User authentication of smart speaker system

A system for authenticating a user comprising:

• an authentication server configured to manage a user authentication session;
• a smart speaker system in electronic communication with the authentication server, the smart speaker system configured to manage user data corresponding with the user authentication session;
• and
• a mobile device in wireless communication with the authentication server and the smart speaker system, the mobile device configured to manage passwords corresponding with the user authentication session, wherein the mobile device comprises a user authentication server interface for registering a guest on the smart speaker system, wherein the user authentication server interface is configured to set a plurality of guest conditions for the guest by the user.

A method for authenticating a user utilizing a smart speaker system, the method comprising:

• requesting a user authentication session by issuing a voice command to a smart speaker by the user;
• in response to the requesting the user authentication session, generating an OTP by the authentication server;
• encoding the OTP into a sonic OTP by the authentication server wherein the sonic OTP encoding requires that each OTP bit is coded in a narrow band spread spectrum audio signal centered at a far end of a decodable audio spectrum;
• sending the sonic OTP to the smart speaker system;
• playing a sonic one-time password (OTP) on the smart speaker received from an authentication server in response to the requesting the user authentication session;
• receiving the sonic OTP by a mobile device of the user;
• transmitting a decoded OTP decoded from the sonic OTP to the authentication server by the mobile device;
• and
• authorizing the user by the authentication server to execute a secure transaction using the smart speaker system.