LAMPIRAN A
LISTING PROGRAM
1. Menu Utama
Public Class frmMenu
Private Sub HelpToolStripMenuItem_Click(ByVal sender As _ System.Object, ByVal e As System.EventArgs) Handles _
HelpToolStripMenuItem.Click frmHelp.Show()
End Sub
Private Sub QuitToolStripMenuItem_Click(ByVal sender As _ System.Object, ByVal
e As System.EventArgs) Handles QuitToolStripMenuItem.Click End
End Sub
Private Sub ZeroCompressionToolStripMenuItem_Click(ByVal sender As _
System.Object, ByVal e As System.EventArgs) Handles _ ZeroCompressionToolStripMenuItem.Click
frmLSB.Show() End Sub
Private Sub DifferenceCodingToolStripMenuItem_Click(ByVal sender As _
System.Object, ByVal e As System.EventArgs) Handles _ DifferenceCodingToolStripMenuItem.Click
frmStegoMLSB.Show() End Sub
Private Sub AboutToolStripMenuItem_Click(ByVal sender As _ System.Object, ByVal e As System.EventArgs) Handles _ AboutToolStripMenuItem.Click
frmAbt.Show() End Sub
End Class
2. Algoritma LSB
Imports System.Data.OleDb Imports Microsoft.VisualBasic
Public Class frmLSB
Dim WAVBuffer As System.IO.FileInfo Dim WAVBuffer1 As System.IO.FileInfo Dim JumSampel1 As Integer
Dim JumSampel2 As Integer Dim BitSampel1 As Integer Dim BitSampel2 As Integer Dim SNR As Single
Dim LenPesan As Integer Dim jumBitPesan As Integer
Private Sub cmdFileAsal_Click(ByVal sender As System.Object, ByVal e As _
System.EventArgs) Handles cmdFileAsal.Click If RadioButton1.Checked = True Then
openDialog.Title = "Open Cover Audio" openDialog.ShowDialog()
cmdFileText.Enabled = True cmdFileText.Focus()
ElseIf RadioButton2.Checked = True Then openDialog.Filter = "|*.wav"
openDialog.Title = "Open Stego Audio" openDialog.ShowDialog()
cmdProses.Text = "Ekstraksi" cmdSave.Enabled = False Else
MsgBox("Pilih Proses") End If
End Sub
Sub KonversiBIN()
Dim LenPesan As Integer Dim i As Integer
Dim BinerPesan As Long
LenPesan = Len(txtPesan.Text) For i = 1 To LenPesan
Dim bitKey As New ASCIItoBIN(Mid(txtPesan.Text, i, 1)) ListBox1.Items.Add(bitKey.convertASCIItoBIN)
BinerPesan = bitKey.convertASCIItoBIN Next
End Sub Sub Bersih()
JumSampel1 = 0 JumSampel2 = 0 BitSampel1 = 0 BitSampel2 = 0 SNR = 0
cmdProses.Enabled = False cmdSave.Enabled = False cmdFileAsal.Enabled = True txtFileAsal.Text = "" lblSize1.Text = "" lblJumSampel1.Text = "" lblJumSampel2.Text = "" lblSize2.Text = "" lblSNR.Text = ""
lblTotBitSampel1.Text = "" lblTotBitSampel2.Text = "" txtPesan.Text = ""
lblNmStego.Text = "" lblFilePesan.Text = "" ListBox1.Items.Clear() ListBox2.Items.Clear() filePesan = ""
cmdSave.Text = "Save"
Private Sub cmdProses_Click(ByVal sender As System.Object, ByVal e As _
System.EventArgs) Handles cmdProses.Click cmdProses.Enabled = False
Call KonversiBIN()
Dim Ready As Boolean = True Dim PesanEmbed As String
Dim WAVFileStream As System.IO.FileStream If RadioButton1.Checked = True Then
Try
WAVFileStream = WAVBuffer.OpenRead Catch ex As Exception
Ready = False
MsgBox("Baca File Wav", MsgBoxStyle.Critical, "Error")
End Try
ElseIf RadioButton2.Checked = True Then Try
WAVFileStream = WAVBuffer1.OpenRead Catch ex As Exception
Ready = False
MsgBox("Baca File Wav", MsgBoxStyle.Critical, "Error")
End Try
End If
If Ready = True Then
If RadioButton1.Checked = True Then
Dim WAVBytes As Long = WAVFileStream.Length Dim WAVExt As String = WAVBuffer.Extension Dim WAVByteArray(WAVBytes) As Byte
