System and method for recognition of biometric information in shared vehicle

1. A system for recognizing user biometric information, comprising:

a key generation unit configured to generate a private key and a public key;

a decrypting unit configured to:

receive an authentication result from a vehicle, wherein the authentication result is generated based on user biometric information and the public key; and

decrypt the authentication result using the private key; and

an authentication result processing unit configured to:

transmit the decrypted authentication result to the vehicle; and

verify identity authentication received from the vehicle, wherein the identity authentication is performed by the vehicle based on the decrypted authentication result.

2. The system of claim 1 , further comprising a user registration unit configured to:

receive the user biometric information; and

generate first biometric information by encrypting the user biometric information using the public key.

3. The system of claim 2 , wherein the user registration unit comprises:

a first biometric registration unit configured to extract biometric information of a user to obtain biometric authentication data;

a first encrypting unit configured to generate the first biometric information by encrypting the obtained biometric authentication data using the public key; and

a storage configured to store the public key, user device information, and the first biometric information.

4. The system of claim 1 , further comprising a shared-vehicle server configured to:

allocate the vehicle to a user device; and

transmit encrypted first biometric information, the public key, and user device information stored in a user account to the allocated vehicle.

5. The system of claim 4 , wherein the shared-vehicle server is further configured to:

detect that user biometric information stored in a specific user account has been leaked from the shared-vehicle server;

transmit a message to a user device corresponding to the user account to notify a user of the leakage of the user biometric information;

receive a request for user deregistration to the shared-vehicle server; and

in response to reception of the request, deregister a user corresponding to the user device via a user deregistration operation.

6. The system of claim 4 , wherein the shared-vehicle server is further configured to:

receive a first message to notify the shared-vehicle server of the leakage of the user biometric information;

in response to reception of the first message, search user information corresponding to the shared vehicle; and

deliver a second message informing a user of the leakage of user information to a user device corresponding to the leaked user information.

7. A method for recognizing user biometric information, comprising:

generating, by a key generation unit, a private key and a public key;

generating, by a first encrypting unit, first biometric information by encrypting biometric authentication data using the public key;

receiving, by a decrypting unit, second biometric information from a vehicle, wherein the second biometric information is generated based on user biometric information and the public key;

decrypting, by the decrypting unit, the second biometric information using the private key;

transmitting a decrypted authentication result to the vehicle;

comparing, by an authentication verifying unit, the second biometric information and third biometric information, wherein the third biometric information is generated by encrypting the decrypted authentication result using the public key; and

authenticating, by the authentication verifying unit, a user based on the comparison result.

8. The method of claim 7 , further comprising:

receiving, by a user registration unit, user biometric information; and

generating, by the user registration unit, the first biometric information by encrypting the user biometric information using the public key.

9. The method of claim 8 , wherein generating the first biometric information comprises:

extracting, by a first biometric registration unit, biometric information of a user to acquire biometric authentication data;

generating, by a first encrypting unit, the first biometric information, wherein the first biometric information is generated by encrypting the acquired biometric authentication data using the public key; and

storing the public key, user device information, and the third biometric information.

10. The method of claim 7 , wherein authenticating the user comprises:

extracting user biometric information by a second biometric registration unit to obtain biometric authentication data;

generating, by a second encrypting unit, the second biometric information, wherein the second biometric information is generated by encrypting the obtained biometric authentication data using the public key; and

computing, by a homomorphic encryption-based computation unit, the first biometric information and the second biometric information using homomorphic encryption (HE).

11. The method of claim 7 , wherein authenticating the user further comprises:

receiving, by a second encrypting unit, the decrypted authentication result from a user device;

generating, by the second encrypting unit, the third biometric information by encrypting the decrypted authentication result using the public key;

comparing, by the authentication verifying unit, the second biometric information and the third biometric information with each other;

determining, based on the comparison result revealing that the first biometric information and the second biometric information match, by the authentication verifying unit, that the user is a reserved user; and

determining, based on the comparison result revealing that the first biometric information and the second biometric information do not match, by the authentication verifying unit, that the user is not a reserved user.

