private void encryptBtn(object sender, RoutedEventArgs e)
{
OpenFileDialog dlg = new OpenFileDialog();
if (dlg.ShowDialog() == DialogResult.OK)
{
Controllers.KeyController kc = new Controllers.KeyController();
string fileName;
byte[] plainBytes;
fileName = dlg.FileName; //Will be useful in the future when selecting files
plainBytes = File.ReadAllBytes(@fileName);
Console.WriteLine("Getting bytes of file");
byte[] IV = File.ReadAllBytes(@"C:\\Users\\SengokuMedaru\\Desktop\\keys\\IV.txt");
Console.WriteLine("Getting bytes of IV");
byte[] encryptedSymmetricKey = File.ReadAllBytes(@"C:\\Users\\SengokuMedaru\\Desktop\\keys\\encryptedSymmetricKey.txt");
Console.WriteLine("Getting bytes of encrypted symmetric key");
//Gets the symmetric key by decrypting the encrypted symmetric key with the decryption (private) key
byte[] decryptedSymmetricKey = kc.asymmetricDecryption(encryptedSymmetricKey);
//Encrypts plaintext with symmetric key
byte[] cipherText = kc.symmetricEncryption(plainBytes, decryptedSymmetricKey, IV);
//For debugging purposes
fileName = System.IO.Path.GetFileNameWithoutExtension(fileName);
byte[] testOutput = cipherText;
System.IO.File.WriteAllBytes(@"C:\\Users\\SengokuMedaru\\Desktop\\EncryptedText\\encrypted_" + fileName, testOutput);
Console.WriteLine(fileName + " has successfully been encrypted!");
Console.WriteLine("");
}
}
private void uploadButton_Click(object sender, RoutedEventArgs e)
{
OpenFileDialog dlg = new OpenFileDialog();
if (dlg.ShowDialog() == DialogResult.OK)
{
Controllers.KeyController kc = new Controllers.KeyController();
string fileName;
fileName = dlg.FileName; //Will be useful in the future when selecting files
filename1 = fileName;
byte[] byteFormatOfFile = File.ReadAllBytes(@fileName);
//Hash Computation
SHA1CryptoServiceProvider sha1 = new SHA1CryptoServiceProvider();
byte[] byteComputedHash;
using (FileStream stream = File.OpenRead(fileName))
{
SHA1Managed sha = new SHA1Managed();
byteComputedHash = sha.ComputeHash(stream);
}
Controllers.HashController hashController = new Controllers.HashController();
stringComputedHash = hashController.HexStringFromBytes(byteComputedHash).ToUpper();
//Important line to ensure user inputted hash stays at no more than 40 chars
hash = stringUserHashInput(userHashInput);
Console.WriteLine(hash);
//Actions to take if hash not equals to computed hash
if (!(hash.Equals(stringComputedHash)))
{
//Do stuff:
//Stuff like an error message box pop up (done)
//Clear the userInputHash box (done)
//Break from the current method (done)
Controllers.Prompt.ShowDialog1("Hash does not match!", "Error");
userHashInput.Document.Blocks.Clear();
}
else
{
byte[] IV = System.IO.File.ReadAllBytes(@"C:\\Users\\SengokuMedaru\\Desktop\\keys\\IV.txt");
Console.WriteLine("Gets bytes of IV");
byte[] encryptedSymmetricKey = System.IO.File.ReadAllBytes(@"C:\\Users\\SengokuMedaru\\Desktop\\keys\\encryptedSymmetricKey.txt");
//Gets the symmetric key by decrypting the encrypted symmetric key with the decryption (private) key
byte[] decryptedSymmetricKey = kc.asymmetricDecryption(encryptedSymmetricKey);
//Encrypts plaintext with symmetric key
byte[] cipherText = kc.symmetricEncryption(byteFormatOfFile, decryptedSymmetricKey, IV);
//For debugging purposes
fileName = System.IO.Path.GetFileNameWithoutExtension(fileName);
byte[] testOutput = cipherText;
System.IO.File.WriteAllBytes(@"C:\\Users\\SengokuMedaru\\Desktop\\EncryptedText\\encrypted_" + fileName, testOutput);
Console.WriteLine(fileName + " has successfully been encrypted!");
Console.WriteLine("");
//Bryan code below
ConnectionStringSettings conSettings = ConfigurationManager.ConnectionStrings["connString"];
string connectionString = conSettings.ConnectionString;
string VirusName;
