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

Claim 17:
18. The method of claim 11, wherein the authentication-related value sending procedure further comprises a step in which a processor of a mobile terminal included in the user terminal extracts a random number of bits from the created authentication-related value based on a predetermined method of selecting bits and sends the extracted bits to the user authentication server, and
wherein the user authentication procedure further comprises a step in which the processor of the user authentication server performs user authentication by determining whether the extracted bits sent by the mobile terminal is identical to the verification key, which is created by extracting the random number of bits, based on the predetermined method of selecting the bits, from an additional authentication-related value calculated 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.