private void loadWavFile_Click(object sender, EventArgs e)
{
DialogResult res = loadWav.ShowDialog();
if (res == System.Windows.Forms.DialogResult.OK)
{
audio = File.ReadAllBytes(loadWav.FileName);
WavAudio wav = new WavAudio(audio);
if (wav.data != null)
{
OutputConsole.Write(string.Format("Audio loaded \nSamples found: {0}", wav.totalSamples));
OutputConsole.Write(string.Format("Maximum file size for this file = {0} - (file size digits + file name character count) bytes", FileSizeFormatProvider.GetFileSize(wav.bytesAvailable)));
currentMode = Mode.Audio;
if (image != null)
{
image.Dispose();
}
image = null;
imageBox.Image = null;
audioLabel.Text = string.Format("Using Wav File: {0}", loadWav.SafeFileName);
audioLabel.Visible = true;
}
else
{
audio = null;
}
}
}
public static byte[] EncryptTextLinear(byte[] wav, string text)
{
WavAudio audio = new WavAudio(wav);
uint value = 0;
string pass = string.Format(audio.bitsPerSample.ToString());
AESEncrypt encrypt = new AESEncrypt();
string encrypted = encrypt.EncryptString(text, pass);
OutputConsole.Write(string.Format("Text encrypted \n{0}", encrypted));
if (encrypted.Length <= Math.Floor((double)(audio.totalSamples / 8)))
{
uint n = 0;
OutputConsole.Write("Seed generated");
OutputConsole.Write("Processing wav file...");
for (int i = 0; i < encrypted.Length; i++)
{
value = encrypted[i];
for (int x = 0; x < 8; x++)
{
uint sample = n;
uint sampleValue = audio.samples[sample];
sampleValue = (sampleValue & 0xFFFFFFFE) | ((value >> x) & 1);
audio.samples[sample] = sampleValue;
n++;
}
}
value = 0;
for (int x = 0; x < 8; x++)
{
uint sample = n;
uint sampleValue = audio.samples[sample];
sampleValue = (sampleValue & 0xFFFFFFFE) | ((value >> x) & 1);
audio.samples[sample] = sampleValue;
n++;
}
audio.Save();
OutputConsole.Write(string.Format("Text encrypted... used {0} samples", encrypted.Length * 8));
OutputConsole.Write("Saving wav file");
return(audio.data);
}
else
{
return(null);
}
}
public static string DecryptTextLinear(byte[] wav)
{
WavAudio audio = new WavAudio(wav);
string text = string.Empty;
uint n = 0;
uint value = 0;
string pass = string.Format(audio.bitsPerSample.ToString());
AESEncrypt encrypt = new AESEncrypt();
OutputConsole.Write("Processing wav file...");
do
{
value = 0;
for (int x = 0; x < 8; x++)
{
uint sample = n;
uint sampleValue = audio.samples[sample];
value = value | ((sampleValue & 1) << x);
n++;
}
if (value != 0)
{
text += Convert.ToChar(value);
}
} while (value != 0);
OutputConsole.Write("Decrypting text...");
try
{
return(encrypt.DecryptString(text, pass));
}
catch (Exception e)
{
OutputConsole.Write("Error: Text not found");
Console.WriteLine(e.Message);
return(null);
}
}
public static HiddenFile DecryptFile2(byte[] wav)
{
try
{
WavAudio audio = new WavAudio(wav);
string text = string.Empty;
SeedURNG generator = new SeedURNG(audio.totalSamples, audio.totalSamples, true);
OutputConsole.Write("Seed generated");
OutputConsole.Write("Processing wav file...");
OutputConsole.Write("Reading metadata...");
uint value = 0;
do
{
value = 0;
for (int x = 0; x < 8; x++)
{
uint sample = generator.NextN;
uint sampleValue = audio.samples[sample];
value = value | ((sampleValue & 1) << x);
}
if (value != '#')
text += Convert.ToChar(value);
