Invoice access method and apparatus based on blockchain, and electronic device
US11126739B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2021 |
| Grant date | Sep 21, 2021 |
| Priority date | — |
| Expiry date | Jan 27, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/56
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
One or more implementations of the present specification provide an invoice access method and apparatus based on a blockchain, and an electronic device. The method includes: receiving an access request initiated by an access user for a target invoice by using a client, the target invoice being encrypted and stored in the blockchain; determining, in response to the access request, whether the access user has an authority to access the target invoice; and in response to that the access user has the authority to access the target invoice, invoking decryption logic provided in a predetermined smart contract to decrypt ciphertext data of the target invoice stored in the blockchain, and returning decrypted plaintext data of the target invoice to the client.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.