Suprema Inc.

Suprema Id Inc.

Jin Wook Yi

Jae Won Lee

Bong Seop Song

Bo Gun Park

Ho Chul Shin

Bo Ik Park

Ki Deok Lee

Won Seok Ahn

Yong Bae Lee

Provided are control methods of a decryption key storage server, a biometric information storage server, and a matching server in an authentication system. The control method of a decryption key storage server in an authentication system includes: acquiring an identifier of a target client and a encrypted biometric information for authentication; acquiring biometric information for registration corresponding to the identifier to be matched among pieces of the biometric information for registration having been encrypted by the at least one client transmitting the biometric information for registration; extracting a decryption key corresponding to the identifier from the at least one decryption key; decrypting the encrypted biometric information for authentication and the biometric information for registration corresponding to the identifier using the decryption key corresponding to the identifier; and determining whether or not the decrypted biometric information for authentication and the decrypted biometric information for registration corresponding to the identifier match.

Control methods of decryption key storage server, biometric information storage server, and matching server in authentication system

A method for a face recognition by a face recognition service server, includes receiving a face image that is photographed from a face registration terminal or a face recognition terminal; detecting a face area of the received face image; and quantifying at least one quality factor for the detected face area in order to determine whether the received face image is suitable as sample image required for face recognition. Further, the method includes selecting the received face image as the sample image required for the face recognition when the quality factor satisfies a predetermined quality criterion.

Method for face recognition

An apparatus for identifying a fake fingerprint, the apparatus comprising: a prism having a fingerprint contact surface with which a fingerprint comes in contacted; an internal light source configured to irradiate light from the inside of the prism; an external light source configured to irradiate light from the outside of the prism; an image sensor configured to acquire diffused light image by the internal light source and transmitted light image by the external light source; and a controller configured to compare the diffused light image and the transmitted light image acquired by the image sensor to determine whether the fingerprint is a fake fingerprint or not.

Method and apparatus for identifying fake fingerprint

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Seongnam-si, South Korea

Jin Wook Yi