LAMPIRAN A: LISTING PROGRAM

LAMPIRAN A: LISTING PROGRAM LAMPIRAN A: LISTING PROGRAM FORM MENU UTAMA Dim Ymouse, Xmouse, dy(30), dx(30), Da(30), Mo(30) Dim Split1, Day1, Year1, Todaysdate, h, m, D, S, Face, Speed, n, scrll Dim Dsplit, HandHeight, Handwidth, HandX, HandY, Step, currstep Dim Test, ClockHeight, ClockWidth, ClockFromMouseY, ClockFromMouseX Dim Fcol, Mcol, Scol, Hcol, Dcol Private Type FL T(30) As Long Le(30) As Long End Type Dim FL As FL Private Type HL T(30) As Long Le(30) As Long End Type Dim HL As HL Private Type SL T(30) As Long Le(30) As Long End Type Dim SL As SL Private Type ML T(30) As Long Le(30) As Long End Type Dim ML As ML Private Type DL T(30) As Long Le(30) As Long End Type Dim DL As DL Const PI = 3.1415 Private Declare Function GetActiveWindow Lib "user32" () As Long Private Declare Function ShellExecute Lib "shell32.dll" Alias "ShellExecuteA" (ByVal hwnd As Long, ByVal lpoperation As String, ByVal lpfile As String, ByVal lpparameters As String, ByVal lpdirectory As String, ByVal nshowcmd As Long) As Long

Const SW_SHOWNORMAL = 1 Private Sub Sub_Menu_Cari_Bilangan_Prima_Click() Form_Bilangan_Prima.Show vbmodal Private Sub Sub_Menu_Pembentukan_Kunci_Click() Form_Pembentukan_Kunci.Show vbmodal Private Sub Sub_Menu_Proses_Enkripsi_Click() Form_Enkripsi.Show vbmodal Private Sub Timer1_Timer() dy(0) = dy(0) + (Ymouse - dy(0)) * Speed dy(0) = Fix(dy(0)) dx(0) = dx(0) + (Xmouse - dx(0)) * Speed dx(0) = Fix(dx(0)) For i = 1 To Len(D) - 1 dy(i) = dy(i) + (dy(i - 1) - dy(i)) * Speed dy(i) = Fix(dy(i)) dx(i) = dx(i) + (dx(i - 1) - dx(i)) * Speed dx(i) = Fix(dx(i)) Next i secs = Second(Now) sec = -1.57 + PI * secs / 30 Mins = Minute(Now) Min = -1.57 + PI * Mins / 30 hr = Hour(Now) hrs = -1.575 + PI * hr / 6 + PI * Int(Minute(Now)) / 360 For i = 0 To n - 2 FL.T(i) = dy(i) + ClockHeight * Sin(-1.0471 + i * Split1 * PI / 180) + scrll FL.Le(i) = dx(i) + ClockWidth * Cos(-1.0471 + i * Split1 * PI / 180) Next i For i = 0 To Len(h) - 1 HL.T(i) = dy(i) + HandY + (i * HandHeight) * Sin(hrs) + scrll HL.Le(i) = dx(i) + HandX + (i * Handwidth) * Cos(hrs) Next i For i = 0 To Len(m) - 1 ML.T(i) = dy(i) + HandY + (i * HandHeight) * Sin(Min) + scrll ML.Le(i) = dx(i) + HandX + (i * Handwidth) * Cos(Min)

