Some current mobile devices authenticate users by verifying the user’s fingerprint, the user’s face, etc. Smartphones and other mobile devices are increasingly being designed to be smaller and thinner, with displays occupying a proportionately larger area of the surface of the device. Consequently, there is less area available near the top and bottom of the screen to place fingerprint or camera-based authentication hardware.
When users permit use of such data, techniques of this disclosure make advantageous use of unique electrical parameters of the human body, e.g., resistance, capacitance, and/or inductance between the fingers of a user’s hand to authenticate the user. Standard electrical sensors are placed unobtrusively on the sides of the mobile device and are configured to measure a bioelectrical signature of the user. In this manner, user authentication is performed without use of traditional hardware, e.g., fingerprint or face recognition sensors, thereby freeing up additional space for display.
Robbins, Matthew, "Authentication based on bioelectrical parameters", Technical Disclosure Commons, (November 22, 2017)