private void countPart4()
{
try
{
while (!arrayM_available)
{
}
arrayM_available = false; //LOCK
//every M[i] mod 3 == 0 --> M[i] = M[i] * M[2]
for (int i = 0; i < arrayM.Count; i++)
{
if (arrayM[i] % 3 == 0)
{
arrayM[i] *= arrayM[2];
}
}
arrayM_available = true; //UNLOCK
return;
}
catch (Exception ex)
{
var logLine = DateTime.Now.ToString() + ": " + ex.Message;
log.Add(logLine);
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB3: " + ex.Message + Environment.NewLine);
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB3", "LAB3: " + ex.Message);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
arrayM_available = true;
return;
}
}
private void refreshTable()
{
try
{
dataGridView1.Rows.Clear();
var logs = MSSQL_logging.get_database_logs();
foreach (var log in logs)
{
dataGridView1.Rows.Add(log.logDateTime, log.labnumber, log.logtext);
}
}
catch
{
MessageBox.Show("Не удалось получить информацию из базы данных!", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void button2_Click(object sender, EventArgs e)
{
try
{
SaveFileDialog saveFileDialog1 = new SaveFileDialog();
saveFileDialog1.FileName = "SteganoContainer.bmp";
saveFileDialog1.Filter = "BMP image file (*.bmp)|*.bmp";
saveFileDialog1.FilterIndex = 2;
saveFileDialog1.RestoreDirectory = true;
if (saveFileDialog1.ShowDialog() == DialogResult.OK)
{
using (FileStream file = new FileStream(saveFileDialog1.FileName, FileMode.Create))
{
if (File.Exists("tempImg.bmp"))
{
byte[] imgContent = File.ReadAllBytes("tempImg.bmp");
file.Write(imgContent, 0, imgContent.Length);
}
else
{
throw new Exception("Попытка расшифровки без вспомогательного файла стеганоконтейнера!");
}
}
}
}
catch (Exception ex)
{
var logLine = DateTime.Now.ToString() + ": " + ex.Message;
log.Add(logLine);
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB2_TZSPD: " + ex.Message + Environment.NewLine);
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB2_TZSPD", "LAB2_TZSPD: " + ex.Message);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
Invoke(new UpdateLogBoxDelegate(InvokeUpdateLogBox));
MessageBox.Show(ex.Message, "Error.", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void addition_Click(object sender, EventArgs e)
{
string str = "";
try
{
int minlen, maxlen;
string min = null,
max = null;
char symbol1 = ' ';
char symbol2 = ' ';
if (name.Text.Length < surname.Text.Length)
{
minlen = name.Text.Length;
maxlen = surname.Text.Length;
min = name.Text;
max = surname.Text;
}
else
{
maxlen = name.Text.Length;
minlen = surname.Text.Length;
max = name.Text;
min = surname.Text;
}
tail.Text = "";
for (int i = minlen; i < maxlen; i++)
{
tail.Text += max[i];
}
for (int i = 0; i < minlen; i++)
{
symbol1 = name.Text[i];
symbol2 = surname.Text[i];
int symbol = symbol1 ^ symbol2;
if (symbol > 255)
{
throw new ArgumentOutOfRangeException("name_surname", "End-char size is out of ASCII range.");
}
//if (symbol == 3 || symbol == 0)
// throw new SystemCharException("System char exception!", symbol);
else
{
char csymb = (char)symbol;
str += csymb.ToString();
}
}
if (((int)str[0] == 3 || (int)str[0] == 0) && str.Length == 1)
{
throw new SystemCharException("System char exception!", (int)str[0]);
}
for (int i = minlen; i < maxlen; i++)
{
str += max[i];
}
result.Text = str;
result_ascii.Text = "";
foreach (char symb in result.Text)
{
result_ascii.Text += (int)symb + "; ";
}
if (name.Text.Any(char.IsDigit) || name.Text.Any(char.IsWhiteSpace))
{
throw new ArgumentException("Name contains unsupportable characters.");
}
else if (surname.Text.Any(char.IsDigit) || surname.Text.Any(char.IsWhiteSpace))
{
throw new ArgumentException("Surname contains unsupportable characters.");
}
}
catch (ArgumentOutOfRangeException ex)
{
result.Text = "Out of Range!";
var logLine = DateTime.Now.ToString() + ": " + ex.Message + "; INFO: name=" + name.Text + ",surname=" + surname.Text;
var lineNoTime = ex.Message + "; INFO: name=" + name.Text + ",surname=" + surname.Text;
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB1: " + ex.Message + "; INFO: name=" + name.Text + ",surname=" + surname.Text + Environment.NewLine);
log.Add(logLine);
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB1", "LAB1:" + ex.Message + "; INFO: name=" + name.Text + ",surname=" + surname.Text);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