} while (value != '#' && char.IsNumber((char)value));
int filesize = int.Parse(text);
OutputConsole.Write(string.Format("Extracted file size: {0} bytes", filesize));
text = string.Empty;
do
{
value = 0;
for (int x = 0; x < 8; x++)
{
uint sample = generator.NextN;
uint sampleValue = audio.samples[sample];
value = value | ((sampleValue & 1) << x);
}
if (value != 0)
text += Convert.ToChar(value);
} while (value != 0);
string filename = text;
OutputConsole.Write(string.Format("Extracted file name: {0}", filename));
byte[] file = new byte[filesize];
for (int i = 0; i < filesize; i++)
{
value = 0;
for (int x = 0; x < 8; x++)
{
uint sample = generator.NextN;
uint sampleValue = audio.samples[sample];
value = value | ((sampleValue & 1) << x);
}
file[i] = (byte)value;
}
OutputConsole.Write(string.Format("Extracted file content"));
HiddenFile f = new HiddenFile(file, filename);
OutputConsole.Write("Ciphering file...");
f.cipherFile((int)audio.totalSamples);
return f;
}
catch (Exception e)
{
return null;
}
}
public static byte[] EncryptTextLinear(byte[] wav, string text)
{
WavAudio audio = new WavAudio(wav);
uint value = 0;
string pass = string.Format(audio.bitsPerSample.ToString());
AESEncrypt encrypt = new AESEncrypt();
string encrypted = encrypt.EncryptString(text, pass);
OutputConsole.Write(string.Format("Text encrypted \n{0}", encrypted));
if (encrypted.Length <= Math.Floor((double)(audio.totalSamples / 8)))
{
uint n = 0;
OutputConsole.Write("Seed generated");
OutputConsole.Write("Processing wav file...");
for (int i = 0; i < encrypted.Length; i++)
{
value = encrypted[i];
for (int x = 0; x < 8; x++)
{
uint sample = n;
uint sampleValue = audio.samples[sample];
sampleValue = (sampleValue & 0xFFFFFFFE) | ((value >> x) & 1);
audio.samples[sample] = sampleValue;
n++;
}
}
value = 0;
for (int x = 0; x < 8; x++)
{
uint sample = n;
uint sampleValue = audio.samples[sample];
sampleValue = (sampleValue & 0xFFFFFFFE) | ((value >> x) & 1);
audio.samples[sample] = sampleValue;
n++;
}
audio.Save();
OutputConsole.Write(string.Format("Text encrypted... used {0} samples", encrypted.Length * 8));
OutputConsole.Write("Saving wav file");
return audio.data;
}
else
{
return null;
}
}
public static byte[] EncryptFileLinear(byte[] wav, byte[] file, string filename)
{
WavAudio audio = new WavAudio(wav);
uint value = 0;
int extraBytes = 2 + filename.Length + file.Length.ToString().Length;
HiddenFile f = new HiddenFile(file, filename);
OutputConsole.Write(string.Format("File size: {0} bytes", file.Length));
f.cipherFile((int)audio.totalSamples);
if (file.Length <= Math.Floor((double)(audio.totalSamples / 8)) - extraBytes)
{
uint n = 0;
OutputConsole.Write("Ciphering file");
OutputConsole.Write("Processing wav file...");
OutputConsole.Write("Writing metadata...");
//Write file size
for (int i = 0; i < file.Length.ToString().Length; i++)
{
value = file.Length.ToString()[i];
for (int x = 0; x < 8; x++)
{
uint sample = n;
uint sampleValue = audio.samples[sample];
sampleValue = (sampleValue & 0xFFFFFFFE) | ((value >> x) & 1);
audio.samples[sample] = sampleValue;
n++;
}
}
value = '#';
for (int x = 0; x < 8; x++)
{
uint sample = n;
uint sampleValue = audio.samples[sample];
sampleValue = (sampleValue & 0xFFFFFFFE) | ((value >> x) & 1);