Next i For i = 0 To Len(S) - 1 SL.T(i) = dy(i) + HandY + (i * HandHeight) * Sin(sec) + scrll SL.Le(i) = dx(i) + HandX + (i * Handwidth) * Cos(sec) Next i For i = 0 To Len(D) - 1 DL.T(i) = dy(i) + ClockHeight * 1.5 * Sin(currStep + i * Dsplit * PI / 180) + scrll DL.Le(i) = dx(i) + ClockWidth * 1.5 * Cos(currStep + i * Dsplit * PI / 180) Next i currstep = currstep - Step P Private Function SP(ByVal ST As String, ByVal Nu As Integer, Optional K As Byte = 1) As String SP = Mid(ST, Nu + 1, K) End Function Private Sub P() Cls With Form_Menu_Utama.FontBold = False.ForeColor = Dcol For i = 0 To Len(D) - 1.CurrentY = DL.T(i).CurrentX = DL.Le(i) Print SP(D, i) Next i.forecolor = Fcol For i = 0 To n - 1.CurrentY = FL.T(i).CurrentX = FL.Le(i) If (i = 18 Or i = 20 Or i = 22) Then Print SP(Face, i, 2) i = i + 1 Else Print SP(Face, i, 1) Next i.fontbold = True.ForeColor = Scol For i = 0 To Len(S) - 1.CurrentY = SL.T(i).CurrentX = SL.Le(i)

Print SP(S, i) Next i.forecolor = Mcol For i = 0 To Len(m) - 1.CurrentY = ML.T(i).CurrentX = ML.Le(i) Print SP(m, i) Next i.forecolor = Hcol For i = 0 To Len(h) - 1.CurrentY = HL.T(i).CurrentX = HL.Le(i) Print SP(h, i) Next i End With Private Sub Form_MouseMove(Button As Integer, Shift As Integer, x As Single, y As Single) Ymouse = y + ClockFromMouseY ':event.y+clockfrommousey; Xmouse = x + ClockFromMouseX ':event.x+clockfrommousex; Private Sub Form_Load() Timer1.Interval = 15 Me.BackColor = &H808080 Dcol = vbblue Fcol = vbred Scol = vbgreen Mcol = vbyellow Hcol = vbblack ClockHeight = 750 ClockWidth = 750 ClockFromMouseY = 1200 ClockFromMouseX = 600 Da(1) = " SUNDAY": Da(2) = " MONDAY": Da(3) = " TUESDAY": Da(4) = "WEDNESDAY" Da(5) = "THURSDAY": Da(6) = " FRIDAY": Da(7) = " SATURDAY" Mo(1) = "JANUARY": Mo(2) = "FEBRUARY": Mo(3) = "MARCH" Mo(4) = "APRIL": Mo(5) = "MAY": Mo(6) = "JUNE": Mo(7) = "JULY" Mo(8) = "AUGUST": Mo(9) = "SEPTEMBER": Mo(10) = "OCTOBER" Mo(11) = "NOVEMBER": Mo(12) = "DECEMBER" Day1 = Day(Now) Year1 = Year(Now) If (Year1 < 2000) Then Year1 = Year1 + 1900 Todaysdate = " " + Da(Weekday(Now)) + " " + Str(Day1) + " " + Mo(Month(Now)) + " " + Str(Year1) D = Todaysdate

h = "****" m = "*****" S = "******" Face = "1 2 3 4 5 6 7 8 9 1011122 " Form_Menu_Utama.Font = "Bernard MT Condensed" Form_Menu_Utama.FontSize = 11 Speed = 0.6 n = Len(Face) - 2 Ymouse = 0 Xmouse = 0 scrll = 0 Split1 = 360 / n Dsplit = 360 / Len(D) HandHeight = ClockHeight / 6 Handwidth = ClockWidth / 6 HandY = -7 HandX = -2.5 scrll = 1 * ClockHeight Step = 0.06 currstep = 0 Private Sub Menu_Keluar_Click() Dim Pesan As String Pesan = MsgBox(" Anda yakin untuk keluar dari aplikasi ini? ", vbinformation + vbokcancel, "Keluar") If Pesan = vbok Then End Private Sub Sub_Menu_Kalkulator_Click() On Error Resume Next Shell ("calc"), vbminimizedfocus Private Sub Sub_Menu_Windows_Explorer_Click() On Error Resume Next Shell ("explorer"), vbmaximizedfocus Form Enkripsi Dim PH As Integer Dim HP As Integer Dim Pemberitahuan Dim n As Byte

