Key agreement device and method
US10027475B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 14, 2014 |
| Grant date | Jul 17, 2018 |
| Priority date | — |
| Expiry date | Nov 21, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/805
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An initiating key-agreement device (100) and a responding key-agreement device (200) are provided, configured to generate a symmetric key shared between them. The devices are configured for generating in electronic form a private random value (112, 212), obtaining in electronic form a public set of bivariate polynomials (122) and computing a univariate polynomial (124, 222) by summing the univariate polynomials obtained by substituting the private random value (112, 212) into the polynomials of the public set (122). The devices are configured to send their computed univariate polynomial to the other device, and to compute or reconstruct the shared symmetric key (214, 312) by substituting its generated private random value (112, 212) in the received univariate polynomial.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.