FIELD: physics, computation hardware.
SUBSTANCE: invention is designed to limit the access to data by user identification by correct part of known-in-advance-image detailed by the user and reiteration of said job for preset quantity of times. Series of images are displayed for the user to perform preset operations therewith. Note here that next picture generation depends on previous operations of the user. In case said operations are incorrect other notable different and unfamiliar pictures are displayed for the user. The user will not make required operations and have to jump back to correct the error.
EFFECT: complete elimination of errors at data code input, ruled out password search attacks.
1 dwg