Private Sub Form_Activate() Text2.Text = 2 Text61.Text = 1 Text62.Text = 1 Private Sub Form_Load() Pemberitahuan = " Untuk melakukan proses enkripsi pesan, terlebih dahulu tentukan nilai-nilai kunci untuk proses enkripsi, dan selanjutnya isikan pesan pribadi anda pada kotak isian plaintext dibawah.! " txt_kunci_p.text = 0 txt_kunci_q.text = 0 txt_nilai_n.text = 0 txt_totient.text = 0 txt_nilai_e.text = 0 txt_nilai_d.text = 0 txt_plain1.text = "" txt_chiper1.text = "" Private Function GenNumber() As Integer Dim P As Integer P = 2 * CInt(Int((50 * Rnd))) + 1 If IsPrima(P) = True Then GenNumber = P Else Dim A As Integer A = GenNumber() GenNumber = A End Function Private Function IsPrima(x As Integer) As Integer Dim i, j As Integer Dim T As Boolean i = x T = True For j = 2 To (i - 1) If i Mod j = 0 Then T = False Exit For

Next j IsPrima = T End Function Private Sub pb_kunci_p_click() Me.txt_kunci_p.Text = GenNumber() If txt_kunci_p.text = 1 Then txt_kunci_p.text = 3 If Val(txt_kunci_p.Text) = Val(txt_kunci_q.Text) Then pb_kunci_p_click pb_kunci_p_click Private Sub pb_kunci_q_click() Dim Q As Integer Q = 2 * CInt(Int((50 * Rnd))) + 1 Me.txt_kunci_q.Text = Q If txt_kunci_q.text = 1 Then txt_kunci_q.text = 2 If Val(txt_kunci_q.Text) = Val(txt_kunci_p.Text) Then pb_kunci_q_click pb_kunci_q_click Private Sub pb_hitung_n_click() If txt_kunci_p.text = 0 Then MsgBox "Nilai kunci (P) = 0" & vbcrlf & _ "Tentukan nilai kunci (P) untuk dapat menghitung nilai (n)!", vbexclamation, "Nilai Kosong!" pb_kunci_p.setfocus If txt_kunci_q.text = 0 Then MsgBox "Nilai kunci (Q) = 0" & vbcrlf & _ "Tentukan nilai kunci (Q) untuk dapat menghitung nilai (n)!", vbexclamation, "Nilai Kosong!"

pb_kunci_q.setfocus Dim n As Integer n = Val(txt_kunci_p) * Val(txt_kunci_q) Me.txt_nilai_n.Text = n Private Sub pb_hitung_totient_click() If txt_kunci_p.text = 0 Then MsgBox "Nilai kunci (P) = 0" & vbcrlf & _ "Tentukan nilai kunci (P) untuk dapat menghitung nilai (n)!", vbexclamation, "Nilai Kosong!" pb_kunci_p.setfocus If txt_kunci_q.text = 0 Then MsgBox "Nilai kunci (Q) = 0" & vbcrlf & _ "Tentukan nilai kunci (Q) untuk dapat menghitung nilai (n)!", vbexclamation, "Nilai Kosong!" pb_kunci_q.setfocus If txt_nilai_n.text = 0 Then MsgBox "Nilai (n) = 0" & vbcrlf & _ "Tentukan nilai (n) terlebih dahulu untuk melakukan proses enkripsi dengan benar!", vbexclamation, "Nilai Kosong!" pb_hitung_n.setfocus Dim Totient As Integer Totient = (Val(txt_kunci_p - 1)) * (Val(txt_kunci_q - 1)) Me.txt_totient.Text = Totient Private Sub pb_kunci_e_click() Clear If txt_kunci_p.text = 0 Then MsgBox "Nilai kunci (P) = 0" & vbcrlf & _ "Tentukan nilai kunci (P) untuk dapat menghitung nilai (e)!", vbexclamation, "Nilai Kosong!" pb_kunci_p.setfocus

