Patent ID: 11968291
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H | IPC H

Claim 19:
20. A structure for controlling access to data being broadcast over a telecommunication medium, the structure comprising a provider system, a plurality of access devices, and a plurality of validator devices, wherein:
the provider system has a circuitry for transmitting cryptographic information in response to a blockchain being updated by a plurality of validator devices, the blockchain comprising a sequence of blocks linked to each other according to corresponding hashes, by adding a new one of the blocks comprising an indication of the first access request in response to a first consensus of at least some of the validator devices to a positive result of said validating the first access request,
the provider system has a circuitry for encrypting the data into encrypted data according to the cryptographic information, wherein the encrypted data can be decrypted by a first access device using the cryptographic information and a local key from a drive of the first access device,
the provider system has a circuitry for broadcasting the encrypted data.