Securely processing range predicates on cloud databases
US10055602B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 19, 2016 |
| Grant date | Aug 21, 2018 |
| Priority date | — |
| Expiry date | Sep 17, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0618
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods, systems, and computer program products for securely processing range predicates on cloud databases are provided herein. A computer-implemented method includes separately encrypting a set of plain text data using two or more encryption functions, thereby producing an encrypted domain comprising at least two distinct groups of encrypted data items; converting a range query over plain text data items into a query over at least one of the distinct groups of encrypted data items; and combining results from the query over the distinct groups of encrypted data items, thereby generating a final encrypted result to the range query.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.