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:
Oct. 07, 2014
Filed:
Sep. 17, 2010
Eric Rescorla, Palo Alto, CA (US);
Theo Zourzouvillys, Bicester, GB;
Eric Rescorla, Palo Alto, CA (US);
Theo Zourzouvillys, Bicester, GB;
Skype, Dublin, IE;
Abstract
A communication system includes a plurality of nodes, the communication system being arranged to assign each of the plurality of nodes a certificate by means of which it can authenticate itself to other nodes in the communication system and periodically distribute to the plurality of nodes an update formed by compressing a data set representing the validity of the certificates assigned to the plurality of nodes. The update is such that a node may not be able to unambiguously determine from the update whether or not a particular certificate is valid. The system further provides the plurality of nodes with a source of information about the validity of the plurality of certificates that is different from the update and by means of which a node may resolve an ambiguity in the update regarding a particular certificate's validity.