Hybrid system and method for secure collaboration using homomorphic encryption and trusted hardware
US11095428B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2019 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Mar 1, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/46
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A device, system and method for secure collaborations on encrypted data in a hybrid environment of a homomorphic encryption (HE) enabled device and trusted hardware. A set of computations may be divided into a subset of linear computations and a subset of non-linear computations. The linear computations on the encrypted data may be executed using homomorphic encryption (HE) in the homomorphic encryption (HE) enabled device. The non-linear computations on the unencrypted data may be executed in the trusted hardware in an unencrypted domain and encrypting the result. The results of the linear and non-linear computations may be decrypted and merged to generate a result equivalent to executing the set of linear and non-linear computations on the unencrypted data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.