WAVFileStream.Read(WAVByteArray, 0, WAVBytes) If txtPesan.Text <> "" Then
PlainText = txtPesan.Text
Dim PlainTextByteArray(PlainText.Length) As Byte
'Penyisipan LSB
For i As Integer = 0 To (PlainText.Length - 1)_ PlainTextByteArray(i) =
CByte(AscW(PlainText.Chars(i)))
ListBox2.Items.Add(PlainTextByteArray(i)) Application.DoEvents()
Next
Dim WAVAndText(WAVBytes + PlainText.Length + _ SentinelString.Length) As Byte
For t As Long = 0 To (WAVBytes - 1) WAVAndText(t) = WAVByteArray(t) Application.DoEvents()
ListBox2.Items.Add(WAVAndText(t)) Next
Dim WAVAndText1(WAVBytes + SentinelString.Length) _
As Byte
Dim count As Integer = 0
For r As Long = WAVBytes To (WAVBytes + _ (SentinelString.Length) - 1)
WAVAndText(r) = SentinelString(count) Application.DoEvents()
ListBox2.Items.Add(WAVAndText(r)) count += 1
Next count = 0
For q As Long = (WAVBytes + SentinelString.Length) To _
(WAVBytes + SentinelString.Length + PlainText.Length - 1)
WAVAndText(q) = PlainTextByteArray(count) Application.DoEvents()
ListBox2.Items.Add(WAVAndText(q)) count += 1
Next
lblJumSampel1.Text = JumSampel1 BitSampel1 = JumSampel1 * 8
lblTotBitSampel1.Text = BitSampel1
CMD = New OleDbCommand("Select * from DataLSB _ order by IDData desc", Conn)
RD = CMD.ExecuteReader() RD.Read()
If RD.HasRows = True Then
IDData = RD.Item("IDData") + 1 Else
IDData = 1 End If
RD.Close() CMD.Dispose()
NewFileName = Application.StartupPath & _
"\StegoAudioLSB\StegoLSB" & IDData & ".wav" My.Computer.FileSystem.WriteAllBytes(NewFileName, _
WAVAndText,False)
lblNmStego.Text = NewFileName cmdSave.Enabled = True
cmdSave.Focus() Else
MsgBox("Masukkan Pesan Penyisip ...") txtPesan.Focus()
End If 'Ekstraksi LSB
ElseIf RadioButton2.Checked Then txtPesan.Clear()
JumSampel1 = 0
Dim WAVBytes As Long = WAVFileStream.Length Dim WAVExt As String = WAVBuffer1.Extension Dim WAVByteArray(WAVBytes) As Byte
WAVFileStream.Read(WAVByteArray, 0, WAVBytes)
Dim OutterSearch, InnerSearch, StopSearch As Boolean OutterSearch = True
Dim leftCounter As Long Dim rightCounter As Integer leftCounter = 0
rightCounter = 0
Dim WAVAndText(WAVBytes + SentinelString.Length) As Byte
For t As Long = 0 To (WAVBytes - 1) WAVAndText(t) = WAVByteArray(t) Application.DoEvents()
ListBox2.Items.Add(WAVAndText(t)) JumSampel1 = JumSampel1 + 1
Next
Do While (count < (WAVBytes - SentinelString.Length) And _
StopSearch = False)
If (WAVByteArray(count) = SentinelString(0)) Then leftCounter = count + 1
rightCounter = 1 InnerSearch = True
Do While (InnerSearch = True) And (rightCounter < _
SentinelString.Length) _
And (leftCounter < WAVByteArray.Length) If (WAVByteArray(leftCounter) = _
SentinelString(rightCounter)) Then rightCounter += 1
leftCounter += 1 If (rightCounter = _
(SentinelString.Length- 1)) Then StopSearch = True
End If
JumSampel1 = JumSampel1 + 1 Else
InnerSearch = False count += 1
End If Loop
Else
count += 1 End If
Loop
lblJumSampel1.Text = JumSampel1 BitSampel1 = JumSampel1 * 8
lblTotBitSampel1.Text = BitSampel1 If StopSearch = True Then
Do While (leftCounter < WAVBytes) _
txtPesan.AppendText(ChrW(CInt(WAVByteArray(leftCounter)))) PesanEmbed = _
(ChrW(CInt(WAVByteArray(leftCounter)))) leftCounter += 1
Loop
Dim LenPesan As Integer
