Database server and client for query processing on encrypted data
US9875370B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2015 |
| Grant date | Jan 23, 2018 |
| Priority date | — |
| Expiry date | May 22, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/008
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods, systems, apparatuses, and computer program products are provided for secure handling of queries by a data server (DS) and a database application (DA). A parameterized query is received by the DS from the DA based on a user query received from a requestor. The DS analyzes the parameterized query to attempt to determine an encryption configuration for a transformed version of the user query capable of being evaluated by the DS on encrypted data values. The DS responds to the DA with either a failure to determine the encryption configuration, or by providing the determined encryption configuration to the DA. The DA generates the transformed version of the user query, and provides the transformed version to the DS. The DS evaluates the transformed version of the user query, and provides results to the DA. The DA decrypts the results, and provides the decrypted results to the requestor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.