Patent ID: 9659160
Date: 2017-05-23
CPC Classifications: G06F,H04L

Claim:
1. A method of authentication using at least two user devices, the method comprising: registering each user device of a plurality of user devices with an authenticator computing device, wherein each user device of the plurality of user devices are registered to at least one user; receiving, at the authenticator computing device, a request to access a resource from one user device of the plurality of user devices registered with the authenticator computing device; generating an authentication challenge at the authenticator computing device in response to the request to access a resource; determining, at the authenticator computing device, that at least two user devices of the plurality of user devices registered with the authenticator computing device are registered to the at least one user and in response to the authenticator computing device determining that at least two user devices of the plurality of user devices registered with the authenticator computing device are registered to the at least one user, transmitting the authentication challenge to a subset of user devices of the plurality of user devices registered with the authenticator computing device, wherein the subset of user devices registered with the authenticator computing device comprises at least one user device other than the one user device requesting access to the resource, wherein user devices of the subset of user devices registered with the authenticator computing device have not been authenticated by the authenticator computing device and wherein the one user device requesting access to the resource has not been authenticated by the authenticator computing device; generating a response to the authentication challenge at each user device of the subset of user devices; transmitting the response generated at each user device of the subset of user devices to the authenticator computing device; determining, at the authenticator computing device, whether the response generated at each user device of the subset of user devices constitutes a valid response to the authentication challenge; and granting at least one user device of the plurality of user devices registered with the authenticator computing device access to the resource when the response generated at each user device of the subset of user devices constitutes a valid response to the authentication challenge.