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.

公开(公告)号：WO2022125847A1

公开(公告)日：2022-06-16

申请号：PCT/US2021/062731

申请日：2021-12-10

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

Inventor： SINHA, Rohit ,  KUMARESAN, Ranjit, Kumar ,  GADDAM, Sivanarayana ,  CHRISTODORESCU, Mihai

IPC: G06Q20/38

Abstract: Described are a system, method, and computer program product for secure real-time n-party computation. The method includes communicating, to a trusted execution environment (TEE), a first computation input and a first portion of a one-time key. The method also includes receiving, from the TEE, an encrypted output of a computation based on the first computation input and a second computation input communicated to the TEE by a second computing device. The method further includes communicating the encrypted output to the second computing device and receiving a digital signature indicating that the second computing device received the encrypted output. The method further includes communicating the first portion of the one-time key to the second computing device and, in response to not receiving the second portion of the one-time key from the second computing device, executing a fallback computation process using the TEE and a shared ledger to determine the computation.