User authentication system
    21.
    发明授权

    公开(公告)号:US11615663B1

    公开(公告)日:2023-03-28

    申请号:US14306669

    申请日:2014-06-17

    Abstract: Described are systems and techniques configured to authenticate a user upon entry to a facility. Prior to entry, the user may log in to a secure website with valid credentials, whereupon a login image of the user at the time of login is acquired. In one implementation, optically encoded data is generated which includes data representative of the login image, an acquisition timestamp, and an identifier value. At entry of the user to the facility, an entry image of the user's face, an image of the optically encoded data as presented on a display of a computing device in possession of the user, and an entry timestamp are acquired. By determining the timestamp is within a valid range of time and the data representative of the login image corresponds to the entry image, the user is authenticated to the identifier value.

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