Encrypt/decrypt file (picture)

[mcerk]

OK, Id like to Encrypt pictures. I believe that I can Encrypt using the code below.
Of couse I can use any other code (if you can reach the same objective).

Private Shared Sub EncryptData(inName As String, outName As String, _
   tdesKey() As Byte, tdesIV() As Byte)
   
    Create the file streams to handle the input and output files.
    Dim fin As New FileStream(inName, FileMode.Open, FileAccess.Read)
    Dim fout As New FileStream(outName, FileMode.OpenOrCreate, _
       FileAccess.Write)
    fout.SetLength(0)
        
    Create variables to help with read and write.
    Dim bin(100) As Byte This is intermediate storage for the encryption.
    Dim rdlen As Long = 0 This is the total number of bytes written.
    Dim totlen As Long = fin.Length This is the total length of the input file.
    Dim len As Integer This is the number of bytes to be written at a time.
    Dim tdes As New TripleDESCryptoServiceProvider()
    Dim encStream As New CryptoStream(fout, _
       tdes.CreateEncryptor(tdesKey, tdesIV), CryptoStreamMode.Write)
        
    Console.WriteLine("Encrypting...")
        
    Read from the input file, then encrypt and write to the output file.
    While rdlen < totlen
        len = fin.Read(bin, 0, 100)
        encStream.Write(bin, 0, len)
        rdlen = rdlen + len
        Console.WriteLine("{0} bytes processed", rdlen)
    End While
        
    encStream.Close()
End Sub

But How Can I decrypt and then show picture in a picturebox? I do not want to save dectypted file on disk, Id only like to have it in RAM.

tx

matej