Gesture and motion detection using a device radar component for user authentication

A method comprising:

• receiving an access request from a device of a first user;
• determining a challenge selected by a second user that authenticates the first user for the access request;
• determining a physical user parameter associated with a body of the first user that is associated with a completion of the challenge by the first user;
• accessing a transaction history for the first user, wherein the transaction history has a plurality of previous transactions engaged in by the first user over a time period;
• determining, based on the challenge, two or more of the plurality of previous transactions at two or more locations and descriptive information corresponding to the one or more items in the two or more of the plurality of previous transactions;
• generating, by a service provider based on user data for the first user, the challenge, and the physical user parameter, a three-dimensional authentication process associated with the service provider, wherein the three-dimensional authentication process comprises the challenge to perform a three-dimensional gesture by the first user that is captured using radio waves by a radar component of the device, and wherein the completion of the challenge during the three-dimensional authentication process requires that the first user identify the two or more locations and the descriptive information corresponding to the one or more items when performing the three-dimensional gesture;
• and
• transmitting the three-dimensional authentication process to the device of the first user.

A system comprising:

• a non-transitory memory storing instructions;
• and
• one or more hardware processors coupled to the non-transitory memory and configured to read the instructions from the non-transitory memory to cause the system to perform operations comprising:
• receiving, by an authentication server, a request to authenticate a user;
• determining a challenge selected by another user that authenticates the user for the request;
• determining a physical user parameter associated with a body of the user that is associated with a completion of the challenge by the user;
• accessing a transaction history for the user, wherein the transaction history has a plurality of previous transactions engaged in by the user over a time period;
• determining, based on the challenge, two or more of the plurality of previous transactions at two or more locations and one or more items in the two or more of the plurality of previous transactions;
• responsive to the request, generating an authentication query comprising the challenge to perform a three-dimensional action by the user based on data specific to the user and the physical user parameter, wherein the completion of the challenge during the authentication query requires that the user identify the two or more locations and the one or more items when performing the three-dimensional action;
• transmitting the authentication query to a device of the user;
• receiving radar data captured by the device using a radar component responsive to the authentication query, wherein the radar data comprises a movement of the user detected using the radar component;
• and
• authenticating the user based on the three-dimensional action and the radar data for the authentication query.