The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 25, 2020
Filed:
Dec. 13, 2017
Google Llc, Mountain View, CA (US);
Scott Atwood, Campbell, CA (US);
Artem Malyshev, Kilchberg, CH;
Google LLC, Mountain View, CA (US);
Abstract
To authenticate a service request, a first server receives a handshake request from a client application. The first server transmits a first nonce to the client application. The first server sends a second nonce and the handshake request to a second server. The second nonce may be a key for decrypting the first nonce, or it may be a separate nonce. The first server stores a result of an operation performed on the first and second nonces. The client application receives a push notification with the second nonce from the second server via a secure and authenticated communication channel. The client application also performs an operation on the nonces to generate a candidate result, which it sends to the first server. If the candidate result matches the stored result, the first server will send the client application a token that grants access to a service.