US 12,355,890 B2
Authentication apparatus and authentication method
Yosuke Kaga, Tokyo (JP); Kenta Takahashi, Tokyo (JP); Masakazu Fujio, Tokyo (JP); Wataru Nakamura, Tokyo (JP); and Yoshiko Yasumura, Tokyo (JP)
Assigned to HITACHI, LTD., Tokyo (JP)
Appl. No. 18/044,423
Filed by Hitachi, Ltd., Tokyo (JP)
PCT Filed Aug. 23, 2021, PCT No. PCT/JP2021/030731
§ 371(c)(1), (2) Date Mar. 8, 2023,
PCT Pub. No. WO2022/172491, PCT Pub. Date Aug. 18, 2022.
Claims priority of application No. 2021-020701 (JP), filed on Feb. 12, 2021.
Prior Publication US 2023/0327876 A1, Oct. 12, 2023
Int. Cl. H04L 9/32 (2006.01); H04L 9/08 (2006.01)
CPC H04L 9/3231 (2013.01) [H04L 9/0866 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An authentication apparatus that prevents information leakage from registration data through empty-handed authentication, the authentication apparatus comprising:
a communication interface that is communicatively coupled to a memory, wherein the memory stores plurality of concealment templates that are each generated from a secret key and respective biometric information through use of biometric cryptography,
one or more processors that are communicatively coupled to the communication interface, wherein the one or more processors are collectively configured to:
obtain a particular concealment template from among the plurality of concealment templates based on an identifier received from a user,
receive biometric information from the user,
extract the secret key from the particular concealment template using the biometric information received from the user,
acquire identity verification information by decrypting encrypted identity verification information using the secret key extracted, wherein the identity verification information includes a photograph of the user
receive a verification result from a third party in response to displaying the photograph to the third party, and
verify an identity of the user based on the verification result.