Method and apparatus for device state based encryption key
US9891969B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 26, 2016 |
| Grant date | Feb 13, 2018 |
| Priority date | — |
| Expiry date | Aug 5, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/80
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and a method for encrypting and decrypting data in a device are provided. The apparatus includes a processor and a memory. The processor is configured to transmit a data command from an application to an encryption driver that executes in a kernel space, determine if the application is authenticated to perform the data command based on an access policy, transmit, when the application is authenticated, a first key to a cryptographic library that executes in an application space, and perform the data command based on the first key after receiving a response via the cryptographic library. The first key is stored in an encryption driver in the kernel space and is not available to applications in the application space.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.