Patent ID: 11930118
Assignee: FEITIAN TECHNOLOGIES CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 19:
20. The authentication device of claim 16, wherein
the security environment chip is further configured to, based on the determining the value of the fingerprint authentication identifier in the option parameter is the first preset value, generate a random number and a special status code; and further configured to, based on the determining the value of the fingerprint authentication identifier in the option parameter is the second preset value, generate the random number and the special status code;
send the random number and the special status code to the fingerprint management chip;
the fingerprint management chip is further configured to receive the special status code and the random number;
determine whether the special status code is legitimate;
based on the determining the value of the fingerprint authentication identifier in the option parameter is the first preset value and the special status code is legitimate, prompt the user to input the fingerprint and verify the fingerprint input by the user to obtain the user operation verification result; further configured to based on the determining the value of the fingerprint authentication identifier in the option parameter is the second preset value and the special status code is legitimate, prompt the user to press the key and verify the key pressed by the user to obtain the user operation verification result;
use a first session key and the random number to encrypt the user operation verification result to obtain an encrypted user operation verification result;
send the encrypted user operation verification result to the security environment chip;
based on the determining the special status code is not legitimate, report an error; and
use the random number to decrypt the encrypted user operation verification result to obtain the user operation verification result.