Patent ID: 11880486
Assignee: SONY GROUP CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. A device for authenticating an organisation requesting access to user data, comprising:
network interface circuitry configured to communicate over a network, and processing circuitry configured to:
receive, via the network interface circuitry, encrypted user data from an information processing apparatus, the encrypted user data being generated by encrypting the user data;
generate a unique identifier to be associated with the encrypted user data and a decryption key used for decrypting the encrypted user data;
provide the encrypted user data and the unique identifier to a publicly available database for storage immutably therein or thereon, the publicly available database being configured to store the unique identifier and a chain of access permissions recording granted permissions to access the user data in a form of one or more transactions from one previously granted organisation to another;
store the decryption key in association with the unique identifier;
receive, via the network interface circuitry, a request to access the user data from a requesting organisation;
in response to the request, determine whether the requesting organisation is an approved organisation, and determine whether the chain of access permissions stored in the publicly available database is validated; and
in a case that the requesting organisation is the approved organisation and the chain of access permissions stored in the publicly available database is validated:
transmit, via the network interface circuitry, the decryption key to the requesting organization; and
wherein the publicly available database is a block-chain.