Blockchain system for confidential and anonymous smart contracts
US11257077B2 · kind B2 · utility
1Cited by
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17Claims
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Key dates
| Filing date | Nov 30, 2018 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | Jul 24, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/56
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Blockchain-based, smart contract platforms have great promise to remove trust and add transparency to distributed applications. However, this benefit often comes at the cost of greatly reduced privacy. Techniques for implementing a privacy-preserving smart contract is described. The system can keep accounts private while not losing functionality and with only a limited performance overhead. This is achieved by building a confidential and anonymous token on top of a cryptocurrency. Multiple complex applications can also be built using the smart contract system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.