public void MovTestLsb()
{
AesAlgo aesAlgo = new AesAlgo();
using (AesManaged aes = new AesManaged())
{
aes.KeySize = 128;
aes.Padding = PaddingMode.PKCS7;
var path = @"C:/Users/mamis/Desktop/sample.mov";
FileStream file = File.OpenRead(path);
byte[] byteVideo = File.ReadAllBytes(path);
string message = "Im the GOATTTT!!";
byte[] encryptedData = aesAlgo.EncryptStringToBytes_Aes(message, aes.Key, aes.IV).Concat(aes.Key).Concat(aes.IV).ToArray();
var binMessage = _decoder.EncryptedByteArrayToBinary(encryptedData);
_lsbVideo.HideMov(byteVideo, binMessage);
byte[] cypherData = _lsbVideo.SeekMov(byteVideo);
byte[] key = _lsbVideo.ExtractKeyMov(byteVideo);
byte[] iv = _lsbVideo.ExtractIvMov(byteVideo);
var decryptedMessage = aesAlgo.DecryptStringFromBytes_Aes(cypherData, key, iv);
Console.WriteLine("Secret Massage Is: \n" + decryptedMessage);
File.WriteAllBytes("C:/Users/mamis/Desktop/outputTest.mov", byteVideo);
}
}
public void PETestLsb()
{
AesAlgo aesAlgo = new AesAlgo();
using (AesManaged aes = new AesManaged())
{
aes.KeySize = 128;
aes.Padding = PaddingMode.PKCS7;
var path = @"C:\testfolder\exetest.exe";
//FileStream file = File.OpenRead(path);
byte[] byteAudio = File.ReadAllBytes(path);
string message = "TEST lsb aes";
byte[] encryptedMessage = aesAlgo.EncryptStringToBytes_Aes(message, aes.Key, aes.IV).Concat(aes.Key)
.Concat(aes.IV).ToArray();
var binMessage = _decoder.EncryptedByteArrayToBinary(encryptedMessage);
_lsbPe.HidePE(byteAudio, binMessage);
byte[] cypherData = _lsbPe.SeekPE(byteAudio);
byte[] key = _lsbPe.ExtractKeyPE(byteAudio);
byte[] iv = _lsbPe.ExtractIvPE(byteAudio);
var decryptedMessage = aesAlgo.DecryptStringFromBytes_Aes(cypherData, key, iv);
Console.WriteLine("Secret Massage Is: \n" + decryptedMessage);
File.WriteAllBytes("C:/Users/Mike/Desktop/pruducta/file_example_WAV_1MG - Copy.wav", byteAudio);
}
}
public void Mp3TestLsb()
{
AesAlgo aesAlgo = new AesAlgo();
using (AesManaged aes = new AesManaged())
{
aes.KeySize = 128;
aes.Padding = PaddingMode.PKCS7;
var path = @"C:/Users/Mike/Desktop/pruducta/file_example_MP3_2MG - Copy.mp3";
byte[] byteAudio = File.ReadAllBytes(path);
string message = "tmkescht";
byte[] encryptedMessage = aesAlgo.EncryptStringToBytes_Aes(message, aes.Key, aes.IV).Concat(aes.Key)
.Concat(aes.IV).ToArray();
//var binMessage = _decoder.EncryptedByteArrayToBinary(encryptedMessage);
//byteAudio = _metaDataAudio.GenerateJunk(byteAudio);
byteAudio = _metaDataAudio.GenerateFramesMp3(byteAudio);
_metaDataAudio.HideMp3(byteAudio, encryptedMessage);
byte[] cypherData = _metaDataAudio.SeekMp3(byteAudio);
byte[] key = _metaDataAudio.ExtractKeyMp3(byteAudio);
byte[] iv = _metaDataAudio.ExtractIvMp3(byteAudio);
// byteAudio = _lsbAudio.GenerateFrames(byteAudio);
// _lsbAudio.HideMp3(byteAudio, binMessage);
//
// byte[] cypherData = _lsbAudio.SeekMp3(byteAudio);
// byte[] key = _lsbAudio.ExtractKeyMp3(byteAudio);
// byte[] iv = _lsbAudio.ExtractIvMp3(byteAudio);
var decryptedMessage = aesAlgo.DecryptStringFromBytes_Aes(cypherData, key, iv);
Console.WriteLine("Secret Massage Is: \n" + decryptedMessage);
File.WriteAllBytes("C:/Users/Mike/Desktop/pruducta/TEST.mp3", byteAudio);
}
}
public void bmpHide()