LenPesan = Len(txtPesan.Text) Dim i As Integer
i, 1))
ListBox1.Items.Add(bitKey.convertASCIItoBIN) Next
txtPesan.Enabled = True MsgBox("Ekstraksi Berhasil")
Else
txtPesan.Text = "Data tidak ada" End If
Else
MsgBox("Pilih Proses ...") End If
End If End Sub
Private Sub cmdKeluar_Click(ByVal sender As System.Object, ByVal e As _
System.EventArgs) Handles cmdKeluar.Click Close()
End Sub
Private Sub openDialog_FileOk(ByVal sender As System.Object, _ ByVal e As System.ComponentModel.CancelEventArgs) Handles _
openDialog.FileOk
If RadioButton1.Checked = True Then
WAVBuffer = New System.IO.FileInfo(openDialog.FileName) txtFileAsal.Text = openDialog.FileName
Dim fileDetails As System.IO.FileInfo = New _ System.IO.FileInfo(txtFileAsal.Text)
lblSize1.Text = fileDetails.Length.ToString ElseIf RadioButton2.Checked = True Then
WAVBuffer1 = New System.IO.FileInfo(openDialog.FileName) txtFileAsal.Text = openDialog.FileName
NamaFile = openDialog.FileName Dim LenFile As Integer
LenFile = Len(NamaFile) Dim NamaFile1 As String = Microsoft.VisualBasic.Mid(NamaFile, _
LenFile - 12, 8) Dim intPos As Integer
intPos = InStr(1, NamaFile, "StegoLSB") If intPos > 0 Then
Dim fileDetails1 As System.IO.FileInfo = New _ System.IO.FileInfo(txtFileAsal.Text)
lblSize1.Text = fileDetails1.Length.ToString cmdProses.Enabled = True
cmdProses.Focus() Else
MsgBox("File Salah ...") cmdProses.Enabled = False cmdFileAsal.Enabled = True cmdFileAsal.Focus()
End If End If
Private Sub frmLSB_Load(ByVal sender As System.Object, ByVal e As _
System.EventArgs) Handles MyBase.Load Call Bersih()
cmdFileText.Enabled = False cmdFileAsal.Enabled = False Call KoneKsi()
End Sub
Private Sub txtPesan_TextChanged(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles txtPesan.TextChanged
If RadioButton1.Checked = True Then cmdProses.Text = "Sisip"
cmdProses.Enabled = True End If
End Sub
Private Sub cmdSave_Click(ByVal sender As System.Object, ByVal e_ As System.EventArgs) Handles cmdSave.Click
cmdSave.Enabled = False
If RadioButton1.Checked = True Then
WAVBuffer1 = New System.IO.FileInfo(NewFileName) lblNmStego.Text = NewFileName
Dim fileDetails1 As System.IO.FileInfo = New _ System.IO.FileInfo(lblNmStego.Text)
lblSize2.Text = fileDetails1.Length.ToString
CMD = New OleDbCommand("Insert into DataLSB (IDData) values _
(" & IDData & ")", Conn)
RD = CMD.ExecuteReader() IDData = 0
RD.Close() CMD.Dispose()
Dim Ready As Boolean = True
Dim WAVFileStream1 As System.IO.FileStream Try
WAVFileStream1 = WAVBuffer1.OpenRead Catch ex As Exception
Ready = False
MsgBox("Baca File Wav", MsgBoxStyle.Critical, "Error")
End Try
Dim WAVBytes1 As Long = WAVFileStream1.Length Dim WAVExt1 As String = WAVBuffer1.Extension Dim WAVByteArray1(WAVBytes1) As Byte
WAVFileStream1.Read(WAVByteArray1, 0, WAVBytes1)
For t As Long = 0 To (WAVBytes1 - 1) Application.DoEvents()
JumSampel2 = JumSampel2 + 1 Next
lblTotBitSampel2.Text = BitSampel1
Dim BitBerubah As Integer = jumBitPesan
SNR = ((BitSampel1 - BitBerubah) / BitSampel1) * 100 lblSNR.Text = Format(SNR, "##.#####") & " %"
End If End Sub
Private Sub cmdBersih_Click(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles cmdBersih.Click
Call Bersih() End Sub
Private Sub RadioButton1_CheckedChanged(ByVal sender As _ System.Object, ByVal e As System.EventArgs) Handles _
