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:
Aug. 25, 2015

Filed:

May. 21, 2013
Applicant:

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

Inventor:

Max Pritikin, Boulder, CO (US);

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 9/32 (2006.01); H04L 9/00 (2006.01);
U.S. Cl.
CPC ...
H04L 9/3268 (2013.01); H04L 9/006 (2013.01); H04L 9/3263 (2013.01); H04L 63/0823 (2013.01);
Abstract

In one implementation, a public key infrastructure utilizes a two stage revocation process for a set of data. One stage authenticates or revokes the set of data based on the status of the digital signature and another stage authenticates or revokes the set of data based on the status of an individual signature by the digital certificate. For example, a digital certificate based is assigned a certificate number. A serial number is assigned for a signature for the set of data as signed by the digital certificate. A data transmission, data packet, or install package includes the set of data, the certificate number and the serial number. Therefore, individual instances of the signature may be revoked according to serial number.


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