Managing a smart contract on a blockchain
US10839107B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2020 |
| Grant date | Nov 17, 2020 |
| Priority date | — |
| Expiry date | Jan 30, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F21/602
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer-implemented method includes: in response to a first client device invoking a transaction with respect to a target smart contract, obtaining, by a blockchain node device in a blockchain, encrypted contract codes of the target smart contract; transmitting the encrypted contract codes of the target smart contract to a trusted execution environment; in response to determining that the target smart contract is not a managed smart contract, extracting a decryption key stored in the trusted execution environment, in which the decryption key corresponds to the encrypted contract codes of the target smart contract; decrypting the encrypted contract codes of the target smart contract; executing the decrypted contract codes of the target smart contract in the trusted execution environment; encrypting the execution result; and transmitting the encrypted execution result to the distributed ledgers of the blockchain for storage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.