RadioButton1.CheckedChanged GroupBox3.Visible = True
cmdFileAsal.Enabled = True End Sub
Private Sub RadioButton2_CheckedChanged(ByVal sender As System.Object,_
ByVal e As System.EventArgs) Handles RadioButton2.CheckedChanged
GroupBox3.Visible = False cmdFileAsal.Enabled = True End Sub
Sub AppHIT()
JumSampel2 = JumSampel2 + 1.01 End Sub
Private Sub cmdFileText_Click(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles cmdFileText.Click
OpenFileDialog1.Filter = "|*.txt" OpenFileDialog1.Title = "File Pesan" OpenFileDialog1.ShowDialog()
End Sub
Private Sub OpenFileDialog1_FileOk(ByVal sender As System.Object, _
ByVal e As System.ComponentModel.CancelEventArgs) Handles _ OpenFileDialog1.FileOk
filePesan = OpenFileDialog1.FileName
lblFilePesan.Text = filePesan 'OpenFileDialog1.FileName Dim fileDetailsPesan As System.IO.FileInfo = New _
System.IO.FileInfo(filePesan)
Dim SizePesan As Single = fileDetailsPesan.Length.ToString If filePesan = "" Then MsgBox("Pesan tidak ada", , "ERR") : _
Exit Sub
Dim pdllAF As New AdvanceFunction
pdllAF.ReadFromFile(filePesan, txtPesan) LenPesan = Len(txtPesan.Text)
jumBitPesan = LenPesan * 8 End Sub
Sub CnvBITS()
End Class
3. Algoritma MLSB
Imports System.Data.OleDb Imports Microsoft.VisualBasic Public Class frmStegoMLSB
Dim WAVBuffer As System.IO.FileInfo Dim WAVBuffer1 As System.IO.FileInfo Dim JumSampel1 As Integer
Dim JumSampel2 As Integer Dim BitSampel1 As Integer Dim BitSampel2 As Integer Dim SNR As Single
Dim PlainText As String Dim IDData As Integer Dim NewFileName As String Dim filePesan As String Dim LenPesan As Integer Dim jumBitPesan As Integer
Private Sub cmdBuka_Click(ByVal sender As System.Object, ByVal e _
As System.EventArgs) Handles cmdBuka.Click openWAV.Title = "Open WAV Files"
openWAV.ShowDialog()
If RadioButton1.Checked = True Then TextBox1.Enabled = True
cmdProses.Text = "Proses" cmdFilePesan.Enabled = True cmdFilePesan.Focus()
ElseIf RadioButton2.Checked = True Then cmdProses.Text = "Ekstraksi"
cmdSave.Enabled = False Else
MsgBox("Pilih Proses") End If
End Sub
Private Sub openWAV_FileOk(ByVal sender As System.Object, ByVal e _
As System.ComponentModel.CancelEventArgs) Handles openWAV.FileOk
Dim NamaFile As String NamaFile = openWAV.FileName
If RadioButton1.Checked = True Then
WAVBuffer = New System.IO.FileInfo(openWAV.FileName)_ TextBox2.Text = openWAV.FileName
Dim fileDetails As System.IO.FileInfo = New _ System.IO.FileInfo(TextBox2.Text)
lblSize.Text = fileDetails.Length.ToString ElseIf RadioButton2.Checked = True Then
Dim intPos As Integer
intPos = InStr(1, NamaFile, "StegoMLSB") If intPos > 0 Then
WAVBuffer = New System.IO.FileInfo(openWAV.FileName) TextBox2.Text = openWAV.FileName
lblSize.Text = fileDetails.Length.ToString cmdProses.Enabled = True
cmdProses.Focus() Else
MsgBox("File Salah") cmdProses.Enabled = False cmdBuka.Enabled = True cmdBuka.Focus()
End If End If End Sub
Sub KonversiBIN()
Dim LenPesan As Integer Dim i As Integer
Dim ASCII5BITS As New ASCIItoBIN(TextBox1.Text) LenPesan = Len(TextBox1.Text)
For i = 1 To LenPesan
Dim bitKey As New ASCIItoBIN(Mid(TextBox1.Text, i, 1)) Dim Bit5 As New ASCIItoBIN(Mid(TextBox1.Text, i, 1)) ListBox1.Items.Add(bitKey.convertASCIItoBIN)
Next i = 0 End Sub
