Providing secure input to a system with a high-assurance execution environment
US7882566B2 · kind B2 · utility
0Cited by
4References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 25, 2008 |
| Grant date | Feb 1, 2011 |
| Priority date | — |
| Expiry date | Nov 25, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/02
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods for maintaining the security of a secured execution environment on a system comprising said secured execution environment and a second execution environment are disclosed. A maintained current state for the secured execution environment is selected from among a group of possible states including a standard input mode state and a nexus input mode state. A flow of user input is directed according to the current state through a secure kernel of both the second environment and the secured execution environment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.