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

Claim 16:
17. The method of claim 1, the method further comprises:
receiving a first access request for accessing the data from a second access device,
validating the first access request according to corresponding entitlements to access the data being granted by a provider system to a plurality of access devices,
updating a 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 consensus at least partial of a plurality of validator devices comprising the first access device to a positive result of said validating the first access request,
submitting a second access request for accessing the data by the first access device to the validator devices,
receiving cryptographic information from the provider system in response to a further new one of the blocks comprising an indication of the second access request,
receiving the data encrypted according to the updated cryptographic information being broadcast by the provider system, and
decrypting the encrypted data into the data according to the updated cryptographic information.