公开(公告)号：US20170223005A1

公开(公告)日：2017-08-03

申请号：US15392316

申请日：2016-12-28

Applicant: Google Inc.

Inventor： Arnar Birgisson ,  Yevgeniy Gutnik ,  Bo Zhu ,  Vitaly Buka ,  Jason Reid Ederle ,  Alexey Semenov ,  Mackenzie Lee Jacoby ,  Vikas Gupta

IPC: H04L29/06

CPC classification number: H04L63/083 ,  G07C9/00174 ,  G07C2009/00769 ,  G07C2209/04 ,  H04L63/0807 ,  H04L63/101 ,  H04L2012/2841 ,  H04W4/70 ,  H04W4/80 ,  H04W12/08

Abstract: The disclosed embodiments include computerized methods, systems, and devices, including computer programs encoded on a computer storage medium, for device authentication. For example, the resource device may generate and maintain master access tokens, which may be transmitted to a computing system. The computing system may receive, from a device of an owner of the resource device, data granting a client device limited access to the resource device in accordance with various access restrictions. The computing system may generate and provide to the client device a limited version of the master access token that specifies the access restrictions. The client device may present the local access token to the resource device over a direct wireless connection, and the resource device may verify the token and grant the requested access without communication with the computing system.