private string Decryption(string key, string text, string key2 = null)
{
string recieve;
switch (EncryptionComboBox.Text)
{
case "SHA 256":
recieve = SHA256Crypt.Decrypt(text, key);
break;
case "Triple DES":
recieve = TripleDESCrypt.DecryptString(key, text);
break;
case "3DES + SHA 256": string ShaDecryption = SHA256Crypt.Decrypt(text, key2);
recieve = TripleDESCrypt.DecryptString(key, ShaDecryption);
break;
default:
MessageBox.Show("No protocol Selected!");
recieve = null;
break;
}
return(recieve);
}
private void Sendbutton_Click(object sender, EventArgs e)
{
if (!String.IsNullOrWhiteSpace(Send_textBox.Text))
{
EncTextToSend = Send_textBox.Text;
switch (EncryptionComboBox.Text)
{
case "SHA 256": TextToSend = SHA256Crypt.Encrypt(EncTextToSend, EncKeytextBox.Text);
backgroundWorker2.RunWorkerAsync();
break;
case "Triple DES": TextToSend = TripleDESCrypt.EncryptString(EncKeytextBox.Text, EncTextToSend);
backgroundWorker2.RunWorkerAsync();
break;
case "3DES + SHA 256": string TripleEncryption = TripleDESCrypt.EncryptString(EncKeytextBox.Text, EncTextToSend);
TextToSend = SHA256Crypt.Encrypt(TripleEncryption, EncKeytextBox2.Text);
backgroundWorker2.RunWorkerAsync();
break;
default: MessageBox.Show("No protocol Selected!");
break;
}
}
Send_textBox.Clear();
}
private void EncryptSHAbutton_Click(object sender, EventArgs e)
{
if (!(string.IsNullOrWhiteSpace(EncCiphertextBox.Text) || string.IsNullOrWhiteSpace(EncSHAKeytextBox.Text)))
{
EncFinalCiphertextBox.Text = DecCiphertextBox.Text = SHA256Crypt.Encrypt(EncCiphertextBox.Text, EncSHAKeytextBox.Text);
}
else
{
MessageBox.Show("No input or input is just whitespaces", "Warning!");
}
}
private void enc_button_Click(object sender, EventArgs e)
{
if (!string.IsNullOrWhiteSpace(textBox1.Text) && !string.IsNullOrWhiteSpace(textBox3.Text))
{
string key = textBox1.Text;
string text = textBox3.Text;
textBox2.Text = SHA256Crypt.Encrypt(text, key);
}
else
{
MessageBox.Show("No input or input is just whitespaces", "Warning!");
}
}
private void DecryptSHAbutton_Click(object sender, EventArgs e)
{
if (!(string.IsNullOrWhiteSpace(DecCiphertextBox.Text) || string.IsNullOrWhiteSpace(DecSHA_key_textBox.Text)))
{
string plain = SHA256Crypt.Decrypt(DecCiphertextBox.Text, DecSHA_key_textBox.Text);
if (plain.Equals("CryptographicException"))
{
MessageBoxButtons buttons = MessageBoxButtons.OK;
DialogResult result = MessageBox.Show("Bad Key , Enter exact key", "Error", buttons, MessageBoxIcon.Error);
}
else
{
DecCipher2textBox.Text = plain;
}
}
else
{
MessageBox.Show("No input or input is just whitespaces", "Warning!");
}
}
private bool AttemptLogin(string userName, string pass)
{
AuthDataSet users = new AuthDataSet();
AuthDataSetTableAdapters.System_UsersTableAdapter usersAdapt = new AuthDataSetTableAdapters.System_UsersTableAdapter();
string encPass = SHA256Crypt.Encrypt(userName + "@" + pass);
encPass = "******";
usersAdapt.FillByLogin(users.System_Users, userName, encPass);
var table = users.System_Users;
if (table.Rows.Count > 0 && table.Rows[0] != null)
{
var row = table.Rows[0];
User user = new User()
{
Id = Convert.ToInt32(row[table.IdColumn.ColumnName]),
Name = row[table.NameColumn.ColumnName]?.ToString(),
FullName = row[table.FullNameColumn.ColumnName]?.ToString(),
Contact = new Data.ContactData()
{
Phone = row[table.PhoneColumn.ColumnName]?.ToString(),
Phone2 = row[table.Phone2Column.ColumnName]?.ToString(),
PhoneMobile = row[table.PhoneMobileColumn.ColumnName]?.ToString(),
Email = row[table.EmailColumn.ColumnName]?.ToString(),
}
};
Properties.Settings.Default.Session = new Session()
{
User = user,
CreatedDate = DateTime.Now
};
Properties.Settings.Default.Save();
}
return(Properties.Settings.Default.Session != null);
}
private void dec_button_Click(object sender, EventArgs e)
{
if (!string.IsNullOrWhiteSpace(textBox4.Text))
{
string key = textBox4.Text;
string cipher = textBox2.Text;
string res = SHA256Crypt.Decrypt(cipher, key);
if (res.Equals("CryptographicException"))
{
MessageBoxButtons buttons = MessageBoxButtons.OK;
DialogResult result = MessageBox.Show("Bad Key , Enter exact key", "Error", buttons, MessageBoxIcon.Error);
}
else
{
textBox6.Text = res;
}
}
else
{
MessageBox.Show("No input or input is just whitespaces", "Warning!");
}
}