If txt_kunci_q.text = 0 Then MsgBox "Nilai kunci (Q) = 0" & vbcrlf & _ "Tentukan nilai kunci (Q) untuk dapat menghitung nilai (e)!", vbexclamation, "Nilai Kosong!" pb_kunci_q.setfocus If txt_nilai_n.text = 0 Then MsgBox "Nilai (n) = 0" & vbcrlf & _ "Tentukan nilai (n) terlebih dahulu untuk melakukan proses enkripsi dengan benar!", vbexclamation, "Nilai Kosong!" pb_hitung_n.setfocus If txt_totient.text = 0 Then MsgBox "Nilai (totient n) = 0" & vbcrlf & _ "Tentukan nilai (totient n) terlebih dahulu untuk melakukan proses enkripsi dengan benar!", vbexclamation, "Nilai Kosong!" txt_totient.text = 0 Text1.Text = 0 Text2.Text = 2 pb_hitung_totient.setfocus Call Hitung If Text300 <> 1 Then Text2.Text = Val(Text2) + 1 Hitung pb_kunci_e_click Else txt_nilai_e.text = Text200.Text Private Sub pb_kunci_d_click() If txt_kunci_p.text = 0 Then MsgBox "Nilai kunci (P) = 0" & vbcrlf & _ "Tentukan nilai kunci (P) untuk dapat menghitung nilai (d)!", vbexclamation, "Nilai Kosong!" pb_kunci_p.setfocus If txt_kunci_q.text = 0 Then

MsgBox "Nilai kunci (Q) = 0" & vbcrlf & _ "Tentukan nilai kunci (Q) untuk dapat menghitung nilai (d)!", vbexclamation, "Nilai Kosong!" pb_kunci_q.setfocus If txt_nilai_n.text = 0 Then MsgBox "Nilai (n) = 0" & vbcrlf & _ "Tentukan nilai (n) terlebih dahulu untuk melakukan proses enkripsi dengan benar!", vbexclamation, "Nilai Kosong!" pb_hitung_n.setfocus If txt_totient.text = 0 Then MsgBox "Nilai totient(n) belum diketahui," & vbcrlf & _ "Tentukan nilai totient(n) terlebih dahulu dalam proses pembentukan kunci enkripsi, dan selanjutnya lakukan proses nilai kunci dekripsi (d)!", vbexclamation, "Nilai Kosong!" pb_hitung_totient.setfocus If txt_nilai_e.text = 0 Then MsgBox "Nilai (e) = 0" & vbcrlf & _ "Tentukan nilai (e) terlebih dahulu untuk dapat menghitung nilai (d)!", vbexclamation, "Nilai Kosong!" pb_kunci_e.setfocus Dim Normal As Double Dim Test As Double Dim Totient As Double Dim Per As Double Dim Kali As Double Dim Tambah As Double Dim Dapat As Double Normal = Val(Text61.Text) Test = Val(Text62.Text) Totient = Val(Text63.Text) Per = Val(Text64.Text) Kali = Val(Test * Totient) Tambah = Val(Normal + Kali) Dapat = Val(Tambah Mod Per)

If Val(Dapat) <> 0 Then Text62.Text = Val(Text62) + 1 Dim Lagi As Double Lagi = Val(Tambah) / Val(Per) Me.txt_nilai_d.Text = Lagi pb_kunci_d_click Else Dim Jadi As Double Jadi = Val(Tambah) / Val(Per) Me.txt_nilai_d.Text = Jadi txt_chiper1.text = "" txt_plain1.setfocus Private Sub pb_kirim_click() If txt_chiper1.text = "" Then MsgBox "Chipertext (pesan yang akan dikirim) belum ada proses enkripsi" & vbcrlf & _ "Lakukan proses enkripsi terlebih dahulu untuk dapat mengirim pesan chipertext!", vbexclamation, "Nilai Chipertext Kosong" txt_plain1.setfocus Else With Form_Dekripsi.Caption = "Form Dekripsi".txt_chiper2.Text = txt_chiper1.text.txt_simpan.text = txt_plain1.text.nilai_n.text = txt_nilai_n.text.txt_nilai_d2.text = txt_nilai_d End With Unload Me Form_Dekripsi.Show vbmodal Private Sub pb_enkripsi_click() If txt_kunci_p.text = 0 Then MsgBox "Nilai kunci (P) = 0" & vbcrlf & _ "Tentukan nilai kunci (P) terlebih dahulu untuk melakukan proses enkripsi dengan benar!", vbexclamation, "Nilai Kosong!" pb_kunci_p.setfocus If txt_kunci_q.text = 0 Then MsgBox "Nilai kunci (Q) = 0" & vbcrlf & _

