LISTING PROGRAM Kode Program Form Main (Menu Utama) :

  

LISTING PROGRAM

Kode Program Form Main (Menu Utama) : Private Sub lbAdd_Click()

  frmAdd.Show vbModeless, Me End Sub

  Private Sub lbExtract_Click()

  frmRead.Show vbModeless, Me End Sub

  Private Sub Label1_Click()

  frmMSEStego.Show End Sub

  Private Sub Label4_Click()

  End End Sub

  Kode Program Form Add (Insertion) :

  Option Explicit Dim vSteps Dim currentStep& Const MAX_STEPS = 3 Dim strImageFile$ Dim m_Millimeter& Dim WithEvents clsStega As ClsStegano Dim bolCover As Boolean Dim bolEmbed As Boolean Dim NewColor As Long

  Private Sub clsStega_SomeError (strDescription As String)

  MsgBox "Some error: " & strDescription End Sub

  Private Sub clsStega_StatusChanged (prcDone As Long, strStatus As

  String) frmLoad.ProgBar.Value = prcDone frmLoad.lbStatus = strStatus End Sub

  Private Sub cmdAddFile_Click()

  Dim thedata$, theKey$, sTitle$ Dim Itlvw As ListItem Dim lebar As Integer Dim Tinggi As Integer files.Filter = "Jenis Citra|*.bmp" files.FileName = "" files.ShowOpen bolEmbed = True thedata = files.FileName picEmbed.Picture = LoadPicture(thedata) lebar = picEmbed.ScaleWidth Tinggi = picEmbed.ScaleHeight Me.Caption = lebar & " " & Tinggi If lebar >= 32 And Tinggi >= 32 Then MsgBox "Citra embed terlalu besar" picEmbed.Picture = Nothing currentStep = currentStep - 1 cmdRemove.Enabled = True cmdRemove_Click Shape6.Visible = True cmdAddFile.Enabled = True Else lblNmFile1.Caption = files.FileTitle sTitle = VBA.Left$(files.FileTitle, Len(files.FileTitle) - 4) If thedata <> "" Then theKey = "f0" & lvwFilesAdded.ListItems.Count + 1 If clsStega.AddFile(thedata, sTitle, theKey) Then Set Itlvw = lvwFilesAdded.ListItems.Add(, theKey,

  VBA.Right$(thedata, 3)) Itlvw.SubItems(1) = sTitle Itlvw.SubItems(2) = FileLen(thedata) lbRema = "Sisa Byte: " & clsStega.BytesTotal - clsStega.BytesAdded cmdNext.Enabled = True cmdBack.Enabled = False cmdTarget.Enabled = False cmdAddFile.Enabled = False cmdRemove.Enabled = True Label5.Enabled = False End If End If End If End Sub

  Private Sub cmdBack_Click()

  cmdNext.Enabled = True cmdFinish.Enabled = False If currentStep >= 0 Then frStep(currentStep).Visible = False currentStep = currentStep - 1 lbStep = vSteps(currentStep) If currentStep < 0 Then currentStep = 0 frStep(currentStep).Visible = True If currentStep = 0 Then cmdBack.Enabled = False End If End Sub

  Private Sub cmdFinish_Click()

  Set clsStega = Nothing Unload Me End Sub

  Private Sub cmdNext_Click()

  Dim aa As Integer Dim bb As Integer cmdNext.Enabled = False cmdBack.Enabled = True currentStep = currentStep + 1 If currentStep >= MAX_STEPS Then cmdBack.Enabled = False cmdNext.Enabled = False cmdFinish.Enabled = True End If If currentStep = 1 Then cmdAddFile.Enabled = True Label5.Enabled = False cmdBack.Enabled = True Else cmdAddFile.Enabled = False End If If currentStep = 2 Then cmdBack.Enabled = False frmLoad.Show vbModeless, Me clsStega.EncodeIt files.FileName = "" files.Filter = "Simpan Stego Image|*.bmp" files.ShowSave If files.FileName <> "" Then lblNmFile2.Caption = files.FileTitle clsStega.OutputImageFile = files.FileName clsStega.Save2Image picStego.Picture = LoadPicture(files.FileName) SavePicture picStego.Image, files.FileName Else MsgBox "Batal simpan!" End If Unload frmLoad End If End Sub

  Private Sub cmdRemove_Click()

  Dim ItSel As ListItem Set ItSel = lvwFilesAdded.SelectedItem If Not ItSel Is Nothing Then clsStega.RemoveFile ItSel.Key lbRema = "Sisa Bytes: " & clsStega.BytesTotal - clsStega.BytesAdded lvwFilesAdded.ListItems.Remove ItSel.Index End If If lvwFilesAdded.ListItems.Count = 0 Then cmdNext.Enabled = False cmdAddFile.Enabled = True cmdRemove.Enabled = False End Sub

  Private Sub cmdTarget_Click()

