Abstract: A method and system for user authentication on a touch-screen device using an authentication token. A housing of the authentication token includes several electrodes. At least one of the electrodes is located on the upper side of the token in order for the user to hold the token. The token is applied onto a touch-screen of the user mobile device by the user holding the electrode. Other electrodes are located on the other (lower) side of the token housing. These electrodes come in contact with the touch-screen during the authentication procedure. The token contains executive units connected to the electrode held by the user and to at least one of the electrodes applied to the touch-screen. Since the electric connection between the token electrodes exists, the touch-screen sensors register a touch at the point of application of the electrode(s).

Abstract: A method and system for user authentication on a touch-screen device using an authentication token. A housing of the authentication token includes several electrodes. At least one of the electrodes is located on the upper side of the token in order for the user to hold the token. The token is applied onto a touch-screen of the user mobile device by the user holding the electrode. Other electrodes are located on the other (lower) side of the token housing. These electrodes come in contact with the touch-screen during the authentication procedure. The token contains executive units connected to the electrode held by the user and to at least one of the electrodes applied to the touch-screen. Since the electric connection between the token electrodes exists, the touch-screen sensors register a touch at the point of application of the electrode(s).