Private Sub cmdProses_Click(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles cmdProses.Click
cmdProses.Enabled = False cmdBuka.Enabled = False Call KonversiBIN()
Dim HEXKey As New ASCIItoBIN(TextBox1.Text & " ") Dim Str As String
Dim MyPesan As String Dim LenPesan As Integer Dim i As Integer
Dim strCS As String, strCS1 As String, strCS2 As String Dim Ready As Boolean = True
Dim PesanEmbed As String
Dim WAVFileStream As System.IO.FileStream Dim Pengurang As Integer
Dim strCSS As Integer
Try
WAVFileStream = WAVBuffer.OpenRead Catch ex As Exception
Ready = False
MsgBox("Baca File Wav", MsgBoxStyle.Critical, "Error") End Try
If Ready = True Then
Dim WAVBytes As Long = WAVFileStream.Length Dim WAVExt As String = WAVBuffer.Extension Dim WAVByteArray(WAVBytes) As Byte
WAVFileStream.Read(WAVByteArray, 0, WAVBytes) 'Penyisipan MLSB
If RadioButton1.Checked = True Then If TextBox1.Text <> "" Then
MyPesan = TextBox1.Text & " " LenPesan = Len(MyPesan)
i = 0
For i = 0 To ListBox2.Items.Count - 1 Str = ListBox2.Items(i) If Str <> "20" Then
If Microsoft.VisualBasic.Left(Str, 1) = "6" _
Or Microsoft.VisualBasic.Left(Str, 1) = "7" Then strCS = "1B " ' & Str Huruf kecil Pengurang = 60
ElseIf Microsoft.VisualBasic.Left(Str, 1) = _
"4" Or Microsoft.VisualBasic.Left(Str, 1) = "5" Then
strCS = "1C " '& Str Huruf Besar Pengurang = 40
ElseIf Microsoft.VisualBasic.Left(Str, 2) = _
"20" Then
strCS = "1D " '& Str Spasi
ElseIf Microsoft.VisualBasic.Left(Str, 2) >= _
"30" And Microsoft.VisualBasic.Left(Str, 2) <= "39" Then
Pengurang = 30
strCS = "1E " '& Str Angka Else
strCS = "1F " End If
strCSS = Integer.Parse(Str, _
Globalization.NumberStyles.HexNumber) - _
Integer.Parse(Pengurang, _
Globalization.NumberStyles.HexNumber) ListBox3.Items.Add(Hex(strCSS))
strCS = "" Else
strCS2 = ""
ListBox3.Items.Add("1D")
'ListBox3.Items.Add("---")
End If
Next
ListBox3.Items.Add("1F") i = 0
CMD = New OleDbCommand("Select * from Data", Conn)
RD = CMD.ExecuteReader() ListBox1.Items.Clear() While RD.Read
ListBox1.Items.Add(RD.Item("Data")) End While
Dim PlainText As String = TextBox1.Text
Dim PlainTextByteArray(PlainText.Length) As Byte
For i = 0 To (PlainText.Length - 1) PlainTextByteArray(i) = _
Application.DoEvents() Next
Dim WAVAndText(WAVBytes + PlainText.Length + _ SentinelString.Length) As Byte
For t As Long = 0 To (WAVBytes - 1) WAVAndText(t) = WAVByteArray(t) Next
Dim WAVAndText1(WAVBytes + SentinelString.Length) _
As Byte
For t As Long = 0 To (WAVBytes - 1) WAVAndText1(t) = WAVByteArray(t) JumSampel1 = JumSampel1 + 1 Next
Dim count As Integer = 0
For r As Long = WAVBytes To (WAVBytes + _ (SentinelString.Length) - 1)
WAVAndText(r) = SentinelString(count) count += 1
Next
count = 0
For q As Long = (WAVBytes + SentinelString.Length) _
To (WAVBytes + SentinelString.Length + _ PlainText.Length - 1)
WAVAndText(q) = PlainTextByteArray(count) count += 1
Next
lblJumSampel1.Text = JumSampel1 BitSampel1 = JumSampel1 * 8
lblTotBitSampel1.Text = BitSampel1
CMD = New OleDbCommand("Select * from DataMLSB _ order by IDData desc", Conn)
RD = CMD.ExecuteReader() RD.Read()
If RD.HasRows = True Then
IDData = RD.Item("IDData") + 1 Else
IDData = 1 End If
RD.Close() CMD.Dispose()
NewFileName = Application.StartupPath & _
