Atomic cross-chain swaps using equivalent secret values
US11310060B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2019 |
| Grant date | Apr 19, 2022 |
| Priority date | — |
| Expiry date | Jun 26, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/56
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Systems and methods are described for using equivalent secret values across different elliptic curves. For example, a transferring party may wish to exchange a first asset on a first blockchain with a recipient for a second asset on a second blockchain. After exchanging sets of public keys with a recipient, a transferring party may generate a zero-knowledge proof and public keys associated with a selected bitstring. The recipient may then verify the proof, which shows that private keys associated with the public keys associated with the bitstring are both derived from the bitstring without revealing the bitstring itself. Once validity of the private keys has been established, the transferring party may publish a second signature to claim the second asset. The published second signature may then be used to publish a first signature (generated using the selected bitstring) on the first blockchain to claim the first asset.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.