METHOD AND DEVICE FOR PERSONAL AUTHENTICATION, TERMINAL AND DATA MEDIUM Russian patent published in 2025 - IPC G06F21/31 

FIELD: physics.

SUBSTANCE: invention relates to a method, a device, a terminal and a computer-readable data medium for personal authentication. Method comprises generating a random matching target function in response to an identity verification command, wherein the arbitrary matching target function is a function generated to associate characters with gestures in an arbitrary manner; displaying a virtual keyboard based on the arbitrary matching target function, wherein the virtual keyboard displays information indicating the need to convert the password, which corresponds to the arbitrary matching target function and which is determined as an indication of the need to convert password characters in the original password into gestures, wherein different password symbols correspond to different gestures, password conversion mode displayed by information indicating the need for password conversion is randomly generated, and password characters include at least one type of numbers, letters, punctuation marks and special characters; wherein the virtual keyboard display based on the arbitrary matching target function comprises: determining a password conversion unit based on the arbitrary matching target function, wherein the password conversion unit includes one of the password symbols and a gesture corresponding to one of the password symbols in the arbitrary matching target function; and displaying the password conversion unit on the virtual keyboard based on the first display mode corresponding to one of the password symbols and the second display mode corresponding to the gesture identifier, wherein the first display mode is different from the second display mode; obtaining facial feature data by extracting facial features from identity verification images collected by the camera; obtaining a sequence of gestures by detecting activity on identity verification images; obtaining a source password by converting a password from a sequence of gestures based on an arbitrary matching target function; and performing identity authentication based on the initial password and facial features data.

EFFECT: high reliability of identity authentication.

11 cl, 7 dwg, 1 tbl