Patent ID: 9276737
Filing Date: 2016-03-01
CPC Classification: G07C,H04L,H04W

Claim Text:
1. A method of establishing a secure communication channel between a vehicle and a mobile device, comprising the steps of: providing to a call center a unique mobile device identifier and a unique vehicle telematics unit (VTU) identifier; receiving at the mobile device a first private key that is associated at least in part with the unique mobile identifier and that is associated at least in part with the unique VTU identifier, wherein the first private key is generated at a wireless service provider (WSP) and received by the mobile device within a first cryptographic envelope signed with a first cryptographic key by the WSP; and establishing a secure communication channel between the VTU and mobile device, wherein the mobile device transmits message(s) to the VTU signed with the first private key and the mobile device receives message(s) from the VTU which are signed with a second private key, wherein the second private key is associated at least in part with the unique mobile identifier and at least in part with the unique VTU identifier, wherein the VTU received the second private key from the call center or the WSP within a second cryptographic envelope signed with a second cryptographic key, wherein the second cryptographic envelope is different than the first cryptographic envelope.