Efficient threshold distributed elliptic curve key generation and signature method and system
US10630477B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2019 |
| Grant date | Apr 21, 2020 |
| Priority date | — |
| Expiry date | Jul 26, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3252
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Threshold distributed elliptic curve key generation and signature system and method are disclosed where nodes can generate their own key pairs without the participation of a trust center, each node can process its own key pair according to a secret sharing protocol, complete conversion of the (n, n) threshold to the (t, n) threshold, after determining t signature node, generates a (t, t) threshold private key according to a threshold logic, complete mapping of ptki to ptki′, and according to a signature logic, use ptki′ to complete the communication and calculation in the signature protocol, store the relevant calculation results, and complete an overall signature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.