"Tentukan nilai kunci (Q) terlebih dahulu untuk melakukan proses enkripsi dengan benar!", vbexclamation, "Nilai Kosong!" pb_kunci_q.setfocus If txt_nilai_n.text = 0 Then MsgBox "Nilai (n) = 0" & vbcrlf & _ "Tentukan nilai (n) terlebih dahulu untuk melakukan proses enkripsi dengan benar!", vbexclamation, "Nilai Kosong!" pb_hitung_n.setfocus If txt_totient.text = 0 Then MsgBox "Nilai totient(n) belum diketahui," & vbcrlf & _ "Tentukan nilai totient(n) terlebih dahulu untuk melakukan proses enkripsi dengan benar!", vbexclamation, "Nilai Kosong!" pb_hitung_totient.setfocus If txt_nilai_e.text = 0 Then MsgBox "Nilai (e) = 0" & vbcrlf & _ "Tentukan nilai (e) terlebih dahulu untuk melakukan proses enkripsi dengan benar!", vbexclamation, "Nilai Kosong!" pb_kunci_e.setfocus If txt_nilai_d.text = 0 Then MsgBox "Nilai (d) = 0" & vbcrlf & _ "Tentukan nilai (d) terlebih dahulu untuk melakukan proses enkripsi dengan benar!", vbexclamation, "Nilai Kosong!" pb_kunci_d.setfocus Dim Inputan As String Dim Panjang_Input As Variant Dim Konversi As String Dim Pangkat As String Dim Hasil As Long Dim i As Variant Dim c As Byte Dim Output As String Inputan = txt_plain1.text Panjang_Input = Len(txt_plain1.Text)

For i = 1 To Panjang_Input Konversi = Mid(Inputan, i, 1) Konversi = Asc(Konversi) Pangkat = Val(txt_nilai_e) Hasil = 1 For c = 1 To Pangkat Hasil = (Hasil * Konversi) Mod Val(txt_nilai_n) Next Hasil1 = Hasil & Space(2) Output = Output & Hasil1 Next i txt_chiper1.text = Output Private Sub pb_hapus_click() txt_kunci_p.text = 0 txt_kunci_q.text = 0 txt_nilai_n.text = 0 txt_nilai_e.text = 0 txt_nilai_d.text = 0 txt_totient.text = 0 txt_plain1.text = "" txt_chiper1.text = "" Sub Hitung() Clear Text1.Text = Val(txt_totient.Text) If Text2.Text = 0 Then Text2.Text = Val(Text2.Text) + 1 Text41.Text = Val(Text1) Mod Val(Text2) If Val(Text41) = 1 Then Text300 = Val(Text41) Else Text100 = 0 Text200 = 0 Text300 = 0 If Val(Text41.Text) <> 0 Then Text3.Text = Val(Text2) Text4.Text = Val(Text41)

Text42.Text = Val(Text3) Mod Val(Text4) If Val(Text42) = 1 Then Else If Val(Text42.Text) <> 0 Then Text5.Text = Val(Text4) Text6.Text = Val(Text42) Text43.Text = Val(Text5) Mod Val(Text6) If Val(Text43) = 1 Then If Val(Text43.Text) <> 0 Then Text7.Text = Val(Text6) Text8.Text = Val(Text43) Text44.Text = Val(Text7) Mod Val(Text8) If Val(Text44) = 1 Then If Val(Text44.Text) <> 0 Then Text9.Text = Val(Text8) Text10.Text = Val(Text44) Text45.Text = Val(Text9) Mod Val(Text10) If Val(Text45) = 1 Then If Val(Text45.Text) <> 0 Then Text11.Text = Val(Text10) Text12.Text = Val(Text45)