  Dim ToW&, ToH&, InW&, InH&, mPad& Dim lebar As Integer Dim Tinggi As Integer mPad = 2 files.Filter = "Image File|*.bmp" files.ShowOpen bolCover = True strImageFile = files.FileName TheImage.Picture = LoadPicture(strImageFile) lebar = TheImage.Width Tinggi = TheImage.Height Me.Caption = lebar & " " & Tinggi If lebar <= 350 And Tinggi <= 250 Then lblNmFile.Caption = files.FileTitle If strImageFile <> "" And VBA.Right$(strImageFile, 4) = ".bmp" Then TheImage.Picture = LoadPicture(strImageFile) clsStega.ImageFile = strImageFile ToW = Me.ScaleWidth - mPad - mPad ToH = Me.ScaleHeight - mPad - mPad InW = TheImage.Picture.Width / m_Millimeter InH = TheImage.Picture.Height / m_Millimeter

  VS.Max = InH - HS.Top + mPad HS.Max = InW - VS.Left + mPad

  VS.LargeChange = ToH - HS.Height HS.LargeChange = ToW - VS.Width lbRema = "Sisa Bytes: " & clsStega.BytesTotal cmdNext.Enabled = True Label5.Enabled = TruE Else MsgBox "Error citra", vbCritical, "File rusak" End If Else MsgBox "Citra Cover terlalu besar" TheImage.Picture = Nothing TheImage.Cls End If End Sub

  Private Sub Form_Activate()

  cmdFinish.Enabled = True cmdAddFile.Enabled = False cmdRemove.Enabled = False Label5.Enabled = True End Sub

  Private Sub Form_Load()

  Set clsStega = New ClsStegano currentStep = 0 m_Millimeter = ScaleX(100, vbPixels, vbMillimeters) vSteps = Array("Langkah 1: Pilih Cover Image:", "Langkah 2: Pilih Embed Image:", "Langkah 3: Penyisipan Embed Image:", "Selesai") End Sub

  Private Sub Form_Unload(Cancel As Integer)

  Set clsStega = Nothing End Su

  Private Sub HS_Change()

  TheImage.Move -HS.Value End Sub

  Private Sub HS_Scroll()

  TheImage.Move -HS.Value End Sub

  Private Sub Label5_Click()

  picStego.Picture = Nothing TheImage.Picture = Nothing lblNmFile = "" lblNmFile1 = "" lblNmFile2 = "" lbRema = "" lvwFilesAdded.ListItems.Clear Label5.Enabled = False cmdFinish.Enabled = True End Sub

  Private Sub VS_Change()

  TheImage.Move TheImage.Left, -VS.Value End Sub

  Private Sub VS_Scroll()

  TheImage.Move TheImage.Left, -VS.Value End Sub

  

Private Sub GET_COLORS (COLOR As Long, ByRef R As Single, ByRef G As

  Single, ByRef B As Single) R = COLOR And RGB(255, 0, 0) G = Int((COLOR And RGB(0, 255, 0)) / 256) B = Int(Int((COLOR And RGB(0, 0, 255)) / 256) / 256) NewColor = COLOR If R > 256 Then R = 256 ElseIf R < 0 Then R = 0 End If If G > 256 Then G = 256 ElseIf G < 0 Then G = 0 End If If B > 256 Then B = 256 ElseIf B < 0 Then B = 0 End If End Sub

  Kode Program Form Read (Menu Ekstraksi) :

  Option Explicit Dim strImageFile$

  Dim m_Millimeter& Dim vSteps Const MAX_STEPS = 2 Dim currentStep& Dim WithEvents clsStegaRead As ClsStegano

  Private Sub clsStegaRead_SomeError (strDescription As String)

  MsgBox strDescription End Sub

  

Private Sub clsStegaRead_StatusChanged (prcDone As Long, strStatus As

  String) frmLoad.ProgBar.Value = prcDone frmLoad.lbStatus = strStatus End Sub

  Private Sub cmdExtract_Click()

  Dim ItSel As ListItem Dim OutFile&, tmpFile& Dim dataOut() As Byte On Error GoTo errExtrac Set ItSel = lvwFilesAdded.SelectedItem If Not ItSel Is Nothing Then Files.FileName = "" Files.Filter = "File|*." & ItSel.Text Files.ShowSave If Files.FileName <> "" Then Dim ItFile As ClsFile tmpFile = FreeFile Set ItFile = clsStegaRead.GetFile(ItSel.Key) Open ItFile.FileName For Binary As tmpFile dataOut() = InputB(LOF(tmpFile), tmpFile) Close tmpFile OutFile = FreeFile Open Files.FileName For Binary As OutFile Put OutFile, , dataOut() Close OutFile lblNmFile1.Caption = Files.FileTitle picEmbed.Picture = LoadPicture(Files.FileName) MsgBox "Ekstraksi sukses!" End If End If cmdTarget.Enabled = False cmdExtract.Enabled = False Label5.Enabled = True cmdFinish.Enabled = True Exit Sub errExtrac: MsgBox Err.Description End Sub

  Private Sub cmdFinish_Click()

  Unload Me End Sub

  Private Sub cmdNext_Click()

  cmdNext.Enabled = False currentStep = currentStep + 1 lbStep = vSteps(currentStep) frStep(currentStep).Visible = True If currentStep >= MAX_STEPS Then cmdNext.Enabled = False cmdFinish.Enabled = True End If If currentStep = 1 Then frmLoad.Show vbModeless, Me If Not clsStegaRead.DecodeIt Then MsgBox "Embed Image tidak ada ...." currentStep = MAX_STEPS - 1 Else Dim ItTmp As ClsFile, Itlvw As ListItem Dim I& I = 1 For Each ItTmp In clsStegaRead Set Itlvw = lvwFilesAdded.ListItems.Add(,

