Algorithm 1: Protocol-specific RA Scenario
1.	Input: rank attack building block, DIO control message
2.	Output: DIO message with the decreased rank
3.	Begin
4.	True: DIO with an illegitimately decreased rank
5.	If
6.	RPL_Conf_Min_HopRankInc = 0,
7.	RPL_Max_RankInc = 0,
8.	Infinite_Rank limited to 256, and
9.	Rpl_recalculate_ranks = null, then
10.	Child nodes select the parent,
11.	Attack instigated
12.	Else
13.	False: node = benign
14.	Until decreased rank attack is launched
15.	Network = attacked
16.	End