Virtual machine device having key driven obfuscation and method
US10191754B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2012 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | Sep 14, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/6245
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A virtual machine device 100 comprising multiple operation routines 122,124, 126 each configured to perform a particular instruction, and a selector 110 configured to receive an encoded instruction, the encoded instruction being obtained by encoding a plain instruction with a code encoding, the selector is configured to select and activate a corresponding operation routine of the multiple operation routines, the corresponding operation routine is configured to perform the plain instruction corresponding to the encoded instruction, the selector 100 comprises a look-up means for looking-up an encoded instruction to select the corresponding operation routine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.