Method and system for securing data fields
US9070129B2 · kind B2 · utility
226Cited by
7References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2008 |
| Grant date | Jun 30, 2015 |
| Priority date | — |
| Expiry date | Mar 8, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/50
- WIPO fieldIT methods for management
- WIPO sectorElectrical engineering
Abstract
A merchant conducting a transaction on an account forms transaction data with a sensitive data field. To obscure the account prior to transmitting information about the transaction, for each character in the sensitive data field, a combined character is formed with a character of a generated pad. A replacement character is formed by a modulus operation on the combined character and is stored in the corresponding position in the sensitive data field. A transmission containing the sensitive data field with replacement characters is delivered to the merchant's acquirer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.