}
catch (ArgumentException ex)
{
result.Text = "Incorrect inp";
var logLine = DateTime.Now.ToString() + ": " + ex.Message + "; INFO: name=" + name.Text + ",surname=" + surname.Text;
var lineNoTime = ex.Message + "; INFO: name=" + name.Text + ",surname=" + surname.Text;
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB1: " + ex.Message + "; INFO: name=" + name.Text + ",surname=" + surname.Text + Environment.NewLine);
log.Add(logLine);
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB1", "LAB1:" + ex.Message + "; INFO: name=" + name.Text + ",surname=" + surname.Text);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
}
catch (IndexOutOfRangeException ex)
{
result.Text = "Index OOR!";
var logLine = DateTime.Now.ToString() + ": " + ex.Message + "; INFO: name=" + name.Text + ",surname=" + surname.Text;
var lineNoTime = ex.Message + "; INFO: name=" + name.Text + ",surname=" + surname.Text;
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB1: " + ex.Message + "; INFO: name=" + name.Text + ",surname=" + surname.Text + Environment.NewLine);
log.Add(logLine);
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB1", "LAB1:" + ex.Message + "; INFO: name=" + name.Text + ",surname=" + surname.Text);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
}
catch (SystemCharException ex)
{
result.Text = "System char!";
result_ascii.Text = ex.code.ToString();
var logLine = DateTime.Now.ToString() + ": " + ex.Message + "; INFO: name=" + name.Text + ",surname=" + surname.Text + ",char=" + ex.code;
var lineNoTime = ex.Message + "; INFO: name=" + name.Text + ",surname=" + surname.Text + ",char=" + ex.code;
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB1: " + ex.Message + "; INFO: name=" + name.Text + ",surname=" + surname.Text + Environment.NewLine);
log.Add(logLine);
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB1", "LAB1:" + ex.Message + "; INFO: name=" + name.Text + ",surname=" + surname.Text);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
}
catch (Exception ex)
{
result.Text = ex.Message;
var logLine = DateTime.Now.ToString() + ": " + ex.Message + "; INFO: name=" + name.Text + ",surname=" + surname.Text;
var lineNoTime = ex.Message + "; INFO: name=" + name.Text + ",surname=" + surname.Text;
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB1: Unhandled Exception; INFO: name=" + name.Text + ",surname=" + surname.Text + Environment.NewLine);
log.Add(logLine);
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB1", "LAB1:" + ex.Message + "; INFO: name=" + name.Text + ",surname=" + surname.Text);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
}
finally
{
Invoke(new UpdateLogBoxDelegate(InvokeUpdateLogBox));
name_ascii.Text = "";
surname_ascii.Text = "";
tail_ascii.Text = "";
foreach (char symb in name.Text)
{
name_ascii.Text += (int)symb + "; ";
}
foreach (char symb in surname.Text)
{
surname_ascii.Text += (int)symb + "; ";
}
foreach (char symb in tail.Text)
{
tail_ascii.Text += (int)symb + "; ";
}
}
}
private void button1_Click(object sender, EventArgs e)
{
if (textBox_message.TextLength > msg_max_len)
{
var logLine = DateTime.Now.ToString() + ": Сообщение слишком длинное для данного контейнера!";
var lineNoTime = "LAB1_TZSPD: Сообщение слишком длинное для данного контейнера!";
log.Add(logLine);
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB1_TZSPD: Сообщение слишком длинное для данного контейнера!" + Environment.NewLine);
MessageBox.Show("Сообщение слишком длинное для данного контейнера!", "Error.", MessageBoxButtons.OK, MessageBoxIcon.Error);
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB1_TZSPD", lineNoTime);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
Invoke(new UpdateLogBoxDelegate(InvokeUpdateLogBox));
return;
}
if (textBox_message.TextLength + 256 > msg_max_len && checkBox_sha256.Checked)
{
var logLine = DateTime.Now.ToString() + ": Сообщение С контрольной суммой SHA-256 слишком длинное для данного контейнера!";
var lineNoTime = "LAB1_TZSPD: Сообщение С контрольной суммой SHA-256 слишком длинное для данного контейнера!";
log.Add(logLine);
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB1_TZSPD: Сообщение С контрольной суммой SHA-256 слишком длинное для данного контейнера!" + Environment.NewLine);
