Luhn validation and data security across multiple active domains
US8812844B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2012 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Nov 10, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0891
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for maintaining data security using Luhn validation in a multiple domain computing environment are presented. Each domain includes a token generator that can generate tokens associated with sensitive data such as credit card numbers. The token generation algorithm includes a Luhn validation routine for producing a tokenized data string that either passes or fails Luhn. The possibility of token collision is eliminated by a token generation algorithm that embeds a domain designator corresponding to the active domain where the token was created. When multiple tokens represent the same sensitive data, the token manager returns a set of all such tokens found.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.