Blind cloud data leak protection
US10397193B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2016 |
| Grant date | Aug 27, 2019 |
| Priority date | — |
| Expiry date | Jan 10, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods for blind data leak prevention are provided. A first computer can determine if encrypted data matches a rule even without the encryption key used to encrypt the data. The first computer may encrypt the rule with a second encryption key and send the encrypted rule to a second computer, which may then encrypt the rule with the first encryption key—that is inaccessible to the first computer—and send the doubly encrypted rule back to the first computer. The first computer can then partially decrypt the rule using the second encryption key. The second computer can then encrypt data with the first encryption key and send to the first computer. The first computer can then determine if the partially encrypted rule matches the encrypted data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.