Encryption using multi-level encryption key derivation
US10904231B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2017 |
| Grant date | Jan 26, 2021 |
| Priority date | — |
| Expiry date | Sep 7, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0884
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Data may be encrypted using a derived block encryption key for each of at least one append blocks of data. A data operation associated with manipulating particular data associated with a user may be received. The particular data may comprise at least one append block of data. In response to the received data operation, for each append block of data of the at least one append block of data, parameters associated with deriving a block encryption key for a given append block of data of the at least one append block of data may be accessed. The parameters may comprise at least a data encryption key associated with the user and a nonce. A block encryption key may be derived for the given append block of data utilizing the parameters. The given append block of data may be encrypted utilizing the block encryption key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.