Access to data broadcast in encrypted form based on blockchain
US11153070B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2018 |
| Grant date | Oct 19, 2021 |
| Priority date | — |
| Expiry date | Mar 7, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/60
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A solution is proposed for controlling access to data that are broadcast over a telecommunication medium. A corresponding method comprises validating by a plurality of validator devices an access request that is submitted by an access device for accessing the data. The validator devices update a blockchain by adding a new block comprising an indication of the access request in response to a positive result of its validation. A provider system transmits cryptographic information for decrypting the data to the access device in response to the new block. A corresponding method for broadcasting data by a provider system and a corresponding method for accessing broadcast data by an access device are proposed. Corresponding computer programs and computer program products for performing the methods are also proposed. Moreover, corresponding structure, provider system and access device are proposed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.