System and method for generating collision-free identifiers for financial transaction cards
US7299974B2 · kind B2 · utility
18Cited by
3References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2005 |
| Grant date | Nov 27, 2007 |
| Priority date | — |
| Expiry date | Jan 24, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q30/0241
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
A one-way permutation over financial transaction card data provides a merchant with a unique card identifier for each financial transaction card that is used by a customer to purchase goods from a merchant. This card identifier, which is not the actual financial transaction card data, may then be permissibly stored by the merchant and used to uniquely identify the customer's financial transaction card, and may also be used to determine the frequency with which that customer makes purchases using that card.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.