Updatable private set intersection
US12367198B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2024 |
| Grant date | Jul 22, 2025 |
| Priority date | — |
| Expiry date | Jul 26, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/50
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
“Updatable” private set intersection (PSI) protocols allow parties that each have an updatable private set to determine the intersection of their sets after an update without the need to compare each element of each set and without compromising privacy. In some protocols, a first party can determine an update to the intersection by determining an intersection of elements that were previously in the first party's set with elements that were added to the second party's set and determining an intersection of elements that were added to the first party's set with elements that are in the second party's (updated) set. In some protocols, both parties can determine the updated intersection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.