private void sendRandomConfirmationPDU(final UnprovisionedMeshNode node) {
        final ProvisioningRandomConfirmationState provisioningRandomConfirmation = new ProvisioningRandomConfirmationState(node, this, mInternalTransportCallbacks, mStatusCallbacks);
        provisioningState = provisioningRandomConfirmation;
        provisioningRandomConfirmation.executeSend();
    }
Sends the provisioning confirmation

@param authentication authentication value input by the user this may be nullable depending on the OOB type selected by the user
mesh/src/main/java/no/nordicsemi/android/mesh/MeshProvisioningHandler.java