Multiplication operations on homomorphic encrypted data
US11196539B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 22, 2017 |
| Grant date | Dec 7, 2021 |
| Priority date | — |
| Expiry date | Aug 12, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/088
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In aspects of multiplication operations on homomorphic encrypted data, a computing device stores homomorphic encrypted data as a dataset, and implements an encryption application that can perform multiplication operations on ciphertexts in the homomorphic encrypted data, where the ciphertexts include polynomial variables of the ciphertexts. The encryption application can compute and store intermediate polynomial variables that are computed as the multiplication operations are performed. The encryption application can then utilize one or more of the intermediate polynomial variables rather than recomputing the intermediate polynomial variables as the multiplication operations are performed on the ciphertexts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.