Patent ID: 8116733
Filing Date: 2012-02-14
Classification: H04L,H04W

Abstract:
1. A wireless mobile device for providing challenge/response based authentication comprising: a wireless transceiver operative to receive a first portion of a challenge from an external authentication unit; an internal partial challenge generator, operatively coupled to the wireless transceiver, operative to provide internally, a second portion of the challenge and to provide the internally generated second portion of the challenge without the first portion to the wireless transceiver for transmission for the authentication unit; combiner logic, operatively coupled to the internal partial challenge generator, and operative to combine the externally received first portion of the challenge with the internally produced second portion of the challenge to produce a complete challenge; and a response generator, operatively coupled to the wireless transceiver, and operative to produce a response from the complete challenge for transmission to the external authentication unit, wherein the response for transmission is the same response generated from the complete challenge.