Obscuring information in virtualization environment
US11556365B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2019 |
| Grant date | Jan 17, 2023 |
| Priority date | — |
| Expiry date | Feb 26, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/121
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A hardware request of an application is detected. The Application executes on a virtualized computer system. It is determined that the hardware request includes a counter. The counter is to be performed by the virtualized computer system. The counter includes a counter value. The hardware request is intercepted before the it is processed by a hypervisor that hosts the virtualized computer system. The interception is based on the determining the hardware request includes the counter. The counter value is saved in a secure memory. The secure memory is obscured from the hypervisor. A scrambled counter value is generated. The hardware request is updated with the scrambled counter value. After the hardware request is updated it is provided to the hypervisor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.