string type;
SqlCommand cmd5;
String imgLocation = "";
int virus = 0;
byte[] checkMD5;
path = filename1;
Console.Write(path);
byte[] md5HashBytes = ComputeMd5Hash(path);
String strMd5 = ToHexadecimal(md5HashBytes);
Console.Write(strMd5);
con = new SqlConnection(connectionString);
con.Open();
// cmd5 = new SqlCommand("SELECT vxVirusName, vxType FROM [User].[dbo].[vx] WHERE vxMD5 = " + checkMD5 + " ; ", con);
cmd5 = new SqlCommand("SELECT vxVirusName, vxType,vxMD5,BYTE FROM [User].[dbo].[vx] WHERE vxMD5 = @checkMD5 ", con);
cmd5.Parameters.Add(new SqlParameter("@checkMD5", strMd5));
Console.Write(strMd5);
SqlDataReader reader1 = cmd5.ExecuteReader();
if (reader1.Read() == true)
{
VirusName = reader1.GetString(0);
type = reader1.GetString(1);
System.Windows.MessageBox.Show(" \n Virus Dected : " + VirusName + " | Type Of Virus : " + type);
Console.WriteLine(" \n Virus Dected : " + VirusName + " | Type Of Virus : " + type);
con.Close();
virus = virus + 1;
}
else
{
con.Close();
con.Open();
string finalPath = fullPath();
FileStream Stream = new FileStream(finalPath, FileMode.Open, FileAccess.Read);
BinaryReader brs = new BinaryReader(Stream);
byte[] images = brs.ReadBytes((int)Stream.Length);
String strImage = System.Text.Encoding.UTF8.GetString(images);
cmd2 = new SqlCommand("SELECT vxVirusName, vxType,vxMD5,BYTE FROM [User].[dbo].[vx] WHERE tID = 5002 ", con);
// cmd2.Parameters.Add(new SqlParameter("@BYTE", strImage));
SqlDataReader reader2 = cmd2.ExecuteReader();
if (reader2.Read() == true)
{
if (strImage.Contains(reader2.GetString(3)))
{
virus = virus + 1;
VirusName = reader2.GetString(0);
type = reader2.GetString(1);
System.Windows.MessageBox.Show("\n VIRUS DECTED!Your File is not being Uploaded \n Virus Dected : " + VirusName + " | Type Of Virus : " + type);
Console.WriteLine(" \n VIRUS DECTED! Your File is not being Uploaded");
Console.WriteLine(" \n Virus Dected : " + VirusName + " | Type Of Virus : " + type);
}
else
{
Console.WriteLine("\n There is no virus! Very Good!! ");
Console.WriteLine("\n File is now being uploaded......");
System.Windows.MessageBox.Show("\n File is now being uploaded......");
}
}
else
{
Console.WriteLine("\n There is no virus! Very Good!! ");
Console.WriteLine("\n File is now being uploaded......");
}
con.Close();
}
if (virus == 0)
{
ConnectionStringSettings conSettings1 = ConfigurationManager.ConnectionStrings["connString1"];
ConnectionStringSettings conSettings2 = ConfigurationManager.ConnectionStrings["connString2"];
ConnectionStringSettings conSettings3 = ConfigurationManager.ConnectionStrings["connString3"];
string connectionString1 = conSettings1.ConnectionString;
string connectionString2 = conSettings2.ConnectionString;
string connectionString3 = conSettings3.ConnectionString;
imgLocation = dlg.FileName.ToString();
con = new SqlConnection(connectionString);
con1 = new SqlConnection(connectionString1);
con2 = new SqlConnection(connectionString2);
con3 = new SqlConnection(connectionString3);
byte[] images = null;
byte[] images1 = null;
byte[] images2 = null;
byte[] images3 = null;
BitArray b1;
FileStream Stream = new FileStream(imgLocation, FileMode.Open, FileAccess.Read);
BinaryReader brs = new BinaryReader(Stream);
images = brs.ReadBytes((int)Stream.Length);
String strImage = System.Text.Encoding.UTF8.GetString(images);
// Console.Write(strImage);
int leng = images.Length / 3;
Console.Write("Length : " + leng);
images1 = images.Take(leng).ToArray();
// images1 = strImage.Substring(1,leng);
images2 = images.Skip(leng).Take(leng).ToArray();
int leng2 = leng + leng;
images3 = images.Skip(leng2).Take(leng).ToArray();
con.Open();
con1.Open();
con2.Open();
con3.Open();
//BitArray bits1 = new BitArray(images1);
// BitArray bits2 = new BitArray(images2);
