FIELD: computer engineering, may be used to organize sanctioned access to resources of a computing system.
SUBSTANCE: in accordance to the invention, operator is allowed to input the password incorrectly for up to n times, continuing the input of password; safety administrator controls the number of incorrect password inputs and blocks the input device when the allowed number of incorrect password inputs is exceeded or allows access to resources of information system being protected in case of input of correct password. Device, containing password memory block, comparison circuit, first trigger, first group of AND elements, input device, OR elements group, register, nonlinear functional transformer, first counter, second group of AND elements, first AND element, first OR element, second trigger, second OR element, second AND element, second counter, decoder and clock impulse generator, additionally features third OR element and second register.
EFFECT: expanded functional capabilities of system for identification of human operator.
1 dwg
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Authors
Dates
2008-02-20—Published
2006-10-26—Filed