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:
Jun. 25, 2019
Filed:
Jun. 06, 2016
Motorola Solutions, Inc., Schaumburg, IL (US);
Chris A. Kruegel, Plainfield, IL (US);
Michael F. Korus, Eden Prairie, MN (US);
Katrin Reitsma, Chicago, IL (US);
MOTOROLA SOLUTIONS, INC., Chicago, IL (US);
Abstract
Method and management server for revoking group server identifiers of compromised group servers. One method includes determining, with a management server, an identity-based cryptographic signing key based on a group server identifier. The method also includes distributing, via the management server, the identity-based cryptographic signing key to a group server. The method further includes receiving, at the management server, a security status indicating that the security of the group server is compromised. The method also includes, responsive to receiving the security status, distributing, via the management server, a revocation of the group server identifier to a plurality of communication devices.