US 11,991,170 B2
User authentication through registered device communications
Myles Conley, Seattle, WA (US); and Aaron Michael Brown, Seattle, WA (US)
Assigned to AMAZON TECHNOLOGIES, INC., Seattle, WA (US)
Filed by Amazon Technologies, Inc., Seattle, WA (US)
Filed on Jun. 8, 2021, as Appl. No. 17/342,266.
Application 17/342,266 is a division of application No. 16/017,709, filed on Jun. 25, 2018, granted, now 11,057,375.
Prior Publication US 2021/0306329 A1, Sep. 30, 2021
Int. Cl. H04L 29/06 (2006.01); H04L 9/40 (2022.01)
CPC H04L 63/0853 (2013.01) [H04L 63/0876 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
receiving, via at least one of one or more computing devices, an authentication request from a first client device;
generating an authentication token;
sending, via the at least one of the one or more computing devices, the authentication token to the first client device where the first client device encrypts the authentication token based at least in part on a user authenticating factor and stores the encrypted authentication token on the first client device;
requesting, to at least the first client device and a second client device, one or more authentication tokens for a user to access a user account, wherein both the first client device and the second client device are registered to the same user account; and
authenticating, via the at least one of the one or more computing devices, the user for access to the user account based at least in part on the first client device providing the authentication token and determining that at least the authentication token is valid.