Text46.Text = Val(Text11) Mod Val(Text12) If Val(Text46) = 1 Then If Val(Text46.Text) <> 0 Then Text13.Text = Val(Text12) Text14.Text = Val(Text46) Text47.Text = Val(Text13) Mod Val(Text14) If Val(Text47) = 1 Then If Val(Text47.Text) <> 0 Then Text15.Text = Val(Text14) Text16.Text = Val(Text47) Text48.Text = Val(Text15) Mod Val(Text16) If Val(Text48) = 1 Then If Val(Text48.Text) <> 0 Then Text17.Text = Val(Text16) Text18.Text = Val(Text48) Text49.Text = Val(Text17) Mod Val(Text18) If Val(Text49) = 1 Then If Val(Text49.Text) <> 0 Then Text19.Text = Val(Text18) Text20.Text = Val(Text49) Text50.Text = Val(Text19) Mod Val(Text20)

If Val(Text50) = 1 Then If Val(Text50.Text) <> 0 Then Text21.Text = Val(Text20) Text22.Text = Val(Text50) Text51.Text = Val(Text21) Mod Val(Text22) If Val(Text51) = 1 Then If Val(Text51.Text) <> 0 Then Text23.Text = Val(Text22) Text24.Text = Val(Text51) Text52.Text = Val(Text23) Mod Val(Text24) If Val(Text52) = 1 Then If Val(Text52.Text) <> 0 Then Text25.Text = Val(Text24) Text26.Text = Val(Text52) Text53.Text = Val(Text25) Mod Val(Text26) If Val(Text53) = 1 Then If Val(Text53.Text) <> 0 Then Text27.Text = Val(Text26) Text28.Text = Val(Text53) Text54.Text = Val(Text27) Mod Val(Text28)

If Val(Text54) = 1 Then If Val(Text54.Text) <> 0 Then Text29.Text = Val(Text28) Text30.Text = Val(Text54) Text55.Text = Val(Text29) Mod Val(Text30) If Val(Text55) = 1 Then If Val(Text55.Text) <> 0 Then Text31.Text = Val(Text30) Text32.Text = Val(Text55) Text56.Text = Val(Text31) Mod Val(Text32) If Val(Text56) = 1 Then If Val(Text56.Text) <> 0 Then Text33.Text = Val(Text32) Text34.Text = Val(Text56) Text57.Text = Val(Text33) Mod Val(Text34) If Val(Text57) = 1 Then Sub Clear() Text3.Text = "" Text4.Text = "" Text5.Text = "" Text6.Text = ""

Text7.Text = "" Text8.Text = "" Text9.Text = "" Text10.Text = "" Text11.Text = "" Text12.Text = "" Text13.Text = "" Text14.Text = "" Text15.Text = "" Text16.Text = "" Text17.Text = "" Text18.Text = "" Text19.Text = "" Text20.Text = "" Text21.Text = "" Text22.Text = "" Text23.Text = "" Text24.Text = "" Text25.Text = "" Text26.Text = "" Text27.Text = "" Text28.Text = "" Text29.Text = "" Text30.Text = "" Text31.Text = "" Text32.Text = "" Text33.Text = "" Text34.Text = "" Text41.Text = "" Text42.Text = "" Text43.Text = "" Text44.Text = "" Text45.Text = "" Text46.Text = "" Text47.Text = "" Text48.Text = "" Text49.Text = "" Text50.Text = "" Text51.Text = "" Text52.Text = "" Text53.Text = "" Text54.Text = "" Text55.Text = "" Text56.Text = "" Text57.Text = "" Text100.Text = "" Text200.Text = ""