12. The method of claim 7 , further comprising user device registration operations, wherein the user device registration operations comprise:

generating a private key and a public key by the key generation unit;

storing the private key in the user device and transmitting the public key to a user registration unit;

extracting user biometric information by a first biometric information registration unit to obtain biometric authentication data;

extracting, by the first biometric information registration unit, feature points from the obtained biometric authentication data to generate a template;

generating first biometric information by encrypting the template corresponding to the biometric information using the public key;

transmitting the first biometric information, the public key, and information about the user device to a shared-vehicle server; and

storing, by the shared-vehicle server, the first biometric information, the public key, and information about the user device in a user account.

13. The method of claim 7 , further comprising shared vehicle reservation operations, wherein the shared vehicle reservation operations comprise:

registering, by a user device, a shared vehicle on a shared-vehicle server;

allocating, by the shared-vehicle server, the registered shared vehicle to the user device;

transmitting, from the shared-vehicle server to the allocated shared vehicle, encrypted first biometric information, the public key, and user device information stored in a user account; and

receiving and storing, by the allocated shared vehicle, the encrypted first biometric information, the public key, and the user device information.

14. The method of claim 7 , further comprising shared vehicle reservation cancellation operations, wherein the shared vehicle reservation cancellation operations comprise:

transmitting, by a user device, a shared vehicle reservation cancellation to a shared-vehicle server;

searching, by the shared-vehicle server, a reserved shared vehicle corresponding to the user device;

transmitting, from the shared-vehicle server to the shared vehicle, encrypted first biometric information, the public key, and user device information stored in a user account; and

deleting, by the shared vehicle, the first biometric information, the public key, and user device information from reservation information of the shared vehicle.

15. The method of claim 7 , further comprising user deregistration operations, wherein the user deregistration operations comprise:

activating a user deregistration application installed on a user device to transmit a user deregistration request to a shared-vehicle server;

deleting, by the user device, the private key and the public key stored in the user device;

in response to reception of the user deregistration request, deleting, by the shared-vehicle server, encrypted third biometric information, the public key, and user device information stored in a user account;

searching, by the shared-vehicle server, a reserved shared vehicle corresponding to the user device;

transmitting, from the shared-vehicle server to the searched shared vehicle, a request for deletion of reservation information corresponding to the user device; and

in response to reception of the deletion request, deleting, by the shared vehicle, the reservation information corresponding to the user device from a reservation information of the shared vehicle.

16. The method of claim 7 , further comprising:

detecting, by a shared-vehicle server, that user biometric information stored in a specific user account has been leaked from the shared-vehicle server;

transmitting, by the shared-vehicle server, a message to a user device corresponding to the user account to notify a user of the leakage of the user biometric information;

in response to reception of the message, transmitting, by the user device, a request for user deregistration to the shared-vehicle server;

deleting, by the user device, the private key and the public key stored in the user device; and

in response to reception of the request, deregistering, by the shared-vehicle server, a user corresponding to the user device via a user deregistration operation.

17. The method of claim 7 , further comprising:

detecting, by a shared vehicle, that user biometric information stored therein has been leaked from the shared vehicle;

transmitting, by the shared vehicle, a first message to a shared-vehicle server to notify the shared-vehicle server of the leakage of the user biometric information;

in response to reception of the first message, searching, by the shared-vehicle server, user information corresponding to the shared vehicle;

delivering, by the shared-vehicle server and to a user device corresponding to the leaked user information, a second message informing a user of the leakage of user information; and

in response to reception of the second message, deregistering, by the user device, a user corresponding to the user device.

18. The method of claim 7 , further comprising:

receiving, by a shared-vehicle server, a loss report of a user device;

in response to reception of the loss report, deleting, by the shared-vehicle server, the first biometric information, the public key, and user device information stored in a user account corresponding to the user device;

canceling, by the shared-vehicle server, a shared vehicle reservation; and

registering, by the shared-vehicle server, a new user device.