audio.samples[sample] = sampleValue;
n++;
}
//Write file name
for (int i = 0; i < filename.Length; i++)
{
value = filename[i];
for (int x = 0; x < 8; x++)
{
uint sample = n;
uint sampleValue = audio.samples[sample];
sampleValue = (sampleValue & 0xFFFFFFFE) | ((value >> x) & 1);
audio.samples[sample] = sampleValue;
n++;
}
}
value = 0;
for (int x = 0; x < 8; x++)
{
uint sample = n;
uint sampleValue = audio.samples[sample];
sampleValue = (sampleValue & 0xFFFFFFFE) | ((value >> x) & 1);
audio.samples[sample] = sampleValue;
n++;
}
//Write file content
OutputConsole.Write("Writing file data...");
for (int i = 0; i < file.Length; i++)
{
value = f.file[i];
for (int x = 0; x < 8; x++)
{
uint sample = n;
uint sampleValue = audio.samples[sample];
sampleValue = (sampleValue & 0xFFFFFFFE) | ((value >> x) & 1);
audio.samples[sample] = sampleValue;
n++;
}
}
}
else
{
OutputConsole.Write("Error");
return null;
}
OutputConsole.Write("Finished embedding file");
OutputConsole.Write(string.Format("Used {0} samples", (file.Length + extraBytes) * 8));
audio.Save();
return audio.data;
}
public static string DecryptTextLinear(byte[] wav)
{
WavAudio audio = new WavAudio(wav);
string text = string.Empty;
uint n = 0;
uint value = 0;
string pass = string.Format(audio.bitsPerSample.ToString());
AESEncrypt encrypt = new AESEncrypt();
OutputConsole.Write("Processing wav file...");
do
{
value = 0;
for (int x = 0; x < 8; x++)
{
uint sample = n;
uint sampleValue = audio.samples[sample];
value = value | ((sampleValue & 1) << x);
n++;
}
if (value != 0)
text += Convert.ToChar(value);
} while (value != 0);
OutputConsole.Write("Decrypting text...");
try
{
return encrypt.DecryptString(text, pass);
}
catch (Exception e)
{
OutputConsole.Write("Error: Text not found");
Console.WriteLine(e.Message);
return null;
}
}
private void loadWavFile_Click(object sender, EventArgs e)
{
DialogResult res = loadWav.ShowDialog();
if (res == System.Windows.Forms.DialogResult.OK)
{
audio = File.ReadAllBytes(loadWav.FileName);
WavAudio wav = new WavAudio(audio);
if (wav.data != null)
{
OutputConsole.Write(string.Format("Audio loaded \nSamples found: {0}", wav.totalSamples));
OutputConsole.Write(string.Format("Maximum file size for this file = {0} - (file size digits + file name character count) bytes", FileSizeFormatProvider.GetFileSize(wav.bytesAvailable)));
currentMode = Mode.Audio;
if (image != null)
{
image.Dispose();
}
image = null;
imageBox.Image = null;
audioLabel.Text = string.Format("Using Wav File: {0}", loadWav.SafeFileName);
audioLabel.Visible = true;
}
else
{
audio = null;
}
}
}
public static HiddenFile DecryptFile2(byte[] wav)
{
try
{
WavAudio audio = new WavAudio(wav);
string text = string.Empty;
SeedURNG generator = new SeedURNG(audio.totalSamples, audio.totalSamples, true);
OutputConsole.Write("Seed generated");
OutputConsole.Write("Processing wav file...");
OutputConsole.Write("Reading metadata...");
uint value = 0;
do
{
value = 0;
for (int x = 0; x < 8; x++)
{
uint sample = generator.NextN;
uint sampleValue = audio.samples[sample];
value = value | ((sampleValue & 1) << x);
}
if (value != '#')
{
text += Convert.ToChar(value);
}
} while (value != '#' && char.IsNumber((char)value));
int filesize = int.Parse(text);
