Patent ID: 11868985
Assignee: FEITIAN TECHNOLOGIES CO., LTD.
Field: IT methods for management (Electrical engineering)
Classification: CPC G | IPC G

Claim 2:
3. The method of claim 1, wherein the transaction data comprises transaction amount;
before receiving the online PIN entered by the cardholder, the method further comprises the following steps:
1-1) determining, by the visual financial chip card, whether the transaction amount is more than a preset amount, if yes, executing receiving the online PIN entered by the cardholder; otherwise, executing step 1-1; and
1-2) determining, by the visual financial chip card, whether a cached online PIN exists, if yes, reading the cached online PIN, encrypting the online PIN to obtain the online PIN ciphertext, executing step S3; otherwise, executing receiving the online PIN entered by the cardholder;
after receiving the online PIN entered by the cardholder, the method further comprises: caching the online PIN.