Enhanced encryption for face-related data
US11496288B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 8, 2022 |
| Grant date | Nov 8, 2022 |
| Priority date | — |
| Expiry date | Apr 8, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3231
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method includes obtaining a plurality of representative vectors associated with face-related data. The method includes determining an encryption key based on a parameter stored in a record, generating an encrypted vector set by, for each respective vector of the plurality of representative vectors, encrypting the respective vector with a homomorphic encryption operation based on the encryption key, where the encrypted vector set includes a first encrypted vector that is linked to a subset of the face-related data associated with the first plurality of face vectors. The method further includes obtaining an encrypted face search vector using the encryption key to perform homomorphic encryption. The method further includes selecting a first encrypted vector based on the encrypted face search vector and retrieving the subset of the face-related data based on the first encrypted vector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.