{
AesAlgo aesAlgo = new AesAlgo();
using (AesManaged aes = new AesManaged())
{
aes.KeySize = 128;
aes.Padding = PaddingMode.PKCS7;
var path = @"C:/Users/mamis/Desktop/pic.png";
var bmp = (Bitmap)Image.FromFile(path);
string message = "Lebron is the Goat Lebron is the Goat ";
byte[] encryptedData = aesAlgo.EncryptStringToBytes_Aes(message, aes.Key, aes.IV).Concat(aes.Key).Concat(aes.IV).ToArray();
var binMessage = _decoder.EncryptedByteArrayToBinary(encryptedData);
_lsbPicture.HideBitmap(bmp, binMessage);
byte[] cypherData = _lsbPicture.SeekBitmap(bmp);
byte[] key = _lsbPicture.ExtractKeyBitmap(bmp);
byte[] iv = _lsbPicture.ExtractIvBitmap(bmp);
var decryptedMessage = aesAlgo.DecryptStringFromBytes_Aes(cypherData, key, iv);
Console.WriteLine("Secret Massage Is: \n" + decryptedMessage);
bmp.Save("C:/Users/mamis/Desktop/pica1.jpg", ImageFormat.Tiff);
}
}
public string ExtractMessageFromVideo(FileDataUploadRequestModel fileData)
{
AesAlgo aesAlgo = new AesAlgo();
//byte[] video = new byte[fileData.FileAsHttpPostedFileBase.ContentLength];
//fileData.FileAsHttpPostedFileBase.InputStream.Read(video, 0, video.Length);
byte[] video = fileData.FileAsByteArray;
byte[] cypherData = null;
byte[] key = null;
byte[] iv = null;
string decryptedMessage = null;
switch (fileData.HidingMethod)
{
case HidingMethod.Lsb:
if (fileData.FileName.EndsWith(".avi"))
{
cypherData = _lsbVideo.SeekAvi(video);
key = _lsbVideo.ExtractKeyAvi(video);
iv = _lsbVideo.ExtractIvAvi(video);
}
else
{
cypherData = _lsbVideo.SeekMov(video);
key = _lsbVideo.ExtractKeyMov(video);
iv = _lsbVideo.ExtractIvMov(video);
}
break;
case HidingMethod.MetaData:
if (fileData.FileName.EndsWith(".avi"))
{
cypherData = _metaDataVideo.SeekAvi(video);
key = _metaDataVideo.ExtractKeyAvi(video);
iv = _metaDataVideo.ExtractIvAvi(video);
}
else
{
cypherData = _metaDataVideo.SeekMov(video);
key = _metaDataVideo.ExtractKeyMov(video);
iv = _metaDataVideo.ExtractIvMov(video);
}
break;
}
switch (fileData.EncryptionMethod)
{
case EncryptionMethod.Aes:
decryptedMessage = Decrypt_Aes(cypherData, key, iv);
break;
case EncryptionMethod.Serpent:
decryptedMessage = Decrypt_Serpent(cypherData, key);
break;
}
return(decryptedMessage);
}
public string ExtractMessageFromAudio(FileDataUploadRequestModel fileData)
{
AesAlgo aesAlgo = new AesAlgo();
byte[] audio = fileData.FileAsByteArray;
byte[] cypherData = null;
byte[] key = null;
byte[] iv = null;
string decryptedMessage = null;
switch (fileData.HidingMethod)
{
case HidingMethod.Lsb:
if (fileData.FileName.EndsWith(".wav"))
{
cypherData = _lsbAudio.SeekWave(audio);
key = _lsbAudio.ExtractKeyWave(audio);
iv = _lsbAudio.ExtractIvWave(audio);
}
else
{
cypherData = _lsbAudio.SeekMp3(audio);
key = _lsbAudio.ExtractKeyMp3(audio);
iv = _lsbAudio.ExtractIvMp3(audio);
}
break;
case HidingMethod.MetaData:
if (fileData.FileName.EndsWith(".wav"))
{
cypherData = _metaDataAudio.SeekWave(audio);
key = _metaDataAudio.ExtractKeyWave(audio);
iv = _metaDataAudio.ExtractIvWave(audio);
}
else
{
cypherData = _metaDataAudio.SeekMp3(audio);
key = _metaDataAudio.ExtractKeyMp3(audio);
iv = _metaDataAudio.ExtractIvMp3(audio);
}
break;
}
switch (fileData.EncryptionMethod)
{
