Privacy-preserving data deduplication
US12323401B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2023 |
| Grant date | Jun 3, 2025 |
| Priority date | — |
| Expiry date | Feb 24, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/06
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method includes a server computer receiving, from a first data provider computer, encrypted data derived from first identity data and a cryptographic key or derivative thereof stored at the first data provider computer. The server computer transmits, to a second data provider computer, the encrypted data and/or the cryptographic key or derivative thereof. The server computer receives, from the second data provider computer, intermediate data derived from second identity data stored at the second data provider computer. The server computer determines if the first identity data and the second identity data are duplicates while the first identity data and the second identity data are encrypted. The server computer removes one of encrypted first identity data, derived from the first identity data, and encrypted second identity data, derived from the second identity data, from a memory in the server computer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.