"\StegoAudioMLSB\StegoMLSB" & IDData & ".wav" My.Computer.FileSystem.WriteAllBytes(NewFileName, _
WAVAndText, False)
lblNmStego.Text = NewFileName cmdSave.Enabled = True
cmdSave.Focus() Else
End If
'Ekstraksi MLSB
ElseIf RadioButton2.Checked Then TextBox1.Clear()
Dim OutterSearch, InnerSearch, StopSearch As Boolean OutterSearch = True
InnerSearch = True StopSearch = False Dim count As Long = 0 Dim leftCounter As Long Dim rightCounter As Integer leftCounter = 0
rightCounter = 0
Do While (count < (WAVBytes - SentinelString.Length) And _
StopSearch = False)
If (WAVByteArray(count) = SentinelString(0)) Then leftCounter = count + 1
rightCounter = 1 InnerSearch = True
Do While (InnerSearch = True) And (rightCounter_
< SentinelString.Length) _
And (leftCounter < WAVByteArray.Length) If (WAVByteArray(leftCounter) = _
SentinelString(rightCounter)) Then rightCounter += 1
leftCounter += 1 If (rightCounter = (SentinelString.Length_
- 1)) Then
StopSearch = True End If
Else
InnerSearch = False count += 1
End If Loop
Else
count += 1 End If
Loop
If StopSearch = True Then
Do While (leftCounter < WAVBytes)
TextBox1.AppendText(ChrW(CInt(WAVByteArray(leftCounter))) )
PesanEmbed = _
(ChrW(CInt(WAVByteArray(leftCounter)))) leftCounter += 1
Loop
LenPesan = Len(TextBox1.Text) Dim strEmbed As String
'Ekstraksi
For i = 1 To LenPesan Dim bitKey As New ASCIItoBIN(Mid(TextBox1.Text, i,_
1))
ListBox1.Items.Add(bitKey.convertASCIItoBIN) strEmbed = TextBox1.Text
If Microsoft.VisualBasic.Left(strEmbed1B, 2) _
= "1B" Then AddEmbed = 60 bol1B = True End If
If Microsoft.VisualBasic.Left(strEmbed1C, 2)_ = "1C" Then
AddEmbed = 40 bol1C = True End If
If Microsoft.VisualBasic.Left(strEmbed1E, 2) _
= "1E" Then AddEmbed = 30 bol1E = True End If
If Microsoft.VisualBasic.Left(strEmbed1D, 2) _
= "1D" Then bol1D = True strEmbed = " " Else
Exit For End If
Next
If bol1B = True Then If bol1C = True Then If bol1E = True Then If bol1D = True Then
TextBox1.Enabled = True MsgBox("Ekstraksi Berhasil") Else
TextBox1.Text = "Pesan tidak ada" End If
Else
TextBox1.Text = "Pesan tidak ada" End If
Else
TextBox1.Text = "Pesan tidak ada" End If
Else
TextBox1.Text = "Pesan tidak ada" End If
Else
Else
MsgBox("Pilih Proses ...") End If
End If End Sub
Private Sub cmdKeluar_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdKeluar.Click
Close() End Sub
Private Sub cmdBersih_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles cmdBersih.Click
TextBox2.Text = "" TextBox1.Text = "" TextBox3.Text = "" TextBox4.Text = "" ListBox1.Items.Clear() ListBox2.Items.Clear() ListBox3.Items.Clear() lblSize.Text = "" lblNmStego.Text = "" lblJumSampel1.Text = "" lblTotBitSampel1.Text = "" lblSize2.Text = ""
lblJumSampel2.Text = "" lblTotBitSampel2.Text = "" lblSNR.Text = ""
lblFilePesan.Text = "" SNR = 0
JumSampel1 = 0 JumSampel2 = 0 BitSampel1 = 0 BitSampel2 = 0 Call Mate()
cmdBuka.Enabled = True End Sub
Sub Mate()
TextBox2.Enabled = False TextBox1.Enabled = False TextBox3.Enabled = False cmdProses.Enabled = False cmdSave.Enabled = False End Sub
Private Sub TextBox1_TextChanged(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles TextBox1.TextChanged
If RadioButton1.Checked = True Then cmdProses.Enabled = True
End If End Sub
Private Sub frmStego_Load(ByVal sender As System.Object, ByVal e_ As System.EventArgs) Handles MyBase.Load
