FIELD: information technology.
SUBSTANCE: invention relates to speech recognition. Method for assessing variability of a pass phrase comprising obtaining a pass phrase from the user and estimating its variability, characterized by the fact that a pass phrase is obtained from the user in the form of acoustic phrase, acoustic pass phrase is converted in sequence of acoustic criteria, sequence of predefined speech features is calculated by said acoustic phrase and the pass phrase variability is determined by these criteria, then certain pass phrase variability is compared with predefined limit.
EFFECT: provision of reliable evaluation of the pass phrases variability.
6 cl, 7 dwg
