Patent ID: 11888844
Assignee: SECUVE CO., LTD.
Field: IT methods for management (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 6:
7. The system of claim 1, wherein:
the processor of the mobile terminal is further configured to extract a random number of bits from the created authentication-related value based on a predetermined method of selecting bits, and send the extracted bits to the user authentication server, and
wherein the processor of the user authentication server is further configured to, after sending the user authentication message, calculate an additional authentication-related value by performing the second XOR operation on the authentication key, the security key, one or more of identification information and a phone number of the mobile terminal, and create the verification key by extracting the random number of bits from the additional authentication-related value based on the predetermined method of selecting the bits, and
verify the extracted bits sent from the mobile terminal by determining whether the extracted bits sent from the mobile terminal is identical to the verification key.