Techniques for securing digital signatures using multi-party computation
US11689371B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2019 |
| Grant date | Jun 27, 2023 |
| Priority date | — |
| Expiry date | Mar 1, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/56
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques for securing digital signatures using multi-party computation. A method includes generating at least one first secret share by a first system, wherein at least one second secret share is generated by one of at least one second system; signing data based on the at least one first secret share when a signing policy is met, wherein the signing is part of an interactive signing process including running a multi-party computation protocol by the first system and the at least one second system, wherein the signed data corresponds to a public key generated based on the plurality of secret shares, wherein the signing policy requires a minimum number of secret shares, wherein shares of one system alone are not sufficient to meet the signing policy, wherein no portion of shares of one system are revealed to the other system during the interactive signing process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.