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[Vb.Net]Storing Data as Image[src]

nice work, looks good, probably wont use it myself, but seems like many others will
(Sep 3, 2010 08:09 PM)kobac Wrote:  Simple way to store data as real image :D

[img]http://img818.imageshack.us/img818/9107/imagecrypt.gif[/img]
[img]http://img130.imageshack.us/img130/5156/imagesha.png[/img]
Crypt:
Code
Function pixelator(ByVal a As String) As Image
  a = Convert.ToBase64String(New System.Text.UTF8Encoding().GetBytes(CompressString(a)))
  Dim imageholder As Bitmap
  Dim autosize As Integer = System.Math.Sqrt(a.Count) + 2
  imageholder = New Bitmap(autosize, autosize)
  Dim G As Graphics = Graphics.FromImage(imageholder)
  Dim fff As Integer = 0
  While fff <= a.Count - 1
    For Y = 1 To imageholder.Height - 1
    For X = 1 To imageholder.Width - 1
    If fff <= a.Count - 1 Then
    imageholder.SetPixel(X, Y, Color.FromArgb(Convert.ToInt32(a.Chars(fff)), 0, 0))
    fff = fff + 1
    End If
    Next X
    Next Y
  End While
  Return imageholder
DeCrypt:
Code
Function depixelator(ByVal a As Image) As String
  Dim retrievestr As String = ""
  Dim xmax As Integer
  Dim ymax As Integer
  xmax = a.Width - 1
  ymax = a.Height - 1
  For y = 1 To ymax
    For x = 1 To xmax
    With CType(a, Bitmap).GetPixel(x, y)
    retrievestr = retrievestr & Convert.ToChar(.R)
    End With
    Next x
  Next y
  retrievestr = New System.Text.UTF8Encoding().GetString(Convert.FromBase64String(retrievestr.Replace(Convert.ToChar(0), "")))
  retrievestr = DecompressString(retrievestr)
  Return retrievestr
    End Function
Needed Functions:
Code
Public Shared Function CompressString(ByVal text As String) As String
  Dim buffer__1 As Byte() = Encoding.UTF8.GetBytes(text)
  Dim memoryStream = New IO.MemoryStream()
  Using gZipStream = New IO.Compression.GZipStream(memoryStream, CompressionMode.Compress, True)
    gZipStream.Write(buffer__1, 0, buffer__1.Length)
  End Using
  memoryStream.Position = 0
  Dim compressedData = New Byte(memoryStream.Length - 1) {}
  memoryStream.Read(compressedData, 0, compressedData.Length)
  Dim gZipBuffer = New Byte(compressedData.Length + 3) {}
  Buffer.BlockCopy(compressedData, 0, gZipBuffer, 4, compressedData.Length)
  Buffer.BlockCopy(BitConverter.GetBytes(buffer__1.Length), 0, gZipBuffer, 0, 4)
  Return Convert.ToBase64String(gZipBuffer)
    End Function
    Public Shared Function DecompressString(ByVal compressedText As String) As String
  Dim gZipBuffer As Byte() = Convert.FromBase64String(compressedText)
  Using memoryStream = New IO.MemoryStream()
    Dim dataLength As Integer = BitConverter.ToInt32(gZipBuffer, 0)
    memoryStream.Write(gZipBuffer, 4, gZipBuffer.Length - 4)
    Dim buffer = New Byte(dataLength - 1) {}
    memoryStream.Position = 0
    Using gZipStream = New GZipStream(memoryStream, CompressionMode.Decompress)
    gZipStream.Read(buffer, 0, buffer.Length)
    End Using
    Return Encoding.UTF8.GetString(buffer)
  End Using
    End Function
Simple Usage:
Code
Crypt:  PictureBox1.Image = pixelator(RichTextBox1.Text)
DeCrypt:  RichTextBox1.Text = depixelator(PictureBox1.Image)
Source: http://www.mediafire.com/download.php?4bwdc49ib98nz59
Update: (using png image format, file can be uploaded to imageshack)
code(png):
Spoiler (Click to View)

what program did you use to make
animated GIF picture ?
@From KSA with lag Camtasia Studio
good one..

will be helpful..
I like this a lot, used something a long time ago to chat with my friends so no one can know what we were writing to each other. Nice times😁.
Spoiler (Click to View)
Thats so cool
Thanks for the share
Hey this is cool, thanks for the source.
is there a way you can add a password to this?
Like you need a password to unlock the picture?
this is so crazy! i just thoguth of this (kinda differnt way but still same concept) aye well nice job!
.-=~
Nice app, thank you!

toshort lol
thanks, it is very interesting.

Thanks for sharing
Trapt had a method of doing this he shared with me awhile back it is pretty nice.
Bitcoin Address: 1KQCBvevk1sA4wSj7gugv3sf5yjUygAzcv
Great job, Nice release. I'm going to use this. Keep up this kind of work. This is very useful for saving my hacked accounts.
Really nice bro :D im sure im gonna try this.
[Image: t1ms9.png]
Great!! This reminds me on Stenography, is it possible to store information in a already existing image?

Greetings L.L.
Hey THanX for this source !!


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