the transaction security can be improved step by step.

[0133] This example Figure 5 The structure of the comparison unit 1014 is described on the basis of Embodiment 1, and the comparison unit 1014 may include:

[0134] The first comparison module 10141, the first comparison module 10141 compares the amount information to be less than the first threshold, and sends the first comparison information to the control unit 1015, and the control unit 1015 sends the transaction instruction to the smart card chip 102 according to the first comparison information ;

[0135] The second comparison module 10142, the second comparison module compares the amount information to be greater than or equal to the first threshold and less than the second threshold, and sends the second comparison information to the control unit 1015, and the con...

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PUM

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Abstract

Provided are a smart card and a transaction control method for the smart card. The method comprises: a security chip (101) receiving a transaction instruction from a card reader (20) via an antenna (103)(S201); the security chip (101) parsing the transaction instruction, so as to acquire transaction information (S202); the security chip (101) judging whether the transaction information contains information about amount of money or not (S203); if the transaction information contains the information about amount of money, the security chip (101) comparing a pre-stored threshold value with the information about amount of money (S204); the security chip (101) sending the transaction instruction to a smart card chip (102) according to the comparison result (S205); and the smart card chip (102) executing a transaction operation according to the transaction instruction (S206). When the card reader (20) performs transaction on the smart card, because the card swiping amount of money of the card reader (20) can be compared with the pre-stored threshold value by means of the security chip (101), the transaction instruction is sent to the smart card chip (102) on the basis of the comparison result, so as to execute the transaction operation, so that the smart card has corresponding security protection measures. Therefore, the security of a transaction can also be guaranteed even when a large sum transaction is conducted.

Description

technical field [0001] The invention relates to the field of electronic technology, in particular to a smart card and a smart card transaction control method. Background technique [0002] Most of the current smart IC cards are single-function smart IC cards, such as fuel cards, etc., because they have no encryption and security protection measures, so they can be used to complete small transactions. Transaction security cannot be guaranteed. [0003] And when the existing smart IC card conducts non-contact transactions, the smart IC card chip transmits information through the non-contact antenna. When the non-contact antenna senses the control command from the card reading device (such as: POS, ATM, etc.), it will Trigger the smart IC card for data transmission. Without the user's knowledge, as long as the smart IC card receives a control command from the card reading device, the smart IC card will be triggered to transmit data, resulting in the loss of the user's smart c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G07F7/10
CPCG06Q20/341G06Q20/352G07F7/0866
Inventor 李东声
Owner TENDYRON CORP
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