Systems and methods for distributed digital rights management with decentralized key management
US11258601B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2019 |
| Grant date | Feb 22, 2022 |
| Priority date | — |
| Expiry date | May 1, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/50
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
One embodiment disclosed relates to a system for digital data distribution with decentralized key management. The system utilizes a data provider, a data demander, cloud storage, a blockchain, and a smart contract registered with the blockchain. The data provider encrypts the digital data using a session key and puts the encrypted digital data to the cloud storage, which returns a URL for the stored digital data. In addition, the session key is itself encrypted using the public key of the data demander. The access data at the smart contract is updated with the encrypted session key and the URL. The data demander uses its own private key to decrypt the session key and then uses the session key to decrypt the digital data. Other embodiments and features are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.