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:
Feb. 14, 2012
Filed:
Dec. 30, 2005
Michael D. Kotzin, Buffalo Grove, IL (US);
Michael D. Kotzin, Buffalo Grove, IL (US);
Motorola Inc., Schaumburg, IL (US);
Abstract
A wireless mobile device () provides challenge/response based authentication by receiving a first portion of a challenge () from an external authentication unit (), such as a network unit, and utilizes an internal partial challenge generator () that internally provides a second portion of the challenge () and provides the internally generated second portion of the challenge () back to the authentication unit (). The wireless mobile device () also includes combiner logic () that combines the externally received first portion of the challenge () with the internally produced second portion of the challenge () to produce a complete challenge (). The wireless mobile device () then utilizes a response generators () that takes the complete challenge () that was produced and generates a response () based on the complete challenge (), and other secret information () if desired using a suitable cryptographic operation. The response () is sent back to the authentication unit () for verification.