Patent ID: 11956243
Assignee: PAYPAL, INC.
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A token-based authentication method, the method comprising:
receiving, by a server from a requesting computing system, an authentication request for authenticating a client device with a certain application service, the authentication request comprising an electronic encrypted authentication token, the authentication request indicating that the requesting computing system received the authentication token from the client device, the authentication token associated with a user account;
decrypting the encrypted authentication token;
verifying that the decrypted authentication token matches an expected token value for the user account; and
responsive to the verifying of the decrypted authentication token, sending, by the server to the requesting computing system, certain user information authorized to be shared with one or more entities including the requesting computing system, the sending of the certain user information causing the requesting computing system to perform the authentication of the client device with the certain application service based on the certain user information, without communication of the certain user information between the client device and the requesting computing system.