Wireless payment with a portable device
First Claim
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1. A method for use in a portable device, comprising:
- transmitting, via a first wireless interface, an account information of a financial account to a merchant machine;
encrypting a first message using a first encryption key, said first message comprising a request to get information about said 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 second wireless interface, said fourth message on a first plurality of subcarriers;
receiving on said pre-established non-GBR bearer, a second encrypted message on a second plurality of subcarriers;
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.
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Abstract
A portable device receives an account information request signal from a merchant machine. The portable device transmits a response message to the merchant machine. The response message comprises the account information for a purchase. The portable device transmits a first message to an account server. The first message comprises a request to get information comprising the purchase amount. The portable device receives a second message comprising the information from the account server. The portable device sends the purchase amount to a display.
27 Citations
16 Claims
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1. A method for use in a portable device, comprising:
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transmitting, via a first wireless interface, an account information of a financial account to a merchant machine; encrypting a first message using a first encryption key, said first message comprising a request to get information about said 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 second wireless interface, said fourth message on a first plurality of subcarriers; receiving on said pre-established non-GBR bearer, a second encrypted message on a second plurality of subcarriers; 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A portable device, comprising:
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one or more processors; a first wireless interface; a second wireless interface; a non-transitory computer readable medium comprising executable instructions that, when executed by the one or more processors, cause the one or more processors to perform the steps of; transmit, via said first wireless interface, an account information of a financial account to a merchant machine; encrypt a first message using a first encryption key, said first message comprising a request to get information about said financial account configured in said portable device; map, by a packet filter, said encrypted first message to a pre-established non-GBR bearer; generate a fourth message by encrypting, by said portable device, said encrypted first message for an additional time employing a third encryption key; transmit on said non-GBR bearer, via said second wireless interface, said fourth message on a first plurality of subcarriers; receive on said pre-established non-GBR bearer, a second encrypted message on a second plurality of subcarriers; decrypt said second encrypted message using a fourth decryption key, said second encrypted message comprising said financial account information; decrypt said decrypted second message using a second decryption key, and storing said financial account information. - View Dependent Claims (14, 15, 16)
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Specification