private void button1_Click(object sender, EventArgs e)
{
DialogResult result = openFileDialog1.ShowDialog();
if (result == DialogResult.OK)
{
string NameOfFile = openFileDialog1.FileName;
string fileName = NameOfFile;
FileInfo f = new FileInfo(fileName);
long s1 = f.Length;
if (s1 > 50000000)
{
MessageBox.Show("Selected file is too large ! : " + Convert.ToString(s1));
MessageBox.Show("Application is aborting! . . .");
Application.Exit();
}
try
{
string[] file = NameOfFile.Split('\\');
MessageBox.Show(file[file.Length - 1]);
byte[] FileRAW = File.ReadAllBytes(NameOfFile);
string file_Encrypted = sy_C.encryptFile(FileRAW);
string s_key = Convert.ToBase64String(sy_C.sessionkey);
string iv = Convert.ToBase64String(sy_C.sessioniv);
s_key = s_key.ToString();
iv = iv.ToString();
byte[] encrypted_sessionkey = Asy_e.EncryptData(s_key, File.ReadAllText("PublicKey.xml"));
byte[] encrypted_iv = Asy_e.EncryptData(iv, File.ReadAllText("PublicKey.xml"));
s_key = Convert.ToBase64String(encrypted_sessionkey);
iv = Convert.ToBase64String(encrypted_iv);
writer.WriteLine(file[file.Length - 1]);
writer.WriteLine(s_key);
writer.WriteLine(iv);
writer.WriteLine(file_Encrypted);
writer.Flush();
string message = reader.ReadLine();
MessageBox.Show(message);
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
}
protected void EncryptCommand_Click(object sender, EventArgs e)
{
// Check for encryption key
if (!File.Exists(KeyFileName))
{
Response.Write("Missing encryption key. Please generate key!");
}
try
{
byte[] data = AsymmetricEncryptionUtility.EncryptData(
ClearDataText.Text, PublicKeyText.Text);
EncryptedDataText.Text = Convert.ToBase64String(data);
}
catch
{
Response.Write("Unable to encrypt data!");
}
}