FIELD: computer equipment.
SUBSTANCE: invention relates to computer engineering. Method of automated user authentication based on user signature, carried out by movement in the air of a mobile device, comprising the following steps: getting the first set of values of the accelerations of the mobile device of the user at each time point by MEMS accelerometer of the mobile device in the form of a digital signal, the accelerometer converts into an electric digital signal, which is conditioned so that its possible levels correspond to the input range of the analog-digital converter; processing the digital signal for the first set of acceleration values of the mobile device obtained in the previous step, by smoothing and filtering; getting the second set of values of the acceleration of the mobile device of the user at each point in time by MEMS accelerometer of the mobile device in the form of a digital signal, and the accelerometer converts into an electric digital signal, which is conditioned so that its possible levels correspond to the input range of the analog-to-digital converter; processing the digital signal for the second set of acceleration values of the mobile device obtained in the previous step, by smoothing and filtering; determining the distance between the first set of values of the accelerations of the mobile device and the second set of values of the accelerations of the mobile device; comparing the distance value determined in the previous step with a predetermined value, and identifying the user and allowing access to the mobile device in case of the distance lower than the value; not identifying the user and not allowing access to the mobile device in case of the distance greater than the value.
EFFECT: technical result is simplified authentication of the mobile device user.
5 cl, 10 dwg
