Processing metadata, policies, and composite tags
US10725778B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 7, 2018 |
| Grant date | Jul 28, 2020 |
| Priority date | — |
| Expiry date | Jun 7, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2212/452
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method includes receiving, for metadata processing, a current instruction with a associated metadata tags. The metadata processing is performed in a metadata processing domain isolated from a code execution domain including the current instruction. Each respective associated metadata tag representing a respective policy of the composite policy. The associated metadata tags further including pointers to tags of a component policy of the composite policy. For each respective metadata tag, the method includes determining, in the metadata processing domain and in accordance with the metadata tag and the current instruction, whether a rule exists in a rule cache for the current instruction. The rule cache including rules on metadata used by said metadata processing to define allowed instructions. The determination of whether a rule exists resulting in a respective output. The method further includes generating a composite result tag by combining the respective outputs into a single metadata tag representing the composite policy including each respective policy.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.