  ItTmp.KeyFile, ItTmp.TypeFile) Itlvw.SubItems(1) = ItTmp.FileTitle Itlvw.SubItems(2) = ItTmp.LenBytes I = I + 1 Next lbRema = "Bytes attached in Image: " & clsStegaRead.BytesAdded

  End If cmdNext_Click Unload frmLoad End If cmdExtract.Enabled = True Label5.Enabled = False cmdTarget.Enabled = False If currentStep = 2 Then End IF End Sub

  Private Sub cmdTarget_Click()

  Dim ToW&, ToH&, InW&, InH&, mPad& mPad = 2 Files.Filter = "Image File|*.bmp" Files.ShowOpen strImageFile = Files.FileName lblNmFile.Caption = Files.FileTitle If strImageFile <> "" And VBA.Right$(strImageFile, 4) = ".bmp" Then TheImage.Picture = LoadPicture(strImageFile) clsStegaRead.ImageFile = strImageFile ToW = Me.ScaleWidth - mPad - mPad ToH = Me.ScaleHeight - mPad - mPad InW = TheImage.Picture.Width / m_Millimeter InH = TheImage.Picture.Height / m_Millimeter

  VS.Max = InH - HS.Top + mPad HS.Max = InW - VS.Left + mPad

  VS.LargeChange = ToH - HS.Height HS.LargeChange = ToW - VS.Width cmdNext.Enabled = True Else MsgBox "Error file", vbCritical, "Citra rusak" End If End Sub

  Private Sub Form_Load()

  cmdExtract.Enabled = False currentStep = 0 Set clsStegaRead = New ClsStegano m_Millimeter = ScaleX(100, vbPixels, vbMillimeters) vSteps = Array("Langkah 1: Pilih Stego Image:", "Langkah 2: Ekstraksi embed image:", "Langkah 3: Pilih citra untuk di ekstraksi:", "Selesai") End Sub

  Private Sub Form_Unload(Cancel As Integer)

  Dim It As ListItem For Each It In lvwFilesAdded.ListItems Kill clsStegaRead(It.Key).FileName Next Set clsStegaRead = Nothing End Sub

  Private Sub HS_Change()

  TheImage.Move -HS.Value End Sub

  Private Sub HS_Scroll()

  TheImage.Move -HS.Value End Sub

  Private Sub Label5_Click()

  TheImage.Picture = Nothing lblNmFile = "" lvwFilesAdded.ListItems.Clear picEmbed.Picture = Nothing lblNmFile1 = "" Label5.Enabled = False End Sub

  Private Sub VS_Change()

  TheImage.Move TheImage.Left, -VS.Value End Sub

  Private Sub VS_Scroll()

  TheImage.Move TheImage.Left, -VS.Value End Sub

  Kode Program Form MSEStego (Hitung MSE) :

  Option Explicit Dim NmFile, FileTitle As String Dim NmFile1, FileTitle1 As String

  Private Declare Function SetPixel Lib "gdi32" (ByVal hDC As Long, ByVal X As Long, ByVal Y As Long, ByVal crColor As Long) As Long Dim wt(400, 400) As Integer Dim h(3, 3) As Single Dim R1 As Single Dim G1 As Single Dim B1 As Single Dim NewColor As Long Dim NewColor1 As Long Dim R2 As Single Dim G2 As Single Dim B2 As Single Dim Gray1 As Single Dim Gray2 As Single Dim X1, Y1 As Single Dim X2, Y2 As Single Dim X, Y As Integer Dim MSE As Single Dim Dimensi1 As Single Dim Dimensi2 As Single Dim TNilPixel As Single Dim Selisih As Single Dim TSelisih As Single Private Declare Function SetPixelV Lib "gdi32" (ByVal hDC As Long, ByVal X As Long, ByVal Y As Long, ByVal crColor As Long) As Byte Private Declare Function GetPixel Lib "gdi32" (ByVal hDC As Long, ByVal X As Long, ByVal Y As Long) As Long

  

Private Sub GET_COLORS(COLOR As Long, ByRef R As Single, ByRef G As

Single, ByRef B As Single)

  NewColor = 0 R = COLOR And RGB(255, 0, 0) G = Int((COLOR And RGB(0, 255, 0)) / 256) B = Int(Int((COLOR And RGB(0, 0, 255)) / 256) / 256) NewColor = COLOR If R > 256 Then R = 256 ElseIf R < 0 Then R = 0 End If If G > 256 Then G = 256 ElseIf G < 0 Then G = 0 End If If B > 256 Then B = 256 ElseIf B < 0 Then B = 0 End If End Sub

  Sub Proses()

