Algorithm 1. Registration Phase of FBAT

1: Draw a GUI in function 2: Initialize Ю 3:     Select triangle ← {L1} 4:     Pattern saved ← ϸ 5:     L1++ 6:  If 7:  Wrong selection ← {L1} 8:     Retry 9:     Return L1 10:  Else 11:     Select triangle ← {L2} 12:     Pattern saved ← ϸ 13:     L2++ 14:  Endif 15:     Wrong selection ← {L2} 16:      Retry 17:      Return {L2} 18:  Else 19:      Triangle selection ← {L3} 20:      Data saved ← ϸ 21:  Endif 22:      Wrong selection ← {L3} 23:      Retry 24:      Return {L3} 25:  Else 26:      Continue for confirmation 27:  Endif 28:      Repeat L1 to L3 29:       Confirm 30:  If 31:      Set password == confirm password 32:      Password set 33:       Password saved ← ∂ 34:  endif