Patent ID: 8433657

Claim:
A method executed on a portable device, comprising: receiving, via a first wireless receiver, an account information request signal from a merchant machine; transmitting, via a first wireless transmitter, a response message to said merchant machine, said response message comprising said account information for said merchant machine; encrypting a first message using a first encryption key, said first message comprising a request to get information about a financial account configured in said portable device; mapping, by a packet filter, said encrypted first message to a pre-established non-GBR bearer; generating a fourth message by encrypting, by said portable device, said encrypted first message for an additional time employing a third encryption key; transmitting on said non-GBR bearer, via a first transmitter, said fourth message on a first plurality of subcarriers of an OFDM wireless network; receiving on said pre-established non-GBR bearer, via a first receiver, a second encrypted message on a second plurality of subcarriers of said OFDM wireless network decrypting, by said portable device, said second encrypted message using a fourth decryption key, said second encrypted message comprising said financial account information; decrypting, by said portable device, said decrypted second message using a second decryption key, and storing said financial account information; and sending to a display at least a portion of said financial account information.