  For X1 = 0 To 175 Step 10 DoEvents For Y1 = 0 To 125 Step 10 DoEvents

  GET_COLORS PicCover.Point(X, Y), R1, G1, B1 If R1 > 255 Then R1 = 255 If R1 < 0 Then R1 = 0 If B1 > 255 Then B1 = 255 If B1 < 0 Then B1 = 0 If G1 > 255 Then G1 = 255 If G1 < 0 Then G1 = 0 Gray1 = (R1 + G1 + B1) / 3 If Gray1 < 0 Then Gray1 = 0 If Gray1 > 255 Then Gray1 = 255 For X2 = 0 To 175 Step 10 DoEvents For Y2 = 0 To 125 Step 10 DoEvents GET_COLORS picStego.Point(X, Y), R2, G2, B2 If R2 > 255 Then R2 = 255 If R2 < 0 Then R2 = 0 If B2 > 255 Then B2 = 255 If B2 < 0 Then B2 = 0 If G2 > 255 Then G2 = 255 If G2 < 0 Then G2 = 0 Gray2 = (R2 + G2 + B2) / 3 If Gray2 < 0 Then Gray2 = 0 If Gray2 > 255 Then Gray2 = 255 Selisih = Abs(Gray1 - Gray2) TSelisih = TSelisih + (Selisih ^ 2) ' Tselisih : total selisih lblMSE.Caption = Format(TSelisih, "###.##") Gray1 = 0 Gray2 = 0 Next Y2 Next X2 Next Y1 Next X1 MSE = (1 / Dimensi1) * Tselisih lblMSE.Caption = Format(MSE, "###.##") End Sub

  Private Sub cmdBersih_Click()

  PicCover.Picture = Nothing picStego.Picture = Nothing lblNmFile = "" lblNmFile1 = "" lblDimensi = "" lblMSE = "" MSE = 0 R1 = 0 G1 = 0 B1 = 0 NewColor = 0 NewColor1 = 0 R2 = 0 G2 = 0 B2 = 0

  Gray1 = 0 Gray2 = 0 X1 = 0 Y1 = 0 X2 = 0 Y2 = 0 X = 0 Y = 0 MSE = 0 Dimensi1 = 0 Dimensi2 = 0 TNilPixel = 0 Selisih = 0 TSelisih = 0 End Sub

  Private Sub cmdLoadCover_Click()

  cd.Filter = "Image File|*.bmp" cd.ShowOpen NmFile = cd.FileName FileTitle = cd.FileTitle lblNmFile.Caption = FileTitle If NmFile <> "" Then PicCover.Picture = LoadPicture(NmFile) End If Dimensi1 = PicCover.Width * PicCover.Height lblDimensi.Caption = Dimensi1 End Sub

  Private Sub cmdLoadStego_Click()

  cd.Filter = "Image File|*.bmp" cd.ShowOpen NmFile1 = cd.FileName FileTitle1 = cd.FileTitle lblNmFile1.Caption = FileTitle1 If NmFile <> "" Then picStego.Picture = LoadPicture(NmFile1) End If Dimensi2 = picStego.Width * picStego.Height End Sub

  Private Sub cmdProses_Click()

  Call Proses End Sub

  Private Sub cmdSelesai_Click()

  Unload Me End Sub

  Kode Program Class Modules – clsStegano:

  Option Explicit Private BmpHead As winBMPFileHeader Private BmpInfo As BITMAPINFOHEADER Private bmpPalette() As BITMAPPalette

  Private DeepColor& Dim BinaryAttach() As tBits, BinaryImg() As tBits Dim bImgData() As Byte, bAttachData() As Byte Dim mImageFile$ Dim mOutputImageFile$ Dim mFilesAdded& Dim OutFile& Dim mBytesLimit& Dim mBytesAdded& Dim colFiles As Collection Dim cTAG() As Byte Event StatusChanged(prcDone As Long, strStatus As String) Event SomeError(strDescription As String) Public bolCover As Boolean Public bolEmbed As Boolean

  Public Function NewEnum() As IUnknown

  Set NewEnum = colFiles.[_NewEnum] End Function

  Public Property Get ImageFile() As String

  ImageFile = mImageFile End Property

  Public Property Let ImageFile (ByVal vNewValue As String)

  mImageFile = vNewValue mBytesLimit = FileLen(mImageFile) / 8 End Property

  Public Property Get FilesAdded() As Long

  FilesAdded = mFilesAdded End Property

  

Public Function AddFile (strFile As String, strTitle As String, Key As

  String) As Boolean Dim tmpFile As ClsFile On Local Error GoTo AddErr Set tmpFile = New ClsFile If FileExist(strFile) Then With tmpFile .KeyFile = Key .FileName = strFile .FileTitle = strTitle .LenBytes = FileLen(strFile) .TypeFile = VBA.Right$(strFile, 3) mBytesAdded = mBytesAdded + .LenBytes If mBytesAdded > mBytesLimit Then mBytesAdded = mBytesAdded - .LenBytes Err.Raise 9001, "Tidak dapat disisip, karena embed terlalu besar !" End If End With End If colFiles.Add tmpFile, Key mFilesAdded = mFilesAdded + 1 AddFile = True Exit Function

  AddErr: RaiseEvent SomeError(Err.Description & " in " & Err.Source) End Function

  Public Function RemoveFile (Key As String) As Boolean

  On Local Error GoTo AddErr Dim tmpFile As ClsFile Set tmpFile = colFiles(Key) mBytesAdded = mBytesAdded - tmpFile.LenBytes Set tmpFile = Nothing colFiles.Remove Key RemoveFile = True mFilesAdded = mFilesAdded - 1 Exit Function AddErr: RaiseEvent SomeError(Err.Description) Err.Clear End Function

