Authentication device, authentication method, and information processing device
The present technology relates to an authentication device, an authentication method, a program, and an information processing device capable of performing user authentication using biometric information without storing the biometric information. The authentication device performs user authentication by comparing answer information that is generated by converting authentication information generated by converting basic information using biometric information for generation using biometric information for authentication with correct answer information. The present technology is applied to, for example, an authentication device that performs biometric authentication.
1. An authentication device, comprising:
a central processing unit (CPU) configured to:
determine a quality of first biometric information of a first user;
convert authentication information into answer information based on the determined quality of the first biometric information is equal to or greater than a threshold quality, wherein
the authentication information is generated based on a conversion of basic information, and
the basic information is converted into the authentication information based on second biometric information;
compare the answer information and correct answer information;
determine, based on a similarity between the answer information and the correct answer information, a consistency of the first user with a second user associated with the second biometric information; and
authenticate the first user based on the determined consistency and the comparison between the answer information and the correct answer information; and
control, based on the authentication of the first user, display of a result on a display screen, wherein the result indicates the authentication of the first user.
2. The authentication device according to claim 1 , wherein the CPU is further configured to:
read the first biometric information; and
convert the authentication information into the answer information based on the first biometric information.
3. The authentication device according to claim 2 , wherein the CPU is further configured to:
extract at least one feature amount of the first biometric information; and
convert the authentication information into the answer information based the extracted at least one feature amount.
4. The authentication device according to claim 3 , wherein the CPU is further configured to:
extract a plurality of types of the at least one feature amount of the first biometric information;
divide the authentication information into a plurality of portions; and
convert, based on a first type associated with a first portion of the plurality of portions of the authentication information, the first portion into the answer information, wherein the first type is from the plurality of types of the at least one feature amount.
5. The authentication device according to claim 2 , wherein
the first biometric information includes a plurality of first types of the first biometric information,
the second biometric information includes a plurality of second types of the second biometric information, and
the CPU is further configured to convert the authentication information into the answer information based on the plurality of first types of the first biometric information.
6. The authentication device according to claim 2 , wherein
the basic information is consistent with the correct answer information,
the CPU is further configured to convert the authentication information into the answer information based on an inverse conversion process, and
the inverse conversion process corresponds to an inverse of the conversion of the basic information into the authentication information.
7. The authentication device according to claim 2 , wherein
the conversion from the basic information into the authentication information is an irreversible conversion, and
the basic information is different from the correct answer information.
8. The authentication device according to claim 2 , wherein the CPU is further configured to:
convert a plurality of pieces of the authentication information into a plurality of pieces of the answer information based on the first biometric information; and
specify a first piece of the authentication information from the plurality of pieces of the authentication information, based on the similarity between each of the plurality of pieces of the answer information and the correct answer information.
9. The authentication device according to claim 1 , wherein
the authentication information is generated based on third biometric information of a plurality of users, and
the CPU is further configured to determine that the plurality of users includes the first user based on the similarity between the answer information and the correct answer information.
10. The authentication device according to claim 1 , wherein the CPU is further configured to:
receive the answer information from a mobile terminal; and
transmit information, that indicates the result of the authentication of the first user, to the mobile terminal.
11. The authentication device according to claim 1 , wherein
the first biometric information and the second biometric information include at least one of a finger vein, a fingerprint, a palm print, voice, a face, an iris, or ear sound.
12. An authentication method, comprising:
determining a quality of first biometric information of a first user;
converting authentication information into answer information based on the determined quality of the first biometric information is equal to or greater than a threshold quality, wherein
the authentication information is generated based on a conversion of basic information, and
the basic information is converted into the authentication information based on second biometric information;
comparing the answer information and correct answer information;
determining, based on a similarity between the answer information and the correct answer information, a consistency of the first user with a second user associated with the second biometric information; and
authenticating the first user based on the determined consistency and the comparison between the answer information and the correct answer information; and
controlling, based on the authentication of the first user, display of a result on a display screen, wherein the result indicates the authentication of the first user.
13. A non-transitory computer-readable medium having stored thereon, computer-executable instructions which, when executed by a computer, cause the computer to execute operations, the operations comprising:
determining a quality of first biometric information of a first user;
converting authentication information into answer information based on the determined quality of the first biometric information is equal to or greater than a threshold quality, wherein
the authentication information is generated based on a conversion of basic information, and
the basic information is converted into the authentication information based on second biometric information;
comparing the answer information with correct answer information;
determining, based on a similarity between the answer information and the correct answer information, a consistency of the first user with a second user associated with the second biometric information; and
authenticating the first user based on the determined consistency and the comparison between the answer information and the correct answer information; and
controlling, based on the authentication of the first user, display of a result on a display screen, wherein the result indicates the authentication of the first user.
14. An information processing device, comprising:
a central processing unit (CPU) configured to:
read first biometric information of a first user;
determine a quality of the first biometric information; and
convert basic information into authentication information based on the determined quality of the first biometric information is equal to or greater than a threshold quality, wherein
the authentication information is converted into answer information based on second biometric information,
a consistency of the first user with a second user is determined based on a similarity between the answer information and correct answer information,
the second user is associated with the second biometric information,
a user authentication is based on the consistency and a comparison between the answer information and the correct answer information, and
a result of the user authentication is displayed on a display screen.
15. The information processing device according to claim 14 , wherein the CPU is further configured to:
extract at least one feature amount of the second first biometric information;
divide the authentication information into a plurality of portions; and
convert, based on a first feature amount associated with a first portion of the plurality of portions of the authentication information, the first portion, wherein the at least one feature amount includes the first feature amount.
16. The information processing device according to claim 14 , wherein
the first biometric information includes a plurality of first types of the first biometric information,
the second biometric information include a plurality of second types of the second biometric information, and
the CPU is further configured to convert the basic information into the authentication information based on the plurality of first types of the first biometric information.
17. The information processing device according to claim 14 , wherein
the CPU is further configured to convert the basic information into the authentication information based on third biometric information of a plurality of users.
18. The information processing device according to claim 14 , wherein the CPU is further configured to:
read the second biometric information;
convert the authentication information into the answer information based on the second biometric information;
transmit the answer information to an authentication device; and
receive information that indicates the result of the user authentication from the authentication device, wherein
the result of the user authentication is based on the comparison between the answer information and the correct answer information.
19. The information processing device according to claim 14 , wherein
the CPU is further configured to convert the basic information into the authentication information based on a conversion rule.