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:
May. 16, 2017
Filed:
Jul. 11, 2011
Mihal Lazaridis, Waterloo, CA;
Mark E. Pecen, Waterloo, CA;
Scott Alexander Vanstone, Campbellville, CA;
Matthew John Campagna, Ridgefield, CT (US);
Anthony Rosati, Ottawa, CA;
Mihal Lazaridis, Waterloo, CA;
Mark E. Pecen, Waterloo, CA;
Scott Alexander Vanstone, Campbellville, CA;
Matthew John Campagna, Ridgefield, CT (US);
Anthony Rosati, Ottawa, CA;
BlackBerry Limited, Waterloo, ON, CA;
Certicom Corp., Mississauga, ON, CA;
Abstract
Methods, systems, and computer programs for trusted communication among mobile devices are described. In some aspects, information is wirelessly transmitted from a first mobile device to a second mobile device. The information permits the second mobile device to detect proximity of the first mobile device. In some implementations, the information can be wirelessly transmitted by a proximity-activated wireless interface, such as, for example, a Near Field Communication (NFC) interface. In response to the information, the first mobile device receives a message and a first authentication value wirelessly transmitted from the second mobile device to the first mobile device. A second authentication value is generated at the first mobile device based on the message and the shared secret value. Integrity of the message is verified based on comparing the first authentication value and the second authentication value.