  Public Function GetFile (Key As String) As ClsFile

  On Local Error GoTo GetErr Set GetFile = colFiles(Key) Exit Function GetErr: RaiseEvent SomeError(Err.Description) Err.Clear End Function

  Private Sub Class_Initialize ()

  Set colFiles = New Collection cTAG() = StrConv("TAG:Int21", vbFromUnicode) End Sub

  Public Function EncodeIt () As Boolean

  On Local Error GoTo EncodeErr If FileExist(mImageFile) Then Dim tmpPalette As BITMAPPalette Call ReadImg_ Call Convert2BinaryArray_(bImgData(), BinaryImg()) DoEvents

  RaiseEvent StatusChanged(0, "Pembentukan embed...") OutFile = FreeFile

  Open "c:\tmp_C23F41AA.dat" For Binary As #OutFile Put #OutFile, , cTAG() Put #OutFile, , mFilesAdded RaiseEvent StatusChanged(0, "tunggu...") ReadAttach_ Close #OutFile ConvertAttach_ Join_Img_Files_ Kill "c:\tmp_C23F41AA.dat" 'delete buffer file RaiseEvent StatusChanged(100, "Selesai!") Else RaiseEvent SomeError("File tidak ada") End If Exit Function EncodeErr: RaiseEvent SomeError(Err.Description) Err.Clear Close End Function

  Public Function DecodeIt () As Boolean

  If Not ReadTag_ Then 'melihat apakah ada penyisip RaiseEvent SomeError("Data embed tidak ada") Else ExtractData_ DecodeIt = True End If End Function

  Public Sub Save2Image ()

  Dim strDone$ If OutputImageFile <> "" Then RaiseEvent StatusChanged(0, "sedang menyimpan file...") If Not SaveImg_() Then strDone = "Error penyimpanan" Else strDone

  = "File sudah disimpan !" RaiseEvent StatusChanged(100, strDone) Else RaiseEvent StatusChanged(0, "Citra tidak ada!") End If End Sub

  Private Function SaveImg_ () As Boolean

  Dim I&, J&, xFil&, lngCounter& Dim maxArr& On Local Error GoTo SaveImgErr maxArr = UBound(bImgData()) For J = 0 To UBound(BinaryImg()) bImgData(I) = Bin2Asc(BinaryImg(J)) I = I + 1 If I > maxArr Then Exit For End If

  RaiseEvent StatusChanged(J * 100 / maxArr, "Simpan stego image...") DoEvents Next J xFil = FreeFile Open mOutputImageFile For Binary As #xFil Put #xFil, , BmpHead Put #xFil, , BmpInfo For lngCounter = 1 To DeepColor Put #1, , bmpPalette(lngCounter) Next lngCounter Put #xFil, , bImgData Close #xFil SaveImg_ = True frmAdd.Show Exit Function SaveImgErr: RaiseEvent SomeError(Err.Description) Err.Clear End Function

  Private Sub ReadAttach_ ()

  Dim xFil&, I&, lenBy& Dim It As ClsFile Dim vData() As Byte, strOut() As Byte Dim Str3 As String * 3, Str10 As String * 10 Dim strShort$ On Local Error GoTo ReadAttachErr xFil = FreeFile RaiseEvent StatusChanged(0, "Pembacaan nilai piksel...") I = 0 For Each It In colFiles Open It.FileName For Binary As #xFil vData = InputB(LOF(xFil), #xFil) Str3 = It.TypeFile Str10 = It.FileTitle I = I + 1 RaiseEvent StatusChanged((I * 100 / mFilesAdded), "Pembacaan nilai piksel..." & Str10) strOut() = StrConv(Str3, vbFromUnicode) Put #OutFile, , strOut() Put #OutFile, , It.LenBytes strOut() = StrConv(Str10, vbFromUnicode) Put #OutFile, , strOut() Put #OutFile, , vData() DoEvents Close #xFil Next Exit Sub ReadAttachErr: RaiseEvent SomeError(Err.Description) Err.Clear End Sub

  Private Sub ReadHeadImg_( pFile&)

  Dim tmpPalette As BITMAPPalette Dim I& Get #pFile, , BmpHead Get #pFile, , BmpInfo DeepColor = ((BmpHead.lngBitmapOffset - 54) / Len(tmpPalette)) If DeepColor > 0 Then ReDim bmpPalette(1 To DeepColor) For I = 1 To DeepColor Get #pFile, , bmpPalette(I) Next I End Sub

  Private Sub ReadImg_ ()

  Dim xFil&, LenBytes&, lngCounter& Dim bytColor As Byte xFil = FreeFile 'menyatakan bit2 yg bs disisipkan/free file Open mImageFile For Binary As #xFil RaiseEvent StatusChanged(0, "Baca Header...") ReadHeadImg_ xFil ReDim bImgData(0 To (BmpHead.lngFileSize -

  BmpHead.lngBitmapOffset) - 1) Call NilaiPiksel RaiseEvent StatusChanged(0, "Baca piksel citra...") LenBytes = UBound(bImgData()) For lngCounter = 0 To LenBytes If Not EOF(xFil) Then Get #xFil, , bytColor bImgData(lngCounter) = bytColor End If RaiseEvent StatusChanged(lngCounter * 100 / LenBytes, "Baca nilai piksel citra...") DoEvents Next lngCounter Close #xFil End Sub

