RESEARCH OF EXTERNAL FACTORS INFLUENCE ON THE KEYBOARD PORTRAIT OF THE USER
The article investigates the influence of various factors on the interaction of PC user input devices information. In order to improve the reliability of identification introduced additional feature keyboard handwriting - the binary key. The sensitivity to key factors: alcohol intake, physical activity, noise, etc. As a result of specified requirements to the user keyboard invariant handwriting, which allowed not only possible to reliably identify the user, but also to assess the degree of dependence of psychophysiological state of man from environmental factors.