Techniques for metadata processing
US9785440B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 7, 2017 |
| Grant date | Oct 10, 2017 |
| Priority date | — |
| Expiry date | Feb 7, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/452
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques are described for metadata processing that can be used to encode an arbitrary number of security policies for code running on a processor. Metadata may be added to every word in the system and a metadata processing unit may be used that works in parallel with data flow to enforce an arbitrary set of policies. In one aspect, the metadata may be characterized as unbounded and software programmable to be applicable to a wide range of metadata processing policies. Techniques and policies have a wide range of uses including, for example, safety, security, and synchronization. Additionally, described are aspects and techniques in connection with metadata processing in an embodiment based on the RISC-V architecture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.