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:
Sep. 18, 2012
Filed:
Nov. 30, 2009
Minghua Qu, Mississauga, CA;
Scott A. Vanstone, Campbellville, CA;
Minghua Qu, Mississauga, CA;
Scott A. Vanstone, Campbellville, CA;
Certicom Corp., Mississauga, ON, CA;
Abstract
A method of generating a public key in a secure digital communication system, having at least one trusted entity CA and subscriber entities A. For each entity A, the trusted entity selects a unique identity distinguishing the entity A. The trusted entity then generates a public key reconstruction public data of the entity A by mathematically combining public values obtained from respective private values of the trusted entity and the entity A. The unique identity and public key reconstruction public data of the entity A serve as A's implicit certificate. The trusted entity combines the implicit certificate information with a mathematical function to derive an entity information ƒ and generates a value kby binding with ƒ with private values of the trusted entity. The trusted entity transmits the value kto the entity to permit A to generate a private key from k, A's private value and A's implicit certificate. The entity A's public key information may be reconstructed from public information, and A's implicit certificate.