Patent ID: 11870774
Assignee: REALTEK SEMICONDUCTOR CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 7:
8. A system, in which a method for authentication data transmission is operated, the system comprising:
a computer system, including a processor and a memory, wherein a database including one or more feature data is established; and
a biometric device connecting to the computer system;
wherein the processor performs the method for authentication data transmission comprising:
establishing a first secure channel and a second secure channel to the biometric device according to a first security protocol and a second security protocol via a driver interface, respectively, wherein the first security protocol is a secure device connection protocol, and the second security protocol is a transport layer security protocol;
receiving encrypted biometric feature data from the biometric device via the second secure channel;
decrypting the biometric feature data and extracting biometric features from the biometric feature data, wherein the biometric features are used to compare with the feature data in the database so as to generate a comparison result;
transmitting the comparison result to the biometric device via the second secure channel; and
in the biometric device, encrypting the comparison result according to the first security protocol and transmitting the encrypted comparison result to the computer system via the first secure channel;
wherein the computer system implements a biometric engine by a software procedure and the biometric engine receives the comparison result via the secure device connection protocol so as to implement a biometric authentication procedure that supports a match on chip technology.