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:
Sep. 21, 2021

Filed:

Nov. 16, 2018
Applicant:

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

Inventors:

Justin J. Muller, San Jose, CA (US);

Katherine O'Keeffe, San Francisco, CA (US);

Carlos M. Pignataro, Cary, NC (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/08 (2006.01); G06F 16/27 (2019.01); H04L 9/06 (2006.01); G06F 21/60 (2013.01);
U.S. Cl.
CPC ...
H04L 9/0866 (2013.01); G06F 16/27 (2019.01); G06F 21/602 (2013.01); H04L 9/0637 (2013.01); H04L 9/0643 (2013.01); H04L 63/0428 (2013.01); H04L 2209/38 (2013.01);
Abstract

In one example, a network entity obtains a network packet including data. The network entity performs a deterministic mathematical computation on the data to produce a string of characters derived from the data and inserts an indication of the string of characters into the network packet. The network entity provides the indication of the string of characters to a distributed ledger based on a secret unique identifier of the network entity. The distributed ledger stores the indication of the string of characters and records an indication of a time at which the indication of the string of characters was stored in the distributed ledger. The network entity obtains, from the distributed ledger, the indication of the time and inserts the indication of the time into the network packet. The network entity provides the network packet towards a destination.


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