private async void decrypt_btn_Click(object sender, EventArgs e)
{
if (Is_Decrypting)
{
if (MessageBox.Show(icon: MessageBoxIcon.Warning, buttons: MessageBoxButtons.YesNo, caption: "Abort", text: "The program is decrypting now, are you sure you want to abort?") == DialogResult.No)
{
return;
}
cancelTokenSource.Cancel();
Is_Decrypting = false;
//复苏被冻结的Textbox
decrypt_btn.Text = "Decrypt";
foreach (TextBox textBox in Plgbd.Controls)
{
textBox.ReadOnly = false;
}
foreach (TextBox textBox in Rotor.Controls)
{
textBox.ReadOnly = false;
}
foreach (TextBox textBox in RingSetting.Controls)
{
textBox.ReadOnly = false;
}
foreach (TextBox textBox in MessageKey.Controls)
{
textBox.ReadOnly = false;
}
CypherText.ReadOnly = MD5.ReadOnly = false;
PlainText.ForeColor = Color.DarkBlue;
PlainText.Text = "**DECRYPT_ABORTED**";
return;
}
Is_Decrypting = true;
string decrypted = string.Empty; //解密后的明文
int count = 0; //缺失的信息的个数
foreach (TextBox textBox in Rotor.Controls)
{
if (textBox.Text == string.Empty)
{
count++;
}
}
foreach (TextBox textBox in RingSetting.Controls)
{
if (textBox.Text == string.Empty)
{
count++;
}
}
foreach (TextBox textBox in MessageKey.Controls)
{
if (textBox.Text == string.Empty)
{
count++;
}
}
if (count == 6 && MessageBox.Show(icon: MessageBoxIcon.Warning, buttons: MessageBoxButtons.OKCancel, caption: "Warning", text: "This might take a long time, continue?") == DialogResult.Cancel)
{
return;
}
if (count >= 7 && MessageBox.Show(icon: MessageBoxIcon.Warning, buttons: MessageBoxButtons.OKCancel, caption: "Warning", text: "This might take VERY LONG time, continue?") == DialogResult.Cancel)
{
return;
}
//生成cancellationtoken与stopwatch
CancellationToken cancellation = cancelTokenSource.Token;
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
//开始在UI线程上做相关的准备，比如更改button名字、Unable各种东西
foreach (TextBox textBox in Plgbd.Controls)
{
textBox.ReadOnly = true;
}
foreach (TextBox textBox in Rotor.Controls)
{
textBox.ReadOnly = true;
}
foreach (TextBox textBox in RingSetting.Controls)
{
textBox.ReadOnly = true;
}
foreach (TextBox textBox in MessageKey.Controls)
{
textBox.ReadOnly = true;
}
CypherText.ReadOnly = MD5.ReadOnly = true;
decrypt_btn.Text = "Abort";
PlainText.Text = "Decrypting, Please wait";
//开始运行破解任务
await Task.Run(() =>
{
try
{
var plugboard = Get_Plugboard();
var rotor_num = Get_Rotor();
var ring_setting = Get_Ring_Setting();
var message_key = Get_Message_Key();
// plain_text = PlainText.Text;
string cypher_text = CypherText.Text;
string md5 = MD5.Text;
Enigma enigma = new Enigma(plugboard, rotor_num, ring_setting, message_key, "", cypher_text, md5);
decrypted = enigma.Decrpyt();
//显示破译数据
this.Invoke(new Action(() =>
{
if (Rotor1.Text == string.Empty || Rotor1.Text != enigma.rotor_num[0].ToString())
{
Rotor1.ForeColor = Color.DarkBlue; Rotor1.Text = enigma.rotor_num[0].ToString();
}
if (Rotor2.Text == string.Empty || Rotor2.Text != enigma.rotor_num[1].ToString())
{
Rotor2.ForeColor = Color.DarkBlue; Rotor2.Text = enigma.rotor_num[1].ToString();
}
if (Rotor3.Text == string.Empty || Rotor3.Text != enigma.rotor_num[2].ToString())
{
Rotor3.ForeColor = Color.DarkBlue; Rotor3.Text = enigma.rotor_num[2].ToString();
}
if (RS1.Text == string.Empty || RS1.Text != enigma.ring_setting[0].ToString())
{
RS1.ForeColor = Color.DarkBlue; RS1.Text = enigma.ring_setting[0].ToString();
}
if (RS2.Text == string.Empty || RS2.Text != enigma.ring_setting[1].ToString())
{
RS2.ForeColor = Color.DarkBlue; RS2.Text = enigma.ring_setting[1].ToString();
}
if (RS3.Text == string.Empty || RS3.Text != enigma.ring_setting[2].ToString())
{
RS3.ForeColor = Color.DarkBlue; RS3.Text = enigma.ring_setting[2].ToString();
}
if (MK1.Text == string.Empty || MK1.Text != enigma.message_key[0].ToString())
{
MK1.ForeColor = Color.DarkBlue; MK1.Text = enigma.message_key[0].ToString();
}
if (MK2.Text == string.Empty || MK2.Text != enigma.message_key[1].ToString())
{
MK2.ForeColor = Color.DarkBlue; MK2.Text = enigma.message_key[1].ToString();
}
if (MK3.Text == string.Empty || MK3.Text != enigma.message_key[2].ToString())
{
MK3.ForeColor = Color.DarkBlue; MK3.Text = enigma.message_key[2].ToString();
}
}));
stopwatch.Stop();
MessageBox.Show(text: "Success. Time:" + stopwatch.ElapsedMilliseconds / 1000.0 + "second", icon: MessageBoxIcon.Information, caption: "Success", buttons: MessageBoxButtons.OK);
}
catch (Exception ex)
{
MessageBox.Show(text: "Failed. Error:" + ex.Message + ", Time: " + stopwatch.ElapsedMilliseconds / 1000.0 + "second", icon: MessageBoxIcon.Error, caption: "Error", buttons: MessageBoxButtons.OK);
}
}, cancellation);
Is_Decrypting = false;
//复苏被冻结的Textbox
decrypt_btn.Text = "Decrypt";
foreach (TextBox textBox in Plgbd.Controls)
{
textBox.ReadOnly = false;
}
foreach (TextBox textBox in Rotor.Controls)
{
textBox.ReadOnly = false;
}
foreach (TextBox textBox in RingSetting.Controls)
{
textBox.ReadOnly = false;
}
foreach (TextBox textBox in MessageKey.Controls)
{
textBox.ReadOnly = false;
}
CypherText.ReadOnly = MD5.ReadOnly = false;
PlainText.ForeColor = Color.DarkBlue;
PlainText.Text = decrypted;
}