Call Mate() Call KoneKsi()
CMD = New OleDbCommand("Delete from Data", Conn) RD = CMD.ExecuteReader()
CMD.Dispose()
CMD = New OleDbCommand("Delete from Data2", Conn) RD = CMD.ExecuteReader()
RD.Close() CMD.Dispose()
cmdProses.Enabled = False cmdFilePesan.Enabled = False End Sub
Private Sub cmdSave_Click(ByVal sender As System.Object, ByVal e _
As System.EventArgs) Handles cmdSave.Click cmdSave.Enabled = False
If RadioButton1.Checked = True Then
WAVBuffer1 = New System.IO.FileInfo(NewFileName) lblNmStego.Text = NewFileName
Dim fileDetails1 As System.IO.FileInfo = New _ System.IO.FileInfo(lblNmStego.Text)
lblSize2.Text = fileDetails1.Length.ToString
CMD = New OleDbCommand("Insert into DataMLSB (IDData) _ values (" & IDData & ")", Conn)
IDData = 0
RD = CMD.ExecuteReader() RD.Close()
CMD.Dispose()
Dim Ready As Boolean = True
Dim WAVFileStream1 As System.IO.FileStream Try
WAVFileStream1 = WAVBuffer1.OpenRead Catch ex As Exception
Ready = False
MsgBox("Baca File Wav", MsgBoxStyle.Critical, "Error")
End Try
Dim WAVBytes1 As Long = WAVFileStream1.Length Dim WAVExt1 As String = WAVBuffer1.Extension Dim WAVByteArray1(WAVBytes1) As Byte
WAVFileStream1.Read(WAVByteArray1, 0, WAVBytes1) 'Penyisipan bit
For t As Long = 0 To (WAVBytes1 - 1) Application.DoEvents()
JumSampel2 = JumSampel2 + 1 Next
Dim jumHexPesan As Integer Dim jumBitPesan As Integer
For i = 0 To ListBox3.Items.Count - 1 jumHexPesan = jumHexPesan + 1 Next
jumBitPesan = jumHexPesan * 5 lblJumSampel2.Text = JumSampel1 BitSampel2 = JumSampel2 * 8
lblTotBitSampel2.Text = BitSampel1
Dim BitBerubah As Integer = jumBitPesan
SNR = ((BitSampel1 - BitBerubah) / BitSampel1) * 100 lblSNR.Text = Format(SNR, "##.#####") & " %"
End If End Sub
Private Sub cmdFilePesan_Click(ByVal sender As System.Object, _ ByVal e As System.EventArgs) Handles cmdFilePesan.Click
OpenFileDialog1.Filter = "|*.txt" OpenFileDialog1.Title = "File Pesan" OpenFileDialog1.ShowDialog()
End Sub
Private Sub OpenFileDialog1_FileOk(ByVal sender As System.Object, _
ByVal e As System.ComponentModel.CancelEventArgs) Handles _ OpenFileDialog1.FileOk
filePesan = OpenFileDialog1.FileName
lblFilePesan.Text = filePesan 'OpenFileDialog1.FileName Dim fileDetailsPesan As System.IO.FileInfo = New _
System.IO.FileInfo(filePesan)
Dim SizePesan As Single = fileDetailsPesan.Length.ToString If filePesan = "" Then MsgBox("Pesan tidak ada", , _
"ERR") : Exit Sub
Dim pdllAF As New AdvanceFunction
pdllAF.ReadFromFile(filePesan, TextBox1) cmdProses.Enabled = True
LenPesan = Len(TextBox1.Text) jumBitPesan = LenPesan * 5
End Sub
Sub CnvBITS()
BitSampel2 = 0.85 * BitSampel2 End Sub
Private Sub RadioButton2_Click(ByVal sender As Object, ByVal e As _
System.EventArgs) Handles RadioButton2.Click GroupBox3.Visible = False
End Sub
Private Sub RadioButton1_CheckedChanged(ByVal sender As System.Object,_
ByVal e As System.EventArgs) Handles RadioButton1.CheckedChanged
GroupBox3.Visible = True End Sub
End Class
4. Module ASCII2BIN
Imports System.Text
Imports System.Data.OleDb Public Class ASCIItoBIN Dim jumBit As Integer Dim jumByte As Integer Private ASCIIstr As String
End Sub
Public Function convertASCIItoBIN() As String Dim ASCII_DECcode As String
Dim DECnum As Double
