Method, apparatus, and system for providing a homomorphic cryptosystem
US11283620B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 1, 2019 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Feb 26, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An approach is provided for a homomorphic cryptosystem for use in resource-constrained environments (e.g., vehicle-based use cases) or when computer resources are to be conserved. The approach involves, for example, generating a nonce at a first device (e.g., vehicle engine control unit (ECU)). The approach also involves performing a homomorphic operation on the nonce and a ciphertext to generate a resulting cipher. The ciphertext is provided by a second device (e.g., a data server). The approach further involves attaching the resulting cipher to a request payload (e.g., to request secure data from the data server). The approach further involves transmitting the request payload including the nonce to the second device (e.g., the server).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.