Data access control using data block level decryption
US11176264B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2019 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | May 11, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/402
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An information security system that includes a data control engine configured to receive a data request identifying a first reference tag that is associated with a data file. The data control engine is further configured to identify a first set of encrypted data blocks that are linked with the reference tag and location information for the first set of encrypted data blocks from a data information table. The data control engine is further configured to extract the first set of data blocks from a memory based on the location information. The data control engine is further configured to identify access keys associated with the first set of encrypted data blocks from the data information table and to decrypt the first set of encrypted data blocks using the identified access keys. The data control engine is further configured to reconstruct the data file using the decrypted first set of data blocks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.