Dim counter As Integer = 0I Dim BINstr As String = "" Dim BINmessage As String jumByte = 0
jumBit = 0
Dim ASCIIencode As New ASCIIEncoding
For counter1 As Integer = 0 To ASCIIstr.Length - 1 Dim encodedBytes As Byte() = _
ASCIIencode.GetBytes(ASCIIstr.Substring(counter1, 1)) ASCII_DECcode += CStr(encodedBytes(0)) + " "
Next
Dim stringCounter As Integer = 0I
For counter2 As Integer = stringCounter To ASCII_DECcode.Length - 1
Dim DECnumAsString As String
While ASCII_DECcode.Substring(counter2, 1) <> " "
DECnumAsString += ASCII_DECcode.Substring(counter2, 1)
DECnum = CInt(DECnumAsString) counter2 += 1
End While
While DECnum > 0
If counter = 4 Then counter = 0 End If
DECnum = DECnum / 2
If Int(DECnum) = DECnum Then BINstr = "0" & BINstr counter = counter + 1 Else
BINstr = "1" & BINstr counter = counter + 1 End If
DECnum = Int(DECnum) End While
Select Case counter Case 1
BINstr = "000" & BINstr Case 2
BINstr = "00" & BINstr Case 3
BINstr = "0" & BINstr Case Else
BINstr = "0000" + BINstr End Select
BINmessage = BINmessage & BINstr & " " DECnumAsString = Nothing
jumBit = jumByte * 8
BINmessage = BINmessage.Remove(BINmessage.Length - 1, 1) Return BINmessage
End Function
Function ASC2HEX(ByVal StrName As String) As String Dim loopCount As Integer, strHold As String For loopCount = 1 To Len(StrName)
strHold = strHold & " " & Hex(Asc(Mid(StrName, loopCount, 1)))
frmStegoMLSB.ListBox2.Items.Add(Hex(Asc(Mid(StrName, _ loopCount, 1))))
Next loopCount ASC2HEX = strHold End Function
End Class
5. Module APP
Imports System.Data.OleDb Module ModAPP1
Public CMD As OleDbCommand = Nothing Public RD As OleDbDataReader = Nothing Public strConn As String
Public Conn As OleDbConnection Public bolLogin As Boolean Public bolTambah As Boolean Public bolCari As Boolean
Public X As String, Y As String Public strProses As String
Public myProcess As New Process() Public maxSampel As Single = 255 Public maxSampel1 As Single = 326 Public Sub KoneKsi()
strConn = ("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" & _
Application.StartupPath & "\dbStegano.mdb") Conn = New OleDbConnection(strConn)
If Conn.State = ConnectionState.Closed Then Conn.Open()
End If End Sub
Sub Main()
Dim arr(5) As Integer Dim i As Integer
For i = 0 To arr.GetUpperBound(0) arr(i) = i * i
Next i
For i = 0 To arr.GetUpperBound(0)
Console.WriteLine("arr(" & i & ") = " & arr(i)) Next i
End Sub
Public Function Embeded(ByVal Key1 As String, ByVal txtcode As String)
Dim i, j, k As Integer, thekey Dim a, b, CryptText As String On Error Resume Next
i = 0
For j = 1 To Len(txtcode) i = i + 1
If i > Len(thekey) Then i = 1 a = Mid(txtcode, j, 1)
k = Asc(a)
b = Mid(thekey, i, 1) k = k + Asc(b)
If k > maxSampel1 Then k = k - maxSampel1 CryptText = CryptText & Chr(k)
Next j
txtcode = CryptText Embeded = txtcode End If
End Function
Public Function Extract(ByVal Key1 As String, ByVal txtcode As String)
Dim i, j, k As Integer, thekey Dim a, b, CryptText As String On Error Resume Next
CryptText = "" If Key1 <> "" Then thekey = Key1 i = 0
For j = 1 To Len(txtcode) i = i + 1
If i > Len(thekey) Then i = 1 a = Mid(txtcode, j, 1)
k = Asc(a)
b = Mid(thekey, i, 1) k = k - Asc(b)
If k < 0 Then k = k + maxSampel1 CryptText = CryptText & Chr(k) Next j
txtcode = CryptText Extract = txtcode End If
End Function
