Convergence of Blockchain and IoT for Secure Transportation Systems in Smart Cities

Algorithm 1

Pseudocode for IoT device state transaction.

	Ensure: Initialize var deviceRegistry
	Ensure: Initialize var deviceID
	Ensure: Initialize var t-list
	Ensure: Initialize var station = getstation ()
	if tx.newstate = True then
	deviceID.state = tx.newstate
	if tx.enables ! = null then
	deviceID.enabled = tx.enabled }\newline
	dev-station = station }\newline
	t-list = deviceID }\newline
	elseif tx.newstate = False
	event.msg (“State of IoT dvice having ID “+ deviceID +” has not changed”)
	end if
	end if
	return asset.update (deviceID)
	return event.msg (“State of IoT dvice having ID “+ deviceID +” has been changed.”) = 0