// BitArray bits3 = new BitArray(images3);
string sqlQuery = "Insert into dbo.UserFiles(Username,Name,Image)Values( 'superman' , 'man' , @images )";
cmd = new SqlCommand(sqlQuery, con);
cmd.Parameters.Add(new SqlParameter("@images", images));
cmd.ExecuteNonQuery();
string sqlQuery1 = "Insert into dbo.UserFiles1(Username,Name,Image)Values( '123456' , 'man' , @images1 )";
cmd = new SqlCommand(sqlQuery1, con1);
cmd.Parameters.Add(new SqlParameter("@images1", images1));
cmd.ExecuteNonQuery();
string sqlQuery2 = "Insert into dbo.UserFiles3(Username,Name,Image)Values( '123456' , 'man' , @images2 )";
cmd = new SqlCommand(sqlQuery2, con2);
cmd.Parameters.Add(new SqlParameter("@images2", images3));
cmd.ExecuteNonQuery();
string sqlQuery3 = "Insert into dbo.UserFiles2(Username,Name,Image)Values( '123456' , 'man' , @images3 )";
cmd = new SqlCommand(sqlQuery3, con3);
cmd.Parameters.Add(new SqlParameter("@images3", images2));
cmd.ExecuteNonQuery();
// cmd.Parameters.Add(new SqlParameter("@images",images));
// int N = cmd.ExecuteNonQuery();
con.Close();
Console.WriteLine("\n Data Has Been Uploaded");
System.Windows.MessageBox.Show("Datas Saved Success");
NavigationService.Navigate(new Page2());
}
}
// 25.7.17 UPDATE
//
// 1) Hash is not consistent. It is correct for some files, but wrong for some other files. (SOLVED)
//
// 2) Implement password in stego function. This password will be the input to generate a symmetric key to decrypt a file inside the carrier.
// File will be encrypted with this password(key), then stego-ed into the carrier.
// If key entered is correct, then the correct file will be extracted.
// If key entered is incorrect, a corrupted file will be extracted.
//
// 3) File decryption not complete (SOLVED)
}
}
private void uploadButton_Click(object sender, RoutedEventArgs e)
{
con = new SqlConnection(connectionString);
if (con.State == ConnectionState.Closed)
{
con.Open();
}
sqlQuery = "SELECT keyPath FROM dbo.test WHERE UserID='" + currentUserName + "'";
cmd = new SqlCommand(sqlQuery, con);
SqlDataReader DataRead1 = cmd.ExecuteReader();
string bigPath = null;
while (DataRead1.Read())
{
bigPath = DataRead1.GetString(0);
}
if (con.State == ConnectionState.Open)
{
con.Close();
}
OpenFileDialog dlg = new OpenFileDialog();
if (dlg.ShowDialog() == DialogResult.OK)
{
Controllers.KeyController kc = new Controllers.KeyController();
string fileName;
fileName = dlg.FileName;
filename1 = fileName;
byte[] byteFormatOfFile = File.ReadAllBytes(@fileName);
//Hash Computation
SHA1CryptoServiceProvider sha1 = new SHA1CryptoServiceProvider();
byte[] byteComputedHash;
using (FileStream stream = File.OpenRead(fileName))
{
SHA1Managed sha = new SHA1Managed();
byteComputedHash = sha.ComputeHash(stream);
}
Controllers.HashController hashController = new Controllers.HashController();
stringComputedHash = hashController.HexStringFromBytes(byteComputedHash).ToUpper();
//Important line to ensure user inputted hash stays at no more than 40 chars
hash = stringUserHashInput(userHashInput);
Console.WriteLine(hash);
String filename = System.IO.Path.GetFileNameWithoutExtension(dlg.FileName);
String fullfilename = System.IO.Path.GetFullPath(dlg.FileName);
String extension = System.IO.Path.GetExtension(dlg.FileName);
//Actions to take if hash not equals to computed hash
if (!(hash.Equals(stringComputedHash)))
{
//Do stuff:
//Stuff like an error message box pop up (done)
//Clear the userInputHash box (done)
//Break from the current method (done)
Controllers.Prompt.ShowDialog1("Hash does not match!", "Error");
userHashInput.Document.Blocks.Clear();
}
//If both hashes match, start encryption & slicing processes
else
{
byte[] IV = System.IO.File.ReadAllBytes(@bigPath + "\\IV.txt");
