Key agreement devices and method
US11050557B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 2, 2018 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Jun 21, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3026
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A first electronic network node (110) is provided configured for a key exchange (KEX) protocol, the first network node is configured to obtain a shared polynomial (a) shared with a second network node, coefficients of the shared polynomial a being selected modulo a first modulus q, generate a private key polynomial (skI), coefficients of the private key polynomial being bounded in absolute value by a bound (s) generate a public key polynomial (pkI) by computing a polynomial product between the shared polynomial (a) and the private key polynomial (skI) modulo the first modulus (q) and scaling the coefficients of the polynomial product down to a second modulus (p).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.