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:
Mar. 17, 2020
Filed:
Aug. 27, 2019
Applicant:
Farsight Security, Inc., San Mateo, CA (US);
Inventor:
Paul Vixie, Redwood City, CA (US);
Assignee:
FARSIGHT SECURITY, INC., San Mateo, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 29/12 (2006.01); H04L 29/08 (2006.01);
U.S. Cl.
CPC ...
H04L 63/0263 (2013.01); H04L 61/1511 (2013.01); H04L 63/0236 (2013.01); H04L 63/0272 (2013.01); H04L 63/0428 (2013.01); H04L 63/20 (2013.01); H04L 67/02 (2013.01);
Abstract
In an embodiment, a computer-implemented method prevents use of a network protocol over an encrypted channel. In the method, a packet is received on an encrypted channel addressed to a network address. It is determined whether a network host at the network address is able to service a request formatted according to the network protocol over the encrypted channel. When the network host is determined to be able to resolve to a domain name over the encrypted channel, the network packet is blocked.