Controlled data access
US11853451B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 16, 2021 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Jun 17, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/107
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for providing and searching a searchable encrypted database. The system obtains plain text data and first and second encryption keys. The plain text data is parsed using a priori knowledge of the plain text data structure to identify data blocks and associated metadata components. The data blocks are encrypted using the first encryption key to provide encrypted data blocks. The metadata components are encrypted with the second encryption key to provide encrypted metadata components. The encrypted data blocks and encrypted metadata components are stored in a storage vault to provide a searchable encrypted database whilst discarding the plain text data and the first encryption key. A search term is encrypted with the second encryption key to provide an encrypted search term used to search the searchable encrypted database to determine whether it matches one or more of the encrypted metadata components, and a search result is returned.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.