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.

Date of Patent:
Jan. 30, 2024

Filed:

Apr. 24, 2020
Applicant:

Cisco Technology, Inc., San Jose, CA (US);

Inventors:

Matthew Scott Robertson, Santa Clara, CA (US);

David McGrew, Poolesville, MD (US);

Timothy David Keanini, Austin, TX (US);

Sunil Amin, Atlanta, GA (US);

Ellie Marie Daw, Raleigh, NC (US);

Assignee:

CISCO TECHNOLOGY, INC., San Jose, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/40 (2022.01); H04L 9/08 (2006.01); H04L 9/32 (2006.01); H04L 9/06 (2006.01);
U.S. Cl.
CPC ...
H04L 63/20 (2013.01); H04L 9/088 (2013.01); H04L 9/0825 (2013.01); H04L 9/0844 (2013.01); H04L 9/3268 (2013.01); H04L 63/105 (2013.01); H04L 9/0643 (2013.01);
Abstract

In one embodiment, a service receives captured traffic flow data regarding a traffic flow sent via a network between a first device assigned to a first network zone and a second device assigned to a second network zone. The service identifies, from the captured traffic flow data, one or more cryptographic parameters of the traffic flow. The service determines whether the one or more cryptographic parameters of the traffic flow satisfy an inter-zone policy associated with the first and second network zones. The service causes performance of a mitigation action in the network when the one or more cryptographic parameters of the traffic flow do not satisfy the inter-zone policy associated with the first and second network zones.


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