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. 07, 2016
Filed:
Jul. 08, 2011
Applicants:
Ian Robertson, Waterloo, CA;
Roger Paul Bowman, Kitchener, CA;
Robert Henderson Wood, Waterloo, CA;
Inventors:
Assignee:
BlackBerry Limited, Waterloo, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 9/30 (2006.01); G06F 9/22 (2006.01); G06F 21/30 (2013.01); H04L 29/06 (2006.01);
U.S. Cl.
CPC ...
G06F 9/30178 (2013.01); G06F 9/223 (2013.01); G06F 21/30 (2013.01); H04L 63/08 (2013.01);
Abstract
Augmented processor hardware contains a microcode interpreter. When encrypted microcode is included in a challenge from a service requiring authentication, the microcode may be passed to the microcode interpreter. Based on decryption and execution of the microcode taking place at the processor hardware, tampering by potentially abusive device software may be avoided.