Traceable and Authenticated Key Negotiations via Blockchain for Vehicular Communications

Algorithm 1

System parameters are generated and uploaded into blockchain (type-I).

	Data: Null
(1)	while (time() − starttime) > T do
(2)	⟵ random();
(3)	while (!IsPrime()) do
(4)	⟵ random();
(5)	end
(6)	⟵ random()%;
(7)	Transaction ⟵ code(, );
(8)	starttime ⟵ time();
(9)	end