case EncryptionMethod.Aes:
decryptedMessage = Decrypt_Aes(cypherData, key, iv);
break;
case EncryptionMethod.Serpent:
//decryptedMessage = Decrypt_Des(cypherData, key, iv);
decryptedMessage = Decrypt_Serpent(cypherData, key);
break;
}
return(decryptedMessage);
}
public byte[] Encrypt_Aes(string plainMessage)
{
AesAlgo aesAlgo = new AesAlgo();
using (AesManaged aes = new AesManaged())
{
aes.KeySize = 128;
aes.Padding = PaddingMode.PKCS7;
byte[] encryptedData = aesAlgo.EncryptStringToBytes_Aes(plainMessage, aes.Key, aes.IV).Concat(aes.Key)
.Concat(aes.IV).ToArray();
return(encryptedData);
}
}
public string ExtractMessageFromExe(FileDataUploadRequestModel fileData)
{
AesAlgo aesAlgo = new AesAlgo();
// var ms = new MemoryStream(fileData.File);
byte[] Exe = fileData.FileAsByteArray;
byte[] cypherData = null;
byte[] key = null;
byte[] iv = null;
string decryptedMessage = null;
switch (fileData.HidingMethod)
{
case HidingMethod.Lsb:
if (fileData.FileName.EndsWith(".exe"))
{
cypherData = _lsbExe.SeekPE(Exe);
key = _lsbExe.ExtractKeyPE(Exe);
iv = _lsbExe.ExtractIvPE(Exe);
}
break;
case HidingMethod.MetaData:
if (fileData.FileName.EndsWith(".exe"))
{
cypherData = _metaDataExe.SeekPE(Exe);
key = _metaDataExe.ExtractKeyPE(Exe);
iv = _metaDataExe.ExtractIvPE(Exe);
}
else if (fileData.FileName.EndsWith(".bat"))
{
cypherData = _metaDataExe.SeekBatch(Exe);
key = _metaDataExe.ExtractKeyBatch(Exe);
iv = _metaDataExe.ExtractIvBatch(Exe);
}
break;
}
switch (fileData.EncryptionMethod)
{
case EncryptionMethod.Aes:
decryptedMessage = Decrypt_Aes(cypherData, key, iv);
break;
case EncryptionMethod.Serpent:
decryptedMessage = Decrypt_Serpent(cypherData, key);
break;
}
return(decryptedMessage);
}
public void bmpSeek()
{
AesAlgo aesAlgo = new AesAlgo();
var path1 = "C:/Users/mamis/Desktop/pica1.jpg";
var bmp = (Bitmap)Image.FromFile(path1);
byte[] cypherData = _lsbPicture.SeekBitmap(bmp);
byte[] key = _lsbPicture.ExtractKeyBitmap(bmp);
byte[] iv = _lsbPicture.ExtractIvBitmap(bmp);
var decryptedMessage = aesAlgo.DecryptStringFromBytes_Aes(cypherData, key, iv);
Console.WriteLine("Secret Massage Is: \n" + decryptedMessage);
}
public void Given_ValidKeyAndBinaryData_When_EncryptAndDecrypt_Then_DecryptionIsSameResult(
[Values(192, 256)] int keySize)
{
// Arrange
const string strToTestWith = "string should be encrypted and come out the same after descryption";
var byteConverter = new UnicodeEncoding();
var strAsBytes = byteConverter.GetBytes(strToTestWith);
var algo = new AesAlgo();
// Act
var key = new AesKeyGenerator().GetNewKey(new AesKeyGenerationOptions()
{
NewKeyName = "my new aes key",
KeySize = keySize
});
var result = algo.Decrypt(algo.Encrypt(strAsBytes, key), key);
// Assert
byteConverter.GetString(result).Should().Be(strToTestWith);
}
public string ExtractMessageFromPicture(FileDataUploadRequestModel fileData)
{
AesAlgo aesAlgo = new AesAlgo();
var ms = new MemoryStream(fileData.FileAsByteArray);
var bmp = new Bitmap(ms);
byte[] cypherData = null;
byte[] key = null;
byte[] iv = null;
string decryptedMessage = null;
switch (fileData.HidingMethod)
{
case HidingMethod.Lsb:
cypherData = _lsbPicture.SeekBitmap(bmp);
key = _lsbPicture.ExtractKeyBitmap(bmp);
