Hardened key derivation in multi-party computation
US12362918B2 · kind B2 · utility
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14Claims
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Key dates
| Filing date | Jul 14, 2023 |
| Grant date | Jul 15, 2025 |
| Priority date | — |
| Expiry date | Jul 14, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/3066
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods for hardened key derivation in multi-party computation. The method includes deriving child private key shares from parent private key shares using hardened multiparty computation while maintaining key refresh properties. The method includes selecting a random number generator G and a second random number generator G′. Child private key shares are derived by computing an offset using G′.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.