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:
Jul. 24, 2018
Filed:
May. 06, 2016
Applicant:
Cloudflare, Inc., San Francisco, CA (US);
Inventors:
Nicholas Thomas Sullivan, San Francisco, CA (US);
Olafur Gudmundsson, Chevy Chase, MD (US);
Filippo Valsorda, Tortona, IT;
Assignee:
CLOUDFLARE, INC., San Francisco, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 29/12 (2006.01); H04L 29/08 (2006.01);
U.S. Cl.
CPC ...
H04L 63/0281 (2013.01); H04L 61/1511 (2013.01); H04L 63/12 (2013.01); H04L 67/2819 (2013.01);
Abstract
A first DNS server receives, from a client device, a DNS query for a domain name and transmits, to a second DNS server, the DNS query for the domain name. The first DNS server receives, from the second DNS server, an answer to the DNS query that is unsigned. The first DNS server signs the received answer to the DNS query and transmits, to the client device, the signed DNS answer.