“…The group G 5 =<x: x 32 =1> of order 32 with only one generator, that is, x:= (27,24,28,21,3,11,5,25,17,9,23,26,8,12,18,20,7,30,22,14,19,29,15,6,1,10,4,2,32,31,13,16); acts naturally on the index set I Ωi of A 1 that is, 5×5 S-box from chaos-based search. This action can be defined as:…”