Patent ID: 11924185
Assignee: MASTERCARD INTERNATIONAL INCORPORATED
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A method for privacy control in release of protected information, comprising:
storing, in a memory of a first computing system, a plurality of data pairs, each of the plurality of data pairs including at least a decryption key and a registration identifier;
receiving, by a receiver of the first computing system, a third-party data request for a user's data stored on a blockchain, the data request including at least a user identifier of a user associated with the data being requested in the data request;
receiving, by the receiver of the first computing system, a registration identifier of the data being requested in the data request, the registration identifier identifying a specific blockchain data value on the blockchain, the specific blockchain data value corresponding to a set of data associated with the user;
identifying, by a processor of the first computing system, a data pair based on the registration identifier, the data pair including the registration identifier and a decryption key; and
transmitting, by a transmitter of the first computing device, a decryption key of the identified data pair to a second computing system associated with the blockchain.