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

Claim 17:
18. A computer program product for controlling access to data being broadcast over a telecommunication medium, the computer program product comprising a computer readable storage medium having program instructions embodied therewith, the program instructions executable by a computing structure to cause the computing structure to perform a method comprising:
transmitting, by the provider system, 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,
encrypting, by the provider system, 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, and
broadcasting, by the provider system, the encrypted data.