iv = _lsbPicture.ExtractIvBitmap(bmp);
break;
case HidingMethod.MetaData:
cypherData = _metaDataPicture.SeekJpeg(fileData.FileAsByteArray);
key = _metaDataPicture.ExtractKeyJpeg(fileData.FileAsByteArray);
iv = _metaDataPicture.ExtractIvJpeg(fileData.FileAsByteArray);
break;
}
switch (fileData.EncryptionMethod)
{
case EncryptionMethod.Aes:
decryptedMessage = Decrypt_Aes(cypherData, key, iv);
break;
case EncryptionMethod.Serpent:
decryptedMessage = Decrypt_Serpent(cypherData, key);
break;
}
return(decryptedMessage);
}
public void JpegHide()
{
AesAlgo aesAlgo = new AesAlgo();
using (AesManaged aes = new AesManaged())
{
aes.KeySize = 128;
aes.Padding = PaddingMode.PKCS7;
var path = @"C:/Users/mamis/Desktop/tif.tiff";
var path2 = @"C:/Users/mamis/Desktop/picOutput.tiff";
var jpeg = File.ReadAllBytes(path);
string message = "Lebron james is the greatest player of all times" +
"Lebron james is the greatest player of all times" +
"Lebron james is the greatest player of all times" +
"Lebron james is the greatest player of all times" +
"Lebron james is the greatest player of all times" +
"Lebron james is the greatest player of all times ";
byte[] encryptedData = aesAlgo.EncryptStringToBytes_Aes(message, aes.Key, aes.IV);
encryptedData = encryptedData
.Concat(aes.Key)
.Concat(aes.IV).ToArray();
jpeg = _metaDataPicture.HideJpeg(jpeg, encryptedData);
byte[] cypherData = _metaDataPicture.SeekJpeg(jpeg);
byte[] key = _metaDataPicture.ExtractKeyJpeg(jpeg);
byte[] iv = _metaDataPicture.ExtractIvJpeg(jpeg);
var decryptedMessage = aesAlgo.DecryptStringFromBytes_Aes(cypherData, key, iv);
Console.WriteLine("Secret Massage Is: \n" + decryptedMessage);
File.WriteAllBytes(path2, jpeg);
}
}
public void AviTestMetaData()
{
AesAlgo aesAlgo = new AesAlgo();
using (AesManaged aes = new AesManaged())
{
aes.KeySize = 128;
aes.Padding = PaddingMode.PKCS7;
var path = @"C:/Users/mamis/Desktop/sample.avi";
FileStream file = File.OpenRead(path);
byte[] byteVideo = File.ReadAllBytes(path);
string message = " the seven sees?? Lebron is the goat, It is well known all the seven sees." +
"the seven sees?? Lebron is the goat, It is well known all the seven sees" +
"the seven sees?? Lebron is the goat, It is well known all the seven sees" +
"the seven sees?? Lebron is the goat, It is well known all the seven sees" +
"the seven sees?? Lebron is the goat, It is well known all the seven sees??";
byte[] encryptedData = aesAlgo.EncryptStringToBytes_Aes(message, aes.Key, aes.IV).Concat(aes.Key).Concat(aes.IV)
.ToArray();
//byte[] b = encryptedData.Concat(aes.Key).ToArray();
_metaDataVideo.hideAvi(byteVideo, encryptedData);
byte[] cypherData = _metaDataVideo.SeekAvi(byteVideo);
byte[] key = _metaDataVideo.ExtractKeyAvi(byteVideo);
byte[] iv = _metaDataVideo.ExtractIvAvi(byteVideo);
var decryptedMessage = aesAlgo.DecryptStringFromBytes_Aes(cypherData, aes.Key, aes.IV);
Console.WriteLine("Secret Massage Is: \n" + decryptedMessage);
File.WriteAllBytes("C:/Users/mamis/Desktop/vidOutput.avi", byteVideo);
}
}
public string Decrypt_Aes(byte [] cypherData, byte[] key, byte[] iv)
{
AesAlgo aesAlgo = new AesAlgo();
return(aesAlgo.DecryptStringFromBytes_Aes(cypherData, key, iv));
}