OutputConsole.Write(string.Format("Extracted file size: {0} bytes", filesize));
text = string.Empty;
do
{
value = 0;
for (int x = 0; x < 8; x++)
{
uint sample = generator.NextN;
uint sampleValue = audio.samples[sample];
value = value | ((sampleValue & 1) << x);
}
if (value != 0)
{
text += Convert.ToChar(value);
}
} while (value != 0);
string filename = text;
OutputConsole.Write(string.Format("Extracted file name: {0}", filename));
byte[] file = new byte[filesize];
for (int i = 0; i < filesize; i++)
{
value = 0;
for (int x = 0; x < 8; x++)
{
uint sample = generator.NextN;
uint sampleValue = audio.samples[sample];
value = value | ((sampleValue & 1) << x);
}
file[i] = (byte)value;
}
OutputConsole.Write(string.Format("Extracted file content"));
HiddenFile f = new HiddenFile(file, filename);
OutputConsole.Write("Ciphering file...");
f.cipherFile((int)audio.totalSamples);
return(f);
}
catch (Exception e)
{
return(null);
}
}
public static byte[] EncryptFile2(byte[] wav, byte[] file, string filename)
{
WavAudio audio = new WavAudio(wav);
uint value = 0;
int extraBytes = 2 + filename.Length + file.Length.ToString().Length;
HiddenFile f = new HiddenFile(file, filename);
OutputConsole.Write(string.Format("File size: {0} bytes", file.Length));
f.cipherFile((int)audio.totalSamples);
if (file.Length <= Math.Floor((double)(audio.totalSamples / 8)) - extraBytes)
{
SeedURNG generator = new SeedURNG(audio.totalSamples, audio.totalSamples, true);
OutputConsole.Write("Seed generated");
OutputConsole.Write("Ciphering file");
OutputConsole.Write("Processing wav file...");
OutputConsole.Write("Writing metadata...");
//Write file size
for (int i = 0; i < file.Length.ToString().Length; i++)
{
value = file.Length.ToString()[i];
for (int x = 0; x < 8; x++)
{
uint sample = generator.NextN;
uint sampleValue = audio.samples[sample];
sampleValue = (sampleValue & 0xFFFFFFFE) | ((value >> x) & 1);
audio.samples[sample] = sampleValue;
}
}
value = '#';
for (int x = 0; x < 8; x++)
{
uint sample = generator.NextN;
uint sampleValue = audio.samples[sample];
sampleValue = (sampleValue & 0xFFFFFFFE) | ((value >> x) & 1);
audio.samples[sample] = sampleValue;
}
//Write file name
for (int i = 0; i < filename.Length; i++)
{
value = filename[i];
for (int x = 0; x < 8; x++)
{
uint sample = generator.NextN;
uint sampleValue = audio.samples[sample];
sampleValue = (sampleValue & 0xFFFFFFFE) | ((value >> x) & 1);
audio.samples[sample] = sampleValue;
}
}
value = 0;
for (int x = 0; x < 8; x++)
{
uint sample = generator.NextN;
uint sampleValue = audio.samples[sample];
sampleValue = (sampleValue & 0xFFFFFFFE) | ((value >> x) & 1);
audio.samples[sample] = sampleValue;
}
//Write file content
OutputConsole.Write("Writing file data...");
for (int i = 0; i < file.Length; i++)
{
value = f.file[i];
for (int x = 0; x < 8; x++)
{
uint sample = generator.NextN;
uint sampleValue = audio.samples[sample];
sampleValue = (sampleValue & 0xFFFFFFFE) | ((value >> x) & 1);
audio.samples[sample] = sampleValue;
}
}
}
else
{
OutputConsole.Write("Error");
return(null);
}
OutputConsole.Write("Finished embedding file");
OutputConsole.Write(string.Format("Used {0} samples", (file.Length + extraBytes) * 8));
audio.Save();
return(audio.data);
}