  Private Function ReadTag_ () As Boolean

  Dim binData() As tBits, binTag() As tBits Dim I&, J&, Cur&, bytColor As Byte Dim strMyTag As String * 9 Dim lenStruct&, xFil& Dim xyTb(0) As tBits RaiseEvent StatusChanged(0, "Cari header...") lenStruct = 9 ReDim binTag(0 To lenStruct) xFil = FreeFile Open mImageFile For Binary As #xFil ReadHeadImg_ xFil lenStruct = 72 ReDim bImgData(0 To lenStruct) For I = 0 To lenStruct If Not EOF(xFil) Then Get #xFil, , bytColor bImgData(I) = bytColor End If Next I Close #xFil Call Convert2BinaryArray_(bImgData(), binData()) lenStruct = UBound(binTag()) Cur = 0 lenStruct = 9 For I = 0 To lenStruct For J = 0 To 7 binTag(I).Bits(J) = binData(Cur).Bits(7) Cur = Cur + 1 Next J If Cur >= 72 Then Exit For Next I strMyTag = Binary2String(binTag) ReadTag_ = (strMyTag = "TAG:Int21") End Function

  Private Sub ExtractData_()

  Dim OutFile&, ImgFile& Dim tmpFile& Dim dataOut() As Byte Dim BinOut() As tBits Dim Bytes2Read&, Cur&, I&, J& Dim bytColor As Byte Dim sTAg$, lFA&, sTF$, lLF&, sNF$ ImgFile& = FreeFile Open mImageFile$ For Binary As #ImgFile

  Call ReadHeadImg_(ImgFile) Call NilaiPiksel

  Bytes2Read = LOF(ImgFile) - Loc(ImgFile) ReDim dataOut(0 To Bytes2Read) For I = 0 To (Bytes2Read) If Not EOF(ImgFile) Then Get #ImgFile, , bytColor dataOut(I) = bytColor End If Next I Close #ImgFile Call Convert2BinaryArray_(dataOut(), BinaryImg()) Bytes2Read = UBound(BinaryImg()) ReDim dataOut(0 To Bytes2Read) ReDim BinOut(0 To Bytes2Read) Cur = 0 For I = 0 To (Bytes2Read) For J = 0 To 7 If Cur >= Bytes2Read Then Exit For BinOut(I).Bits(J) = BinaryImg(Cur).Bits(7) Cur = Cur + 1 Next J dataOut(I) = Bin2Asc(BinOut(I)) Next I OutFile = FreeFile Open "c:\tmp_DD2741C.dat" For Binary As #OutFile Put #OutFile, , dataOut() Close OutFile OutFile = FreeFile Open "c:\tmp_DD2741C.dat" For Binary As #OutFile sTAg = ExtractItem_(OutFile, 9, 0, 1) lFA = ExtractItem_(OutFile, 4, 0, 0) Dim strFile$ Dim It As ClsFile For I = 1 To lFA sTF = ExtractItem_(OutFile, 3, 0, 1) lLF = ExtractItem_(OutFile, 4, 0, 0) sNF = ExtractItem_(OutFile, 10, 0, 1) strFile = "c:\" & sNF & "DD2741C." & sTF tmpFile = FreeFile

  Open strFile For Binary As tmpFile dataOut() = InputB(lLF, OutFile) Put tmpFile, , dataOut() Close tmpFile AddFile strFile, sNF, CStr("c0" & I) Next Close OutFile Kill "c:\tmp_DD2741C.dat" End Sub

  Private Function ExtractItem_ (pFile As Long, Bytes2Read As Long,

  Bytes2Look As Long, RetType As Integer) Dim Memo() As Byte Dim lLong& Dim strEnd$ Memo() = InputB(Bytes2Read, pFile) If RetType = 0 Then CopyMemory lLong, Memo(0), Len(lLong) ExtractItem_ = lLong ElseIf RetType = 1 Then strEnd = Memo() ExtractItem_ = StrConv(strEnd, vbUnicode) End If End Function

  Private Sub ConvertAttach_ ()

  Dim byt As Byte Dim LenF&, I& OutFile = FreeFile LenF = FileLen("c:\tmp_C23F41AA.dat") ReDim bAttachData(0 To LenF) Open "c:\tmp_C23F41AA.dat" For Binary As #OutFile Do While Not EOF(OutFile) Get OutFile, , byt bAttachData(I) = byt I = I + 1 Loop Close #OutFile End Sub

  Private Sub Join_Img_Files_ ()

  Dim I&, J&, K&, LenImg&, LenF& LenImg = UBound(BinaryImg()) LenF = UBound(BinaryAttach()) I = 0 For J = 0 To LenF For K = 0 To 7 BinaryImg(I).Bits(7) = BinaryAttach(J).Bits(K) I = I + 1 Next K If I >= LenImg Then Exit For RaiseEvent StatusChanged((I * 100 / LenImg), "Penyisipan embed image --> Cover image...") DoEvents Next J End Sub

