Abstract: A method for privacy control in release of protected information includes: 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 data request, 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; identifying, by a processor of the first computing system, a data pair based on the registration identifier; and transmitting, by a transmitter of the first computing device, a decryption key of the identified data pair to a second computing system.

Abstract: A method for privacy control in release of protected information includes: 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 data request, 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; identifying, by a processor of the first computing system, a data pair based on the registration identifier; and transmitting, by a transmitter of the first computing device, a decryption key of the identified data pair to a second computing system.

Abstract: A method for privacy control in release of protected information includes: receiving, from a first system, a decryption key, request identifier, and a payload identifier by a second system; storing, in the second system, a blockchain comprised of blockchain data values, each blockchain data value including a registration identifier and encrypted data set; identifying, by the second system, a specific blockchain data value where the registration identifier matches the payload identifier; decrypting, by the second system, the encrypted data set in the specific blockchain data value using the decryption key; and transmitting, by the second system, the decrypted data set to a third system using the request identifier.

Abstract: A method for privacy control in release of protected information includes: receiving, from a first system, a decryption key, request identifier, and a payload identifier by a second system; storing, in the second system, a blockchain comprised of blockchain data values, each blockchain data value including a registration identifier and encrypted data set; identifying, by the second system, a specific blockchain data value where the registration identifier matches the payload identifier; decrypting, by the second system, the encrypted data set in the specific blockchain data value using the decryption key; and transmitting, by the second system, the decrypted data set to a third system using the request identifier.