private void Encrypt_Click(object sender, EventArgs e)
{
if (DES.Checked == false && AES.Checked == false && test.Checked == false)
{
MessageBox.Show("You must choose a cipher method!", "Oops!", MessageBoxButtons.YesNo, MessageBoxIcon.Hand);
}
else if (key.Text == null)
{
MessageBox.Show("You must enter the encryption key!", "Oops!", MessageBoxButtons.YesNo, MessageBoxIcon.Hand);
}
else
{
if (plaintext.Text == null)
{
MessageBox.Show("Please enter the text need to be encrypt.", "Tips", MessageBoxButtons.YesNo, MessageBoxIcon.Hand);
}
else
{
if (DES.Checked == true)
{
ciphertext1.Text = DEScipher.Encrypt(plaintext.Text, key.Text);
}
else if (AES.Checked == true)
{
encryptBytes = AEScipher.AESEncrypt(plaintext.Text, key.Text);
ciphertext1.Text = Convert.ToBase64String(encryptBytes);
}
else if ((test.Checked == true) && (m != null) && (int.Parse(m.Text.ToString()) >= 3))
{
string cipherresult_ndes = NDes.NDes.NDESEncrypt(plaintext.Text, key.Text, m.Text);
ciphertext1.Text = cipherresult_ndes;
}
}
}
}
protected void Button1_Click(object sender, EventArgs e)
{
AppUser AppUser = new AppUser();
if (AppUser.LoadByPrimaryKey(txtUserId.Text.Trim()))
{
if (AppUser.Password == AEScipher.Encrypt(txtUserId.Text, txtPassword.Text))
{
HttpContext.Current.Session["UserId"] = AppUser.UserID;
HttpContext.Current.Session["UserName"] = AppUser.UserName;
AuditTrail AuditTrail = new AuditTrail();
string itemAction = "Login per Tanggal : " + DateTime.Now.ToShortDateString() + " , untuk UserID : " + AppUser.UserID;
if (itemAction.Length > 200)
{
itemAction = itemAction.Substring(0, 200);
}
AuditTrail.ItemAction = itemAction;
AuditTrail.Aksi = "LOGIN";
AuditTrail.DateAction = DateTime.Now;
AuditTrail.Save();
Response.Redirect("~/Default.aspx");
}
else
{
return;
}
}
else
{
return;
}
}
private void button1_Click(object sender, EventArgs e)
{
string fileresult = "";
FileStream myStream = new FileStream(find.Text, FileMode.Open, FileAccess.Read); //打开文件，把文件读取到string变量
StreamReader myStreamReader = new StreamReader(find.Text, System.Text.Encoding.Default);
string fileContent;
fileContent = myStreamReader.ReadToEnd();
myStreamReader.Close();
if (find.Text.Trim() != string.Empty)
{
if (key.Text.Trim() != string.Empty)
{
Stopwatch stopwatch = new Stopwatch();
TimeSpan timespan;
double milliseconds;
stopwatch.Start(); // 开始监视代码运行时间
if (DES.Checked == true)
{
fileresult = DEScipher.Encrypt(fileContent, key.Text);
}
else if (AES.Checked == true)
{
encryptBytes = AEScipher.AESEncrypt(fileContent, key.Text);
fileresult = Convert.ToBase64String(encryptBytes);
}
else if ((test.Checked == true) && (m.Text.Trim() != string.Empty) && (int.Parse(m.Text) >= 3))
{
fileresult = NDes.NDes.NDESEncrypt(fileContent, key.Text, m.Text);
}
stopwatch.Stop();
timespan = stopwatch.Elapsed;
milliseconds = timespan.TotalMilliseconds / 1000; // 总毫秒数
time.Text = milliseconds.ToString() + "sec";
}
else
{
MessageBox.Show(this, "Please Input the Key！", "Tips", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else
{
MessageBox.Show(this, "Please choose the file to be encrypt！", "Tips", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
FileStream myStreamr = new FileStream(save.Text, FileMode.Create, FileAccess.Write); //创建一个文件，把字符串写入文件
StreamWriter myStreamWriter = new StreamWriter(myStreamr);
myStreamWriter.Write(fileresult);
myStreamWriter.Close();
}
private void button2_Click(object sender, EventArgs e)
{
string fileresult = "";
FileStream myStream = new FileStream(find.Text, FileMode.Open, FileAccess.Read); //打开文件，把文件读取到string变量
StreamReader myStreamReader = new StreamReader(find.Text, System.Text.Encoding.Default);
string fileContent;
fileContent = myStreamReader.ReadToEnd();
myStreamReader.Close();
if (find.Text.Trim() != string.Empty)
{
if (key.Text.Trim() != string.Empty)
{
if (DES.Checked == true)
{
fileresult = DEScipher.Decrypt(fileContent, key.Text);
}
else if (AES.Checked == true)
{
//byte[] encryptB = Encoding.UTF8.GetBytes(ciphertext1.ToString());
byte[] decryptBytes = AEScipher.AESDecrypt(encryptBytes, key.Text);
fileresult = Encoding.UTF8.GetString(decryptBytes);
}
else if ((test.Checked == true) && (m.Text.Trim() != string.Empty) && (int.Parse(m.Text) >= 3))
{
fileresult = NDes.NDes.NDESDecrypt(fileContent, key.Text, m.Text);
}
}
else
{
MessageBox.Show(this, "Please Input the Key！", "Tips", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
else
{
MessageBox.Show(this, "Please choose the file to be decrypt！", "Tips", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
FileStream myStreamr = new FileStream(save.Text, FileMode.Create, FileAccess.Write); //创建一个文件，把字符串写入文件
StreamWriter myStreamWriter = new StreamWriter(myStreamr);
myStreamWriter.Write(fileresult);
myStreamWriter.Close();
}
private void Decrypt_Click(object sender, EventArgs e)
{
if (DES.Checked == false && AES.Checked == false && test.Checked == false)
{
MessageBox.Show("You must choose a cipher method!", "Oops!", MessageBoxButtons.YesNo, MessageBoxIcon.Hand);
}
else if (key.Text == null)
{
MessageBox.Show("You must enter decryption key!", "Oops!", MessageBoxButtons.YesNo, MessageBoxIcon.Hand);
}
else
{
if (ciphertext.Text == null)
{
MessageBox.Show("Please enter the text need to be decrypt.", "Tips", MessageBoxButtons.YesNo, MessageBoxIcon.Hand);
}
else
{
if (DES.Checked == true)
{
plaintext1.Text = DEScipher.Decrypt(ciphertext.Text, key.Text);
}
else if (AES.Checked == true)
{
//byte[] encryptB = Encoding.UTF8.GetBytes(ciphertext1.ToString());
byte[] decryptBytes = AEScipher.AESDecrypt(encryptBytes, key.Text);
plaintext1.Text = Encoding.UTF8.GetString(decryptBytes);
}
else if ((test.Checked == true) && (m != null) && (int.Parse(m.Text.ToString()) >= 3))
{
string decipherresult_ndes = NDes.NDes.NDESDecrypt(ciphertext.Text, key.Text, m.Text);
plaintext1.Text = decipherresult_ndes;
}
}
}
}
