System and method for indentifying dynamic password based on double-interface intelligent card

The invention discloses a system and a method for indentifying a dynamic password based on a double-interface intelligent card. The system and method are used in the field of intelligent cards. The system comprises a far-end server, the double-interface intelligent card, and a dynamic password generating module, wherein the double-interface intelligent card comprises a RFID (radio frequency identification device) interface and a contact interface; the dynamic password generating module is used for generating a set of dynamic passwords when a reading and writing command for reading and writing the double-interface intelligent card sent by a card reader is received; the reading and writing command is sent for reading and writing the contact of the contact interface or the radio frequency of the RFID interface by the card reader; the far-end server is used for generating a random password at regular time and authenticating the dynamic password in order to identify if the random password is consistent with the synchronously generated dynamic password. By using the dynamically generated password to authenticate the reading and writing process of the double-interface intelligent card, the data safety and transaction safety of the double-interface intelligent card are efficiently increased.