公开(公告)号：WO2023009294A1

公开(公告)日：2023-02-02

申请号：PCT/US2022/036528

申请日：2022-07-08

Applicant: VISA INTERNATIONAL SERVICE ASSOCIATION

Inventor： NAGARAJA, Vinjith ,  XU, Minghua ,  PATEL, Karankumar Hiteshbhai ,  GU, Shengfei ,  PATRANABIS, Sikhar ,  BADRINARAYANAN, Saikrishna ,  MUKHERJEE, Pratyay ,  RINDAL, Peter ,  JIN, Shan

IPC: H04L9/08

Abstract: A method performed by a user device is disclosed. The method comprising generating a secret and measuring a biometric template of a user operating the user device. The method then generates a plurality of secret shares of the secret and of the biometric template. The user device then transmits the secret shares of the secret and of the biometric template to a plurality of recovery devices. After, the user device may then initiate a recovery of the secret and measure a biometric measurement of the user. Data of the biometric measurement may be transmitted to the plurality of recovery devices, where the recovery devices perform a partial computation. The user device use the plurality of partial computations to determine a match between the biometric template and the biometric measurement. If the two biometrics match, the user device can reconstruct the secret using shares of the secret from the recovery devices.

公开(公告)号：WO2022240907A1

公开(公告)日：2022-11-17

申请号：PCT/US2022/028634

申请日：2022-05-10

Applicant: VISA INTERNATIONAL SERVICE ASSOCIATION

Inventor： ARORA, Sunpreet Singh ,  LEDDY, William ,  GU, Shengfei ,  XU, Minghua

IPC: G06F21/32 ,  G06F21/45 ,  G06F21/33 ,  G06V40/18 ,  H04L9/32

Abstract: A method is disclosed. The method comprises receiving, from a server computer, a challenge, and displaying objects from an object list to a user. The method includes determining that a user has visually selected an object from the object list and moving the selected object on a display according to screen coordinates. A client computer captures a biometric of the user, and compares the biometric to another biometric stored in the client computer to provide a first comparison output, and compares a derivative of the selected object to a derivative of an object stored in the client computer to produce a second comparison output. The client computer signs the challenge with a private key and sends the signed challenge to the server computer, and the server computer verifies the signed challenge.

公开(公告)号：WO2022125157A1

公开(公告)日：2022-06-16

申请号：PCT/US2021/047706

申请日：2021-08-26

Applicant: VISA INTERNATIONAL SERVICE ASSOCIATION [US]/[US]

Inventor： GU, Shengfei ,  WU, Peng ,  CAI, Yiwei ,  XU, Minghua

IPC: G06N20/00 ,  G06K9/00 ,  G06F21/32

Abstract: Provided are systems for authenticating an individual using image feature templates that include at least one processor to train a first machine learning model based on a training dataset of a plurality of images of a user, generate a plurality of image feature templates using the first machine learning model, wherein each image feature template of the plurality of image feature templates is associated with a positive authentication of the identity of the user during a time interval, generate a second machine learning model based on the plurality of image feature templates, generate a predicted image feature template using the second machine learning model, determine whether to authenticate the identity of the user based on an input image of the user, and perform an action based on determining whether to authenticate the identity of the user. Methods and computer program products are also provided.