Portable encryption device with multiple keys
US12250318B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2022 |
| Grant date | Mar 11, 2025 |
| Priority date | — |
| Expiry date | Feb 14, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0894
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A device (100;120;140) and method (600) for storing encryption keys are provided. The device comprises: a first connector for connection to a computer, an internal memory (104); an input module (101); and an authentication module (103) for receiving user identification information, via the input module, from a user. The authentication module is configured to check received user identification information against stored user identification information stored on the internal memory to determine if a user is a valid user. A first data encryption key, DEK, is stored in encrypted form on the internal memory and is associated with the stored user identification information of a first plurality of user identities, and a second DEK is stored in encrypted form on the internal memory and is associated with the stored user identification information of a second, different, plurality of user identities. When a user enters user identification information corresponding to stored user identification information of one of the first plurality of user identities, the authentication module is configured to decrypt the first DEK for use by the user. When a user enters user identification information c…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.