Patent ID: 10839362

Abstract:
The present invention relates to an off-line PIN authentication and an off-line PIN authentication system. The method comprises: inputting an off-line PIN1 to a POS terminal, the POS terminal generating a dynamic challenge code, and transmitting the dynamic challenge code and the off-line PIN1 to a card application; the card application verifying the first off-line PIN1 and the second off-line PIN2 are consistent with each other or not; if consistent, a digital signature being made on the first off-line PIN1 and the second off-line PIN2 to return signature data and a success status code to the POS terminal; the POS terminal verifying the signature data in case of receiving the success status code, and starting the subsequent transaction procedure if the signature data is verified successfully. According to the present invention, it not only can realize the verification of the IC card to the off-line PIN, but also can realize the verification of the terminal to the off-line PIN. The method is implemented simply, is practical, safe and reliable.