SYSTEM AND METHOD FOR SECURED ACCOUNT NUMBERS IN PROXIMITY DEVICES

• US 20140249945A1
• Filed: 05/12/2014
• Published: 09/04/2014
• Est. Priority Date: 09/06/2005
• Status: Active Grant

• Current Assignee: Visa USA, Inc. (Visa, Inc.)
• Original Assignee: Visa USA, Inc. (Visa, Inc.)
• Inventors: Gauthier, Patrick, Maw, Brian, Faith, Patrick, Patterson, Barbara
• Granted Patent: US 10,289,999 B2
• Time in Patent Office: Days
• US Class Current: 705/17
• CPC Class Codes: G06Q 20/204 comprising interface for record bearing medium or carrier for electronic funds transfer or payment credit
• CPC Class Codes: G06Q 20/24 Credit schemes, i.e. "pay after"
• CPC Class Codes: G06Q 20/327 Short range or proximity payments by means of M-devices
• CPC Class Codes: G06Q 20/352 Contactless payments by cards
• CPC Class Codes: G06Q 20/385 using an alias or single-use codes
• CPC Class Codes: G06Q 20/40 Authorisation, e.g. identification of payer or payee, verification of customer or shop credentials; Review and approval of payers, e.g. check credit lines or negative lists
• CPC Class Codes: G06Q 40/02 Banking, e.g. interest calculation or account maintenance credit or loans G06Q40/03

Abstract

A method and system for using a secured account number for processing proximity types of wireless financial transactions associated with portable consumer proximity devices is disclosed. In one embodiment, the method includes receiving a proximity type of wireless financial transaction request along with a secured account number from a portable proximity consumer device such as a contactless smart card, converting the secured account number to the user'"'"'s real account number, and transmitting the financial transaction request along with the user'"'"'s real account number to the issuer of the user'"'"'s real account number for authorization and processing.

Claims

1. A portable consumer device comprising:

a processor;

a wireless transmission module;

one or more storage elements for storing a real account number and a secure account number associated with the real account number, the secured account number and the real account number being associated with the same account, wherein

when the portable consumer device is interacting with a point-of-sale terminal to conduct a transaction, the portable consumer device;

determines whether the transaction is a proximity transaction; and

provides the secured account number instead of the real account number to the point-of sale terminal via the wireless transmission module when the transaction is a proximity transaction.

2. The portable consumer device of claim 1, wherein the secured account number is dedicated for use in proximity transactions.

3. The portable consumer device of claim 1, wherein the one or more storage elements includes a first storage element and a second storage element that uses a different data storage technology than the first storage element.

4. The portable consumer device of claim 1, wherein the one or more storage elements includes a magnetic stripe for storing the real account number.

5. The portable consumer device of claim 1, wherein the one or more storage elements include a memory accessible by the processor for storing at least the secure account number.

6. The portable consumer device of claim 1, wherein the portable consumer device is in the form of a card.

7. The portable consumer device of claim 1, wherein a last plurality of digits of the secured account number is the same as the last plurality of digits of the real account number.

8. The portable consumer device of claim 1, wherein the secured account number has a different length than the real account number.

9. The portable consumer device of claim 1, wherein the secured account number and the real account number include a predetermined sequence of characters that is common to both the secured account number and the real account number.

11. The method of claim 9, wherein the real account number is provided to the point-of sale terminal when the transaction is not a proximity transaction.

12. The method of claim 9, wherein the secured account number is dedicated for use in proximity transactions.

13. The method of claim 9, wherein the real account number is dedicated for use in contact transactions or in direct entry transactions.

14. The method of claim 9, wherein the one or more storage elements includes a magnetic stripe for storing the real account number.

15. The method of claim 9, wherein the one or more storage elements include a memory accessible by the processor for storing at least the secure account number.

16. The method of claim 9, wherein the real account number is a user'"'"'s credit card account number, bank account number, or debit card account number.

17. The method of claim 9, wherein an authorization request message generated in response to the interaction between the point-of-sale terminal and the portable consumer device includes a transaction type identifier indicating whether the transaction is a proximity transaction.

18. The method of claim 9, wherein a last plurality of digits of the secured account number is the same as the last plurality of digits of the real account number.

19. The method of claim 9, wherein the secured account number has a different length than the real account number.

20. The method of claim 9, wherein the secured account number and the real account number include a predetermined sequence of characters that is common to both the secured account number and the real account number.

10. A method for conducting a transaction by a portable consumer device, the method comprising:

interacting with a point-of-sale terminal to conduct a transaction by the portable consumer device, the portable consumer device including a processor and one or more storage elements for storing a real account number and a secure account number associated with the real account number, the secured account number and the real account number being associated with the same account;

determining, by the portable consumer device, whether the transaction is a proximity transaction; and

providing the secured account number instead of the real account number to the point-of sale terminal when the transaction is a proximity transaction.