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:
Jul. 23, 2019
Filed:
Oct. 30, 2015
Blackberry Limited, Waterloo, CA;
Daniel Jonas Major, Ottawa, CA;
Michael Alievsky, Ottawa, CA;
Robert David Turner, Kanata, CA;
Adam Richard Schieman, Mississauga, CA;
BlackBerry Limited, Waterloo, Ontario, CA;
Abstract
Described are a method and system of authorizing software execution on a computing device having a processor, the device storing a production key associated with software authorized for end-user release and storing a pre-release key associated with software not authorized for end-user release. The method includes determining that a signed software image is not signed with the production key; determining that the device has stored in memory thereon a pre-release token, the pre-release token containing data uniquely identifying the device and identifying the pre-release key; validating the pre-release token; and authenticating the signed software image using the pre-release key and, in response, permitting execution of the software image.