Console.WriteLine("Gets bytes of IV");
byte[] encryptedSymmetricKey = System.IO.File.ReadAllBytes(@bigPath + "\\encryptedSymmetricKey.txt");
//Gets the symmetric key by decrypting the encrypted symmetric key with the decryption (private) key
byte[] decryptedSymmetricKey = kc.asymmetricDecryption(encryptedSymmetricKey);
//Encrypts plaintext with symmetric key
byte[] cipherText = kc.symmetricEncryption(byteFormatOfFile, decryptedSymmetricKey, IV);
//Bryan code below
ConnectionStringSettings conSettings = ConfigurationManager.ConnectionStrings["connString"];
string connectionString = conSettings.ConnectionString;
string VirusName;
string type;
SqlCommand cmd5;
String imgLocation = "";
int virus = 0;
byte[] checkMD5;
path = filename1;
Console.Write(path);
byte[] md5HashBytes = ComputeMd5Hash(path);
String strMd5 = ToHexadecimal(md5HashBytes);
Console.Write(strMd5);
con = new SqlConnection(connectionString);
con.Open();
// cmd5 = new SqlCommand("SELECT vxVirusName, vxType FROM [User].[dbo].[vx] WHERE vxMD5 = " + checkMD5 + " ; ", con);
cmd5 = new SqlCommand("SELECT vxVirusName, vxType,vxMD5,BYTE FROM [User].[dbo].[vx] WHERE vxMD5 = @checkMD5 ", con);
cmd5.Parameters.Add(new SqlParameter("@checkMD5", strMd5));
Console.Write(strMd5);
SqlDataReader reader1 = cmd5.ExecuteReader();
if (reader1.Read() == true)
{
VirusName = reader1.GetString(0);
type = reader1.GetString(1);
System.Windows.MessageBox.Show(" \n Virus Dected : " + VirusName + " | Type Of Virus : " + type);
Console.WriteLine(" \n Virus Dected : " + VirusName + " | Type Of Virus : " + type);
con.Close();
virus = virus + 1;
}
else
{
con.Close();
con.Open();
string finalPath = fullPath();
FileStream Stream = new FileStream(finalPath, FileMode.Open, FileAccess.Read);
BinaryReader brs = new BinaryReader(Stream);
byte[] images = brs.ReadBytes((int)Stream.Length);
String strImage = System.Text.Encoding.UTF8.GetString(images);
cmd2 = new SqlCommand("SELECT vxVirusName, vxType,vxMD5,BYTE FROM [User].[dbo].[vx] WHERE tID = 5002 ", con);
// cmd2.Parameters.Add(new SqlParameter("@BYTE", strImage));
SqlDataReader reader2 = cmd2.ExecuteReader();
if (reader2.Read() == true)
{
if (strImage.Contains(reader2.GetString(3)))
{
virus = virus + 1;
VirusName = reader2.GetString(0);
type = reader2.GetString(1);
System.Windows.MessageBox.Show(" \n VIRUS DECTED! Your File is not being Uploaded");
System.Windows.MessageBox.Show(" \n Virus Dected : " + VirusName + " | Type Of Virus : " + type);
}
else
{
System.Windows.MessageBox.Show("\n There is no virus! Very Good!! ");
Console.WriteLine("\n File is now being uploaded......");
System.Windows.MessageBox.Show("\n File is now being uploaded......");
}
}
else
{
System.Windows.MessageBox.Show("\n There is no virus! Very Good!! ");
System.Windows.MessageBox.Show("\n File is now being uploaded......");
}
con.Close();
}
if (virus == 0)
{
FileModel fm = new FileModel(currentUserName, filename, cipherText, getFileSize(cipherText.Length), getCurrent(), "no", "no", extension, currentUserName);
fm.setShow(true);
FileModel.setFileModel(fm);
//FileModel fm = FileModel.getFileModel();
Page UploadingConsole = new Layout.Upload.Page2();
NavigationService.Navigate(UploadingConsole);
}
}
// 25.7.17 UPDATE
//
// 1) Hash is not consistent. It is correct for some files, but wrong for some other files. (SOLVED)
//
// 2) Implement password in stego function. This password will be the input to generate a symmetric key to decrypt a file inside the carrier.
// File will be encrypted with this password(key), then stego-ed into the carrier.
// If key entered is correct, then the correct file will be extracted.
// If key entered is incorrect, a corrupted file will be extracted.
//
// 3) File decryption not complete (SOLVED)
}
}
