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:
Mar. 10, 2015
Filed:
Sep. 14, 2012
Applicants:
David Macfarlane, Waterloo, CA;
Michael K. Brown, Fergus, CA;
Inventors:
David MacFarlane, Waterloo, CA;
Michael K. Brown, Fergus, CA;
Assignee:
BlackBerry Limited, Waterloo, Ontario, CA;
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
Before an application is allowed to execute a secure function, code signing keys associated with the application are analyzed for correspondence with the class that contains the secure function as well as correspondence with the secure function. Optionally, code signing keys associated with the application are analyzed for correspondence with the input parameters to the function.