Predicated control flow and store instructions for native code module security
US8819399B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2009 |
| Grant date | Aug 26, 2014 |
| Priority date | — |
| Expiry date | Sep 4, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2221/033
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Some embodiments provide a system that executes a native code module. During operation, the system obtains the native code module. Next, the system loads the native code module into a secure runtime environment. Finally, the system safely executes the native code module in the secure runtime environment by using a set of software fault isolation (SFI) mechanisms that use predicated store instructions and predicated control flow instructions, wherein each predicated instruction from the predicated store instructions and the predicated control flow instructions is executed if a mask condition associated with the predicated instruction is met.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.