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:
Nov. 21, 2017
Filed:
Nov. 02, 2015
Blackberry Limited, Waterloo, CA;
Certicom Corp., Mississauga, CA;
Robert John Lambert, Cambridge, CA;
Daniel Richard L. Brown, Mississauga, CA;
Atsushi Yamada, Etobicoke, CA;
BlackBerry Limited, Waterloo, Ontario, CA;
Certicom Corp., Mississauga, Ontario, CA;
Abstract
In some aspects, an encryption method comprises encrypting a first portion of a message using a first secret key. The first secret key is generated based on the public key of an entity. A one-way function is used to generate a second secret key from the first secret key, and the first secret key is subsequently discarded. A second portion of the message is encrypted using the second secret key. The encrypted first portion of the message and the encrypted second portion of the message are provided to the entity.