Method of obfuscating relationships between data in database tables
US10515231B2 · kind B2 · utility
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48References
15Claims
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Key dates
| Filing date | Nov 8, 2013 |
| Grant date | Dec 24, 2019 |
| Priority date | — |
| Expiry date | Nov 15, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/6227
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Relationships between data in database tables are obfuscated. An input data set is divided into two database tables with corresponding rows. A key field if created in a second one of the tables, and for each row, the field is populated with a value generated with a one-way function, using a unique value associated with the corresponding row of the first one of the tables as an input. The two tables are stored in a data store, so that the data in corresponding rows may be associated only with access to the one way function, and the unique value associated with a row of the first table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.