FIELD: information technologies.
SUBSTANCE: method and device for determining authenticity of the system user is based on comparing coordinates of peculiar features of papillary patterns of fingers at double finger touch of the receiving scanner surface. During the first registration there obtained are pictures of at least two fingerprints, and during the second registration there obtained is the picture of at least one fingerprint, at that, the second registration is performed upon "request-answer" protocol command. Authenticity is considered confirmed in case of non-linear dependence of coordinate offsets of peculiar features of the first and the second pictures. Device for implementing the method consists of a scanner, picture processing unit, database, comparing unit, protocol forming unit connected to the scanner, and comparing unit. Protocol forming unit display panel is located on the scanner front surface.
EFFECT: ensuring high accuracy of authenticity and excluding the access of occasional persons to the protected system.
3 cl, 3 dwg
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