Biometric information management method and biometric information management apparatus

Patent metadata

Field	Value
Publication number	US-10021096-B2
Application number	US-201615204754-A
Country	US
Kind code	B2
Filing date	Jul 7, 2016
Priority date	Aug 7, 2015
Publication date	Jul 10, 2018
Grant date	Jul 10, 2018

Abstract

In a biometric information management method, a first comparison result is acquired by comparing first biometric input information with registered first biometric authentication information and a second comparison result is acquired by comparing second biometric input information with registered second biometric authentication information. Further, satisfaction or non-satisfaction of a predetermined authentication information compensation condition is determined based on the first comparison result and the second comparison result. If a result of the determining satisfies the authentication information compensation condition, the first biometric authentication information is compensated by using the first biometric input information or the second biometric authentication information is compensated by using the second biometric input information.

First claim

What is claimed is:

1. A biometric information management method, comprising:
acquiring a first comparison result by comparing first biometric input information with registered first biometric authentication information;
acquiring a second comparison result by comparing second biometric input information with registered second biometric authentication information;
determining satisfaction or non-satisfaction of a predetermined authentication information compensation condition based on the first comparison result and the second comparison result; and
compensating the first biometric authentication information by using the first biometric input information or compensating the second biometric authentication information by using the second biometric input information, when the authentication information compensation condition is satisfied in said determining,
wherein said acquiring the first comparison result includes calculating a first similarity degree between the first biometric input information and the first biometric authentication information,
wherein said acquiring the second comparison result includes calculating a second similarity degree between the second biometric input information and the second biometric authentication information,
wherein said determining includes determining satisfaction or non-satisfaction of the authentication information compensation condition based on a result of comparison of the first similarity degree with a predetermined first threshold value and a result of comparison of the second similarity degree with a predetermined second threshold value, and
wherein said determining includes determining authentication of the first biometric input information to be successful if the first similarity degree is equal to or larger than the first threshold value and determining authentication of the second biometric input information to be successful if the second similarity degree is equal to or larger than the second threshold value.

2. A non-transitory computer-readable storage medium including computer executable instructions, wherein the instructions, when executed by a processor, cause an apparatus to perform biometric information management operations, the operations comprising:
acquiring a first comparison result by comparing first biometric input information with registered first biometric authentication information;
acquiring a second comparison result by comparing second biometric input information with registered second biometric authentication information;
determining satisfaction or non-satisfaction of a predetermined authentication information compensation condition based on the first comparison result and the second comparison result; and
compensating the first biometric authentication information by using the first biometric input information or compensating the second biometric authentication information by using the second biometric input information, when the authentication information compensation condition is satisfied in said determining,
wherein said acquiring the first comparison result includes calculating a first similarity degree between the first biometric input information and the first biometric authentication information,
wherein said acquiring the second comparison result includes calculating a second similarity degree between the second biometric input information and the second biometric authentication information,
wherein said determining includes calculating a combined similarity degree based on the first similarity degree and the second similarity degree and determining satisfaction or non-satisfaction of the authentication information compensation condition based on a result of comparison of the combined similarity degree with a predetermined combination threshold value, and
wherein said determining includes determining satisfaction or non-satisfaction of the authentication information compensation condition in view of a result of comparison of the first similarity degree with a predetermined first threshold value and a result of comparison of the second similarity degree with a predetermined second threshold value.

3. The non-transitory computer-readable storage medium of claim 2 , wherein the predetermined authentication information compensation condition includes a first biometric authentication information compensation condition which is satisfied when biometric authentication based on the second comparison result succeeds and biometric authentication based on the first comparison result fails, and a second biometric authentication information compensation condition which is satisfied when biometric authentication based on the first comparison result succeeds and biometric authentication based on the second comparison result fails,
the first biometric authentication information is compensated based on the first biometric input information when the first biometric authentication information compensation condition is satisfied, and
the second biometric authentication information is compensated based on the second biometric input information when the second biometric authentication information compensation condition is satisfied.

4. The non-transitory computer-readable storage medium of claim 2 , wherein the authentication information compensation condition includes a first biometric authentication compensation condition which is satisfied when the second similarity degree is equal to or larger than the second threshold value and the first similarity degree is equal to or larger than a first compensation threshold value smaller than the first threshold value, and a second biometric authentication compensation condition which is satisfied when the first similarity degree is equal to or larger than the first threshold value and the second similarity degree is equal to or larger than a second compensation threshold value smaller than the second threshold value.

5. A biometric information management apparatus, comprising a processor which executes program codes stored in a memory, wherein the executed program codes configure the apparatus to:
acquire a first comparison result by comparing first biometric input information with registered first biometric authentication information;
acquire a second comparison result by comparing second biometric input information with registered second biometric authentication information;
determine satisfaction or non-satisfaction of a predetermined authentication information compensation condition based on the first comparison result and the second comparison result; and
when a result of the determination satisfies the authentication information compensation condition, compensate the first biometric authentication information by using the first biometric input information or compensate the second biometric authentication information by using the second biometric input information,
wherein the program code is further configured to:
calculate a first similarity degree between the first biometric input information and the first biometric authentication information,
calculate a second similarity degree between the second biometric input information and the second biometric authentication information,
calculate a combined similarity degree based on the first similarity degree and the second similarity degree and to determine satisfaction or non-satisfaction of the authentication information compensation condition based on a result of comparison of the combined similarity degree with a predetermined combination threshold value, and
determine satisfaction or non-satisfaction of the authentication information compensation condition in view of a result of comparison of the first similarity degree with a predetermined first threshold value and a result of comparison of the second similarity degree with a predetermin

Assignees

• Suprema Inc

Inventors

• Shin Hochul
• Lee Kideok
• Lee Hyeonchang
• Song Bong Seop
• Lee Jae Won

Classifications

• H04L9/085

  Secret sharing or secret splitting, e.g. threshold schemes · CPC title

• G06K9/00926

  Physics · mapped topic

• H04L9/3231

  Biological data, e.g. fingerprint, voice or retina (network architectures or network communication protocols for supporting authentication of entities using biometrical features in a packet data network H04L63/0861) · CPC title

• G06F21/32

  using biometric data, e.g. fingerprints, iris scans or voiceprints · CPC title

• H04L63/0861 Primary

  using biometrical features, e.g. fingerprint, retina-scan (cryptographic mechanisms or cryptographic arrangements for entity authentication using biological data H04L9/3231) · CPC title