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:
Dec. 08, 2015
Filed:
Jun. 21, 2012
Roger Paul Bowman, Kitchener, CA;
Robert Henderson Wood, Waterloo, CA;
Nicolaas Santoso Handojo, Kitchener, CA;
John Michael Agar, Kitchener, CA;
Brian Paul Neill, Burlington, CA;
Roger Paul Bowman, Kitchener, CA;
Robert Henderson Wood, Waterloo, CA;
Nicolaas Santoso Handojo, Kitchener, CA;
John Michael Agar, Kitchener, CA;
Brian Paul Neill, Burlington, CA;
BlackBerry Limited, Waterloo, CA;
Abstract
Systems and methods are provided for computing a secret shared with a portable electronic device and service entity. The service entity has a public key G and a private key g. A message comprising the public key G is broadcast to the portable electronic device. A public key B of the portable electronic device is obtained from a manufacturing server and used together with the private key g to compute the shared secret. The portable electronic device receives the broadcast message and computes the shared secret as a function of the public key G and the portable electronic device's private key b. The shared secret can be used to establish a trusted relationship between the portable electronic device and the service entity, to activate a service on the portable electronic device, and to generate certificates.