System and method for recognition of biometric information in shared vehicle

Patent metadata

Field	Value
Publication number	US-2020007338-A1
Application number	US-201916557142-A
Country	US
Kind code	A1
Filing date	Aug 30, 2019
Priority date	Aug 12, 2019
Publication date	Jan 2, 2020
Grant date	—

Abstract

A system and method for recognition of biometric information for a shared vehicle in which data exposure is prevented which may otherwise occur when using a biometric recognition function in a shared vehicle or autonomous driving vehicle in a shared environment. The system and method may be associated with an AI device, a drone, an UAV, a robot, an AR device, a VR device, and a 5G service.

First claim

What is claimed is:

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 shared 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 shared vehicle; and
verify identity authentication received from the shared vehicle, wherein the identity authentication is performed by the shared 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 2 , wherein the shared vehicle comprises:
a second biometric registration unit configured to extract user biometric information to obtain biometric authentication data; a second encrypting unit configured to generate second biometric information by encrypting the obtained biometric authentication data using the public key; an encryption-based computation unit configured to compute the second biometric information and the first biometric information using homomorphic encryption (HE) to generate a homomorphic encrypted authentication result; and an authentication verifying unit configured to compare third biometric information and the second biometric information, and authenticate the user based on the comparison result, wherein the third biometric information is generated by encrypting the decrypted homomorphic encrypted authentication result using the public key.

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

6 . The system of claim 5 , 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.

7 . The system of claim 5 , 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.

8 . The system of claim 4 , wherein the authentication verifying unit is further configured to:
determine, based on the comparison result revealing that the first biometric information and the second biometric information match, that the user is a reserved user; and determine, based on the comparison result revealing that the first biometric information and the second biometric information do not match, that the user is not a reserved user.

9 . 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 shared 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 shared 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.

10 . The method of claim 9 , 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.

11 . The method of claim 10 , 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.

12 . The method of claim 9 , 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).

13 . The method of claim 9 , 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.

14 . The method of claim 9 , 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 re

Assignees

• Lg Electronics Inc

Inventors

• Oh Soo-Hwan

Classifications

• H04L9/008

  involving homomorphic encryption · CPC title

• H04L2209/84

  Vehicles · CPC title

• H04L9/3231 Primary

  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

• G06Q10/02 Primary

  Reservations, e.g. for tickets, services or events · CPC title

• H04L9/30

  Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy · CPC title