  Private Sub Convert2BinaryArray_ (Source() As Byte, RetArray() As

  tBits) Dim LenArray&, I& Dim arrBinary() As tBits Dim Bits8 As tBits LenArray = UBound(Source()) ReDim arrBinary(0 To LenArray) For I = 0 To LenArray Bits8 = ByteToBinary(Source(I)) arrBinary(I) = Bits8 RaiseEvent StatusChanged((I * 100 / LenArray), "Konversi Hex to Biner...") DoEvents Next I RetArray = arrBinary End Sub

  Private Function FileExist (strFile As String) As Boolean

  Dim Rs$, Tama As Boolean Dim Tm& Rs = Dir(strFile) FileExist = (Len(Rs)) End Function

  Public Property Get OutputImageFile () As String

  OutputImageFile = mOutputImageFile End Property

  Public Property Let OutputImageFile (ByVal sNewFile As String)

  mOutputImageFile = sNewFile End Property

  Private Sub Class_Terminate ()

  Dim tmpClass As ClsFile For Each tmpClass In colFiles Set tmpClass = Nothing Next Set colFiles = Nothing End Sub

  Public Property Get BytesAdded () As Long

  BytesAdded = mBytesAdded End Property

  Public Property Get BytesTotal () As Variant

  BytesTotal = mBytesLimit End Property

  Kode Program Modules :

  Option Explicit Dim RR, RR1 As Single Dim Bh, Ch, Dh, Eh, Fh As String Dim ASCIIBh, ASCIICh, ASCIIDh, ASCIIEh, ASCIIFh, ASCIIBit As String

  Dim bitLSB() As Single Private Declare Function GetPixel Lib "gdi32" (ByVal hDC As Long, ByVal X As Long, ByVal Y As Long) As Long Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As Long) Public Type tBits Bits(0 To 7) As Single End Type Public bitR As Single Public bitG As Single Public bitB As Single Type winBMPFileHeader strFileType As String * 2 lngFileSize As Long bytReserved1 As Integer bytReserved2 As Integer lngBitmapOffset As Long End Type Type BITMAPINFOHEADER biSize As Long biWidth As Long biHeight As Long biPlanes As Integer byBitCount As Integer biCompression As Long biSizeImage As Long biXPelsPerMeter As Long biYPelsPerMeter As Long biClrUsed As Long biClrImportant As Long End Type Type BITMAPPalette lngBlue As Byte lngGreen As Byte lngRed As Byte lngReserved As Byte End Type Public bolCover As Boolean Public bolEmbed As Boolean Public bolEkstrak As Boolean

  Sub NilaiPiksel()

  On Error Resume Next Dim NewColor As Long Dim X, Y As Integer Dim R, G, B As Integer Dim Pic1 As PictureBox Dim bChar As Single Pic1.Picture = frmAdd.TheImage For X = 0 To Pic1.ScaleWidth For Y = 0 To Pic1.ScaleHeight NewColor = GetPixel(Pic1.hDC, X, Y) R = NewColor And 255 G = (NewColor And 65280) / 256 B = (NewColor And 16711680) / 256 / 256 If R > 256 Then R = 256 If R < 0 Then R = 0

  If B > 256 Then B = 256 If B < 0 Then B = 0 If G > 256 Then G = 256 If G < 0 Then G = 0 bChar = (R + G + B) / 3 If bolCover = True Then ByteToBinary (bChar) ElseIf bolEmbed = True Then Call ASCII_Embed(bChar) ElseIf bolEkstrak = True Then Call ByteToBinary(bChar) Call BinHex End If Next Y Next X End Sub

  

Private Sub GET_COLORS (COLOR As Long, ByRef R As Single, ByRef G As

  Single, ByRef B As Single) R = COLOR And RGB(255, 0, 0) G = Int((COLOR And RGB(0, 255, 0)) / 256) B = Int(Int((COLOR And RGB(0, 0, 255)) / 256) / 256) NewColor = COLOR If R > 256 Then R = 256 ElseIf R < 0 Then R = 0 End If If G > 256 Then G = 256 ElseIf G < 0 Then G = 0 End If If B > 256 Then B = 256 ElseIf B < 0 Then B = 0 End If End Sub

  Private Sub GET_COLORS_BINER (COLOR As Long, ByRef RR As Single)

  RR = COLOR End Sub Sub ChcSYmbols() Dim q As Integer For q = 0 To 8 If LCase(ASCIIBit) Then bitLSB(q) = Bh ElseIf UCase(ASCIIBit) Then bitLSB(q) = Ch ElseIf ASCIIBit = "" Then bitLSB = Dh ElseIf ASCIIBit = Asc(0) And Asc(9) Then bitLSB(q) = Eh Else bitLSB(q) = Fh End If Next q End Sub

  Sub ASCII_Embed (ByVal data As Single)

  Dim strASCII As Single Dim strBiner As Single If data = 0 Then strASCII = 30 strBiner = "00110000" ElseIf data = 1 Then strASCII = 31 strBiner = "00110001" ElseIf data = 2 Then strASCII = 32 strBiner = "00110010" ElseIf data = 3 Then strASCII = 33 strBiner = "00110011" ElseIf data = 4 Then strASCII = 34 strBiner = "00110100" ElseIf data = 5 Then strASCII = 35 strBiner = "00110101" ElseIf data = 6 Then strASCII = 36 strBiner = "00110110" ElseIf data = 7 Then strASCII = 37 strBiner = "00110111" ElseIf data = 8 Then strASCII = 38 strBiner = "00111000" ElseIf data = 9 Then strASCII = 39 strBiner = "00111001" ElseIf data = "" Then strASCII = 20 strBiner = "00111001" End If Call Insert_Embed End Sub

