Patent ID: 11960613
Assignee: ZERYNTH S.P.A.
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 7:
8. The method according to claim 7, wherein a first transaction phase is performed comprising the following steps:
the hardware interface sends a command to initiate a blockchain transaction to the device with the primed secure element that does not contain a dongle blockchain address QB;
the hardware interface and the device cooperate in securely generating and exchanging a secret key K, said secret key K being generated from the private and public keys dD, QD, dH and QH of the device and hardware interface;
the device decrypts the command received using the secret key K and extracts the hardware interface Unique Identifier UIDH and a message, M, to be sent to the blockchain;
the device reads the Unique Identifier string UIDD from the secure element and generates from UIDD and UIDH the blockchain private key dB;
the device derives the dongle blockchain address QB from the blockchain private key dB and then the dongle blockchain address QB is stored into the secure element;
the device generates the blockchain transaction and sends it to the blockchain; and
the device deletes UIDH, dB, UIDD and QB.