| 摘要 |
A smart card and a method for controlling a smart card trade are provided. The method includes receiving a trade instruction from a card reader through an antenna; analyzing the trade instruction to obtain trade information; judging whether the trade information contains an amount; comparing the amount with a prestored first threshold if the trade information contains the amount; performing a trade operation according to the trade instruction if the amount is smaller than the first threshold; sending first comparison information to a security chip if the amount is greater than or equal to the first threshold; performing a validation operation according to the first comparison information, and sending validation success information to the chip of the smart chip by the security chip if the validation operation is successful; and performing the trade operation according to the validation success information and the trade instruction |