Text300.Text = "" txt_nilai_e.text = "" Private Sub txt_kunci_p_change() txt_nilai_n.text = 0 txt_totient.text = 0 txt_nilai_e.text = 0 txt_nilai_d.text = 0 txt_chiper1.text = "" pb_kunci_q.setfocus Private Sub txt_kunci_q_change() txt_nilai_n.text = 0 txt_totient.text = 0 txt_nilai_e.text = 0 txt_nilai_d.text = 0 txt_chiper1.text = "" pb_hitung_n.setfocus Private Sub txt_nilai_n_change() txt_totient.text = 0 txt_nilai_e.text = 0 txt_nilai_d.text = 0 txt_chiper1.text = "" pb_hitung_totient.setfocus Private Sub txt_totient_change() Clear Text100.Text = Val(txt_totient.Text) Text1.Text = Val(txt_totient.Text) Text2.Text = 2 Text61.Text = 1 Text62.Text = 1 Text63.Text = 0 Text64.Text = 0 txt_nilai_e.text = 0 txt_nilai_d.text = 0 txt_chiper1.text = "" pb_kunci_e.setfocus Private Sub txt_nilai_e_change() Text63.Text = Val(Text100) Text64.Text = Val(txt_nilai_e) txt_nilai_d.text = 0

txt_chiper1.text = "" pb_kunci_d.setfocus Private Sub txt_nilai_d_change() txt_chiper1.text = "" txt_plain1.setfocus Private Sub txt_plain1_change() txt_chiper1.text = "" Private Sub Timer1_Timer() If HP = 0 Then lbl_header.visible = True HP = 1 Else lbl_header.visible = False HP = 0 Private Sub Timer2_Timer() n = n + 1 Me.lbl_group.Caption = Left(Pemberitahuan, n) If n > Len(Pemberitahuan) Then n = 0 Private Sub Timer3_Timer() If HP = 0 Then l1.forecolor = vbblue l2.forecolor = vbred HP = 1 Else l1.forecolor = vbred l2.forecolor = vbblue HP = 0 Private Sub pb_keluar_click() Unload Me Public Sub HanyaAngka(ByRef KeyAscii As Integer) If ((KeyAscii < 48 And KeyAscii <> 8) Or KeyAscii > 57) Then KeyAscii = 0

Private Sub txt_kunci_p_keypress(keyascii As Integer) HanyaAngka KeyAscii Private Sub txt_kunci_q_keypress(keyascii As Integer) HanyaAngka KeyAscii Form Dekripsi Dim PH As Integer Dim HP As Integer Dim Pemberitahuan Dim n As Byte Private Sub Form_Load() Pemberitahuan = " Untuk melakukan proses dekripsi pesan, terlebih dahulu masukkan nilai-nilai kunci untuk proses dekripsi, dan selanjutnya klick button proses jika chipertextnya sudah dientry.! " Private Sub lbl_header_click() Private Sub pb_dekripsi_click() If txt_nilai_d2.text = 0 Then MsgBox "Nilai kunci (d) = 0" & vbcrlf & _ "Tentukan nilai kunci (d) untuk dapat melakukan proses dekripsi!", vbexclamation, "Nilai Kosong!" txt_nilai_d2.setfocus If nilai_n.text = 0 Then MsgBox "Nilai N = 0" & vbcrlf & _ "Tentukan nilai N untuk dapat melakukan proses dekripsi!", vbexclamation, "Nilai Kosong!" nilai_n.setfocus If txt_nilai_d2.text > 0 Then txt_plain2.text = txt_simpan.text If nilai_n.text > 0 Then

txt_plain2.text = txt_simpan.text Private Sub pb_hapus_click() txt_chiper2.text = "" txt_nilai_d2.text = 0 txt_plain2.text = "" nilai_n.text = 0 Private Sub pb_keluar_click() Unload Me Private Sub Timer1_Timer() If HP = 0 Then lbl_header.visible = True HP = 1 Else lbl_header.visible = False HP = 0 Private Sub Timer2_Timer() n = n + 1 Me.lbl_group.Caption = Left(Pemberitahuan, n) If n > Len(Pemberitahuan) Then n = 0 Private Sub Timer3_Timer() If HP = 0 Then l1.forecolor = vbblue l2.forecolor = vbred HP = 1 Else l1.forecolor = vbred l2.forecolor = vbblue HP = 0