Oblivious filtering of data streams
US11379384B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2019 |
| Grant date | Jul 5, 2022 |
| Priority date | — |
| Expiry date | Sep 27, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/78
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A technique for oblivious filtering may include receiving an input data stream having a plurality of input elements. For each of the input elements received, a determination is made as to whether the input element satisfies a filtering condition. For each of the input elements received that satisfies the filtering condition, a write operation is performed to store the input element in a memory subsystem. For those of the input elements received that do not satisfy the filtering condition, at least a dummy write operation is performed on the memory subsystem. The contents of the memory subsystem can be evicted to an output data stream when the memory subsystem is full. The memory subsystem may include a trusted memory and an unprotected memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.