Privacy-protecting deduplication
US10979426B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2018 |
| Grant date | Apr 13, 2021 |
| Priority date | — |
| Expiry date | Sep 24, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0428
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method is disclosed. The method includes a server computer receiving, from a user device, a first encrypted biometric template, wherein the server computer stores a plurality of encrypted enrollment biometric templates, and a table comprising a plurality of encrypted match values and corresponding unencrypted match values. The server computer can then, for each of the plurality of encrypted enrollment biometric templates, input the first encrypted biometric template and an encrypted enrollment biometric template into a function to obtain an encrypted match value. The server computer can then, for each of the plurality of encrypted enrollment biometric templates, determine if the encrypted match value corresponds to an unencrypted match value using the table, wherein the unencrypted match value is greater than a threshold. The server computer can then provide a notification to the user device or another device associated with the unencrypted match value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.