private void btnDeleteFile_Click(object sender, EventArgs e)
{
if (lvFiles.SelectedItems.Count == 0)
{
return;
}
string fileName = lvFiles.SelectedItems[0].Text;
CryptoServiceClient cloudProxy = new CryptoServiceClient();
bool deleteSuccessfull = cloudProxy.DeleteFile(fileName);
if (deleteSuccessfull)
{
MessageBox.Show("File successfully deleted.", "Delete successfull", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
MessageBox.Show("Error while deleting file.", "Delete error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
cloudProxy.Close();
showCloudFiles();
}
private void btnCryptFile_Click(object sender, EventArgs e)
{
if (fileForCryptPath.Equals(""))
{
MessageBox.Show("File isn't selected!", "Missing file!", MessageBoxButtons.OK, MessageBoxIcon.Error);
lblFileCryptedSaved.Visible = false;
return;
}
byte[] file = null;
byte[] fileKey = Encoding.UTF8.GetBytes(generated256Key);
byte[] randomKey = Encoding.UTF8.GetBytes(randomed256Key);
if (generated256Key.Equals("") || randomed256Key.Equals(""))
{
MessageBox.Show("Key isn't generated", "Missing key!", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
file = File.ReadAllBytes(fileForCryptPath);
Dictionary <string, byte[]> properties = new Dictionary <string, byte[]>();
properties.Add("alphabet256", fileKey);
properties.Add("alphabet256Key", randomKey);
simpleSubstitutionAlgorithm.SetAlgorithmProperties(properties);
byte[] cryptedFile = simpleSubstitutionAlgorithm.Crypt(file);
File.WriteAllBytes(@".\\Crypted\\" + fileForCryptName + fileExtension, cryptedFile);
if (cxbSaveToCloud.Checked)
{
var cloudProxy = new CryptoServiceClient();
using (var stream = new FileStream(@".\\Crypted\\" + fileForCryptName + fileExtension, FileMode.Open, FileAccess.Read))
{
bool resultOfUpload = cloudProxy.UploadFile(fileForCryptName + fileExtension, stream);
if (resultOfUpload == true)
{
MessageBox.Show("File uploaded to cloud!", "Successfull upload!", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
MessageBox.Show("There was error while trying to upload file!", "Error while uploading!", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
cloudProxy.Close();
}
lblFileCryptedSaved.Visible = true;
lblFileCryptedSaved.Text = "File crypted!";
}
private void btnCryptFile_Click(object sender, EventArgs e)
{
if (fileForCryptPath.Equals(""))
{
MessageBox.Show("File isn't selected!", "Missing file!", MessageBoxButtons.OK, MessageBoxIcon.Error);
lblFileCryptedSaved.Visible = false;
return;
}
byte[] file = null;
if (txbFileKey.Text.Equals(""))
{
MessageBox.Show("Key isn't generated", "Missing key!", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
file = File.ReadAllBytes(fileForCryptPath);
byte[] key = Encoding.UTF8.GetBytes(txbFileKey.Text);
xxtea.SetKey(key);
byte[] cryptedFile = xxtea.Crypt(file);
File.WriteAllBytes(@".\\Crypted\\" + fileForCryptName + fileExtension, cryptedFile);
if (cxbSaveToCloud.Checked)
{
var cloudProxy = new CryptoServiceClient();
using (var stream = new FileStream(@".\\Crypted\\" + fileForCryptName + fileExtension, FileMode.Open, FileAccess.Read))
{
bool resultOfUpload = cloudProxy.UploadFile(fileForCryptName + fileExtension, stream);
if (resultOfUpload == true)
{
MessageBox.Show("File uploaded to cloud!", "Successfull upload!", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
MessageBox.Show("There was error while trying to upload file!", "Error while uploading!", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
cloudProxy.Close();
}
lblFileCryptedSaved.Visible = true;
lblFileCryptedSaved.Text = "File crypted!";
}
private void btnCryptFile_Click(object sender, EventArgs e)
