Salting text and fingerprinting in database tables, text files, and data feeds
US11188301B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2017 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | Sep 14, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/608
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method for salting and fingerprinting database tables, text files, data feeds, and the like, first resorts the data according to a field or fields in the data set. A salting recipe is selected and applied to the sorted data. A fingerprint of the data is captured after sorting and salting. The data is then restored to its original order before being sent to a trusted third party. Because the data owner retains information concerning the sorting sorting sonar technique, salting technique, and the fingerprint, the data owner can reconstruct the unsalted file from the salted file, and can determine if a wild file contains data from the data file. The salting is difficult to detect by the bad actor, even if the bad actor is aware that the data has been salted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.