Software diversification in external contexts
US10303861B2 · kind B2 · utility
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13References
46Claims
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Key dates
| Filing date | Jan 15, 2018 |
| Grant date | May 28, 2019 |
| Priority date | — |
| Expiry date | Jan 15, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/45558
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention features a system in which dynamic code randomization may be used in concert with enforcement-based mitigation policies to optimally secure a software code. A privileged, external execution context is employed when rewriting (randomizing) the software code. The rewritten code is then reloaded and executed in a less privileged execution context. Finally, the system ensures that the less privileged execution context is authorized to load and execute the code before rewriting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.