{
if (fileForHashPath.Equals(""))
{
MessageBox.Show("File isn't selected!", "Missing file!", MessageBoxButtons.OK, MessageBoxIcon.Error);
lblFileCryptedSaved.Visible = false;
return;
}
byte[] file = null;
file = File.ReadAllBytes(fileForHashPath);
byte[] cryptedFile = sha2Algorithm.Crypt(file);
string hashStr = "";
for (int i = 0; i < 32; i++)
{
hashStr += string.Format("{0:X2}", cryptedFile[i]);
}
File.WriteAllText(@".\\Crypted\\" + fileForHashName + fileExtension, hashStr);
if (cxbSaveToCloud.Checked)
{
var cloudProxy = new CryptoServiceClient();
using (var stream = new FileStream(@".\\Crypted\\" + fileForHashName + fileExtension, FileMode.Open, FileAccess.Read))
{
bool resultOfUpload = cloudProxy.UploadFile(fileForHashName + fileExtension, stream);
if (resultOfUpload == true)
{
MessageBox.Show("File uploaded to cloud!", "Successfull upload!", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
MessageBox.Show("There was error while trying to upload file!", "Error while uploading!", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
cloudProxy.Close();
}
lblFileCryptedSaved.Visible = true;
lblFileCryptedSaved.Text = "File hashed!";
}
private void btnKriptujFile_Click(object sender, EventArgs e)
{
if (fileForCryptPath.Equals(""))
{
MessageBox.Show("File isn't selected!", "Missing file!", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
byte[] file = null;
file = File.ReadAllBytes(fileForCryptPath);
byte[] cryptedFile = algorithm.Crypt(file);
File.WriteAllBytes(@".\\Crypted\\" + fileForCryptName + fileExtension, cryptedFile);
if (checkCloud.Checked)
{
var cloudProxy = new CryptoServiceClient();
using (var stream = new FileStream(@".\\Crypted\\" + fileForCryptName + fileExtension, FileMode.Open, FileAccess.Read))
{
bool resultOfUpload = cloudProxy.UploadFile(fileForCryptName + fileExtension, stream);
if (resultOfUpload == true)
{
MessageBox.Show("File uploaded to cloud!", "Successfull upload!", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
MessageBox.Show("There was error while trying to upload file!", "Error while uploading!", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
cloudProxy.Close();
}
}
private void btnDownloadFile_Click(object sender, EventArgs e)
{
if (lvFiles.SelectedItems.Count == 0)
{
return;
}
string localFilePath = "";
string localFileName = lvFiles.SelectedItems[0].Text;
int blockSize = 2048;
CryptoServiceClient cloudProxy = new CryptoServiceClient();
Stream inputStream = cloudProxy.DownloadFile(ref localFileName);
string fileExtension = Path.GetExtension(localFileName);
using (SaveFileDialog sf = new SaveFileDialog())
{
sf.FileName = localFileName;
sf.Filter = "(*" + fileExtension + ")|" + fileExtension;
if (sf.ShowDialog() == DialogResult.OK)
{
localFilePath = sf.FileName;
}
else
{
return;
}
}
using (FileStream writeStream = new FileStream(localFilePath, FileMode.Create, FileAccess.Write))
{
byte[] buffer = new byte[blockSize];
do
{
var bytesRead = inputStream.Read(buffer, 0, buffer.Length);
if (bytesRead == 0)
{
break;
}
//Then it's last block
if (bytesRead < blockSize)
{
var temp = new byte[bytesRead];
Array.Copy(buffer, temp, bytesRead);
buffer = temp;
}
writeStream.Write(buffer, 0, buffer.Length);
} while (true);
writeStream.Close();
}
if (File.Exists(localFilePath))
{
MessageBox.Show("File downloaded.", "Downloaded successfull", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
else
{
MessageBox.Show("Error while downloading file.", "Downloading error", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
inputStream.Dispose();
cloudProxy.Close();
}
