Patent ID: 11895247
Assignee: DENSO CORPORATION
Field: Digital communication (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 6:
7. A control unit for granting a right to a remote device that pertains to an equipment component, the control unit comprising:
a communication interface operable configured to communicate wirelessly with the remote device;
a memory configured to store one or more encryption keys pertaining to granting rights to other devices, and a ledger having a chain of nodes that begins with a root grant based on a root certificate;
a controller configured to establish a communication link with the remote device via the communication interface, wherein the controller configured to:
generate ledger information that includes one or more rights for the equipment component, and a layered package having a plurality of layers, wherein each layer is encrypted in accordance with one key of an asymmetric key pair, and
include the ledger information in the ledger as a new node, wherein the new node of the ledger is based at least in part on a hash of one or more prior nodes of the ledger, and wherein a node of the ledger subsequent to the new node is based at least in part on a hash that is based at least in part on the one or more rights for the equipment component; and

the controller configured to transmit the ledger to the remote device, wherein the ledger includes the ledger information including the one or more rights for the equipment component.