  Sub strASCII ()

  Dim NewColor As Long Dim X, Y As Integer Dim Pic1 As PictureBox Dim bChar As Single On Error Resume Next Pic1.Picture = frmAdd.TheImage For X = 0 To Pic1.ScaleWidth For Y = 0 To Pic1.ScaleHeight GET_COLORS_BINER frmAdd.TheImage.Point(X, Y), RR1 bitLSB(X) = Right(RR1, 5) ASCIIBit = Asc(bitLSB(X))

  Call BinHex Next Y Next X End Sub

  Sub BinHex ()

  If LCase(bitLSB) = "11110" Then bitLSB(q) = Eh ElseIf UCase(bitLSB) = "11101" Then bitLSB(q) = Dh ElseIf ASCIIBit = "11111" Then bitLSB = Fh ElseIf ASCIIBit = "00000" Then bitLSB(q) = 0 ElseIf ASCIIBit = "00001" Then bitLSB(q) = 1 ElseIf ASCIIBit = "00010" Then bitLSB(q) = 2 ElseIf ASCIIBit = "00011" Then bitLSB(q) = 3 ElseIf ASCIIBit = "00100" Then bitLSB(q) = 4 ElseIf ASCIIBit = "00101" Then bitLSB(q) = 5 ElseIf ASCIIBit = "00110" Then bitLSB(q) = 6 ElseIf ASCIIBit = "00111" Then bitLSB(q) = 7 ElseIf ASCIIBit = "01000" Then bitLSB(q) = 8 ElseIf ASCIIBit = "01001" Then bitLSB(q) = 9 End If strembed = strembed & bitLSB(q) End Sub

  Function Binary2String (laData() As tBits)

  Dim ArrEnd() As Byte Dim strEnd$, I& ReDim ArrEnd(0 To UBound(laData())) strEnd$ = "" For I = 0 To UBound(laData()) strEnd = strEnd & Chr(Bin2Asc(laData(I))) Next I strEnd = VBA.Left$(strEnd, Len(strEnd) - 1) Binary2String = strEnd End Function

  Function Bin2Asc (Bin As tBits) As Integer

  Dim num As Integer Dim Fact%, I& num = 0 Fact = 128 For I = 0 To 7 num = num + Bin.Bits(I) * Fact Fact = Fact / 2 Next I

  Bin2Asc = num End Function

  

Function Convert2BinaryArray (laData() As Byte, RetArray() As tBits,

  olbStatus As Label, ProgBar As ProgressBar) Dim LenArray&, I&, J&, K& Dim strBin$, Arr() As String Dim arrBinary() As tBits Dim Bits8 As tBits olbStatus = "Convert Hex to Binary..."

  LenArray = UBound(laData()) ReDim arrBinary(0 To LenArray) For I = 0 To LenArray Bits8 = ByteToBinary(laData(I)) K = 1 For J = 0 To 7 arrBinary(I).Bits(J) = Mid(strBin, K, 1) K = K + 1 Next J ProgBar.Value = I * 100 / LenArray DoEvents Next I RetArray = arrBinary End Function

  Function ByteToBinary (ByVal data As Byte) As tBits

  Dim tmpBit As tBits Dim I As Long, J& I = &H80 While I tmpBit.Bits(J) = IIf(data And I, "1", "0") I = I \ 2 J = J + 1 Wend ByteToBinary = tmpBit End Function

  Sub Insert_Embed ()

  Dim ASCII_Sim As String Dim I As Integer Dim Bin_Data As Single For I = 1 To Len(thedata) If I = 1 Then ASCII_Sim = "1e" ElseIf thedata = 20 Then ASCII_Sim = "Dh" ElseIf thedata = "" Then ASCII_Sim = "1f" End If Next I Call ASCII2Bin(thedata) End Sub

  Function ASCII2Bin (ByVal thedata As Byte) As tBits

  Dim tmpBit As tBits Dim PicCover As Image Dim picStego As Image Dim I As Long, J&

  Dim xx As Integer Dim yy As Integer I = &H80 '10000000 While I tmpBit.Bits(J) = IIf(thedata And I, "1", "0") I = I \ 2 J = J + 1 Wend ByteToBinary = tmpBit PicCover.Picture = frmAdd.TheImage For X = 0 To PicCover.ScaleWidth For Y = 0 To PicCover.ScaleHeight PicCover.PSet (X, Y), Right(tmpBit.Bits(J), 5) 'frmAdd.picStego.PSet (X, Y), RGB(0, 255, 10) 'Picture1.PSet (X, Y), RGB(Gray2, Gray2, Gray2) PicCover.Refresh Next Y Next X picStego.Picture = PicCover.Picture For xx = 1 To picStego.Width For yy = 1 To picStego.Height GET_COLORS picStego.Point(xx, yy), R, G, B bitR = R bitG = G bitB = B Next yy Next xx : resusu End Function