Symmetrically encrypt a master passphrase key
US11283600B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 20, 2017 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Oct 12, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3226
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Examples disclosed herein relate to symmetrically encrypting a master passphrase key. In one implementation, a computing system includes a machine-readable storage medium to store a symmetrically encrypted master passphrase key, an encrypted version of a first passphrase key associated with a second machine-readable storage medium encrypted using the master passphrase key, and an encrypted version of a second passphrase key associated with a third machine-readable storage medium encrypted using the passphrase key. A processing resource may symmetrically encrypt the master passphrase key using an encryption key derived from authentication information and/or decrypt the stored master passphrase key using a decryption key derived from the authentication information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.