MessageBox.Show("Сообщение С контрольной суммой SHA-256 слишком длинное для данного контейнера!", "Error.", MessageBoxButtons.OK, MessageBoxIcon.Error);
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB1_TZSPD", lineNoTime);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
Invoke(new UpdateLogBoxDelegate(InvokeUpdateLogBox));
return;
}
if (textBoxContainer.Text.Contains(" "))
{
var logLine = DateTime.Now.ToString() + ": В контейнере двойные или более пробелы! Пожалуйста, нормализуйте контейнер сначала!";
var lineNoTime = "LAB1_TZSPD: В контейнере двойные или более пробелы! Пожалуйста, нормализуйте контейнер сначала!";
log.Add(logLine);
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB1_TZSPD: В контейнере двойные или более пробелы! Пожалуйста, нормализуйте контейнер сначала!" + Environment.NewLine);
MessageBox.Show("В контейнере двойные или более пробелы! Пожалуйста, нормализуйте контейнер сначала!", "Error.", MessageBoxButtons.OK, MessageBoxIcon.Error);
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB1_TZSPD", lineNoTime);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
Invoke(new UpdateLogBoxDelegate(InvokeUpdateLogBox));
return;
}
errorProvider1.Clear();
string hashBits = "";
if (checkBox_sha256.Checked)
{
SHA256 checksumm = SHA256.Create();
byte[] bytes = checksumm.ComputeHash(Encoding.UTF8.GetBytes(textBoxContainer.Text));
StringBuilder builder = new StringBuilder();
for (int i = 0; i < bytes.Length; i++)
{
builder.Append(bytes[i].ToString("x2"));
}
textBox_checkSumm.Text = builder.ToString();
//checksumm in binary
for (int i = 0; i < textBox_checkSumm.TextLength; i++)
{
string tempBin = "";
for (int j = 0; j < sizeof(byte) * 8; j++)
{
if (getBit(textBox_checkSumm.Text[i], j))
{
tempBin += "1";
}
else
{
tempBin += "0";
}
}
for (int j = tempBin.Length - 1; j != -1; j--)
{
hashBits += tempBin[j];
}
}
}
string msgBits = "";
textBox_messageBin.Text = "";
textBox_result.Text = "";
//message in binary
for (int i = 0; i < textBox_message.TextLength; i++)
{
string tempBin = "";
for (int j = 0; j < sizeof(char) * 8 / byte_size; j++)
{
if (getBit(textBox_message.Text[i], j))
{
tempBin += "1";
}
else
{
tempBin += "0";
}
}
for (int j = tempBin.Length - 1; j != -1; j--)
{
msgBits += tempBin[j];
}
}
drawBinaryMsg(msgBits); // draw
//steganography
if (checkBox_sha256.Checked)
{
string temp = msgBits;
msgBits = hashBits + temp;
}
ArrayList spacesListTemp = new ArrayList();
for (int i = 0; i < textBoxContainer.TextLength; i++)
{
if (textBoxContainer.Text[i] == ' ')
{
spacesListTemp.Add(i);
}
}
int msgPointer = 0;
ArrayList spacesList = new ArrayList();
foreach (int spacePos in spacesListTemp)
{
if (msgPointer == msgBits.Length)
{
break;
}
if (msgBits[msgPointer] == '0')
{
spacesList.Add(spacePos);
}
msgPointer++;
}
spacesListTemp.Clear();
int startPos = 0;
foreach (int space in spacesList)
{
textBox_result.Text += textBoxContainer.Text.Substring(startPos, space + 1 - startPos) + " ";
startPos = space + 1;
}
textBox_result.Text += textBoxContainer.Text.Substring(startPos);
}
private void button1_Click(object sender, EventArgs e)
{
try
{
if (textBox_prevpwd.Text != MSSQL_logging.userpassword)
{
throw new Exception("Пароль не соответствует текущему");
}
if (textBox_newpwd.TextLength < 14)
{
throw new Exception("Минимальная длина пароля - 14 символов");
}
if (textBox_newpwd.Text != textBox_newPwdCopy.Text)
{
throw new Exception("Новые пароли не совпадают");
}
//checking for bad passwords
bool bad = false;
foreach (var pwd in badpwdlist)
{
if (pwd == textBox_newpwd.Text)
{
bad = true;
break;
}
}
if (bad)
{
throw new Exception("Выбран слабый пароль!");
}
//hashing
string hash = MathOperations.sha256(textBox_newpwd.Text);
//update password ===============
string query = "update logins set hash='" + hash + "' where id=" + MSSQL_logging.user_id.ToString();
var command = new Microsoft.Data.SqlClient.SqlCommand(query, MSSQL_logging.database_connection);
if (command.Connection.State != System.Data.ConnectionState.Open)
{
command.Connection.Open();
}
command.ExecuteNonQuery();
//delete old pwd =============
query = "delete from keys where login_id=" + MSSQL_logging.user_id;
command.CommandText = query;
command.ExecuteNonQuery();
//renew key =================
MSSQL_logging.GetPrivateKeyFromDB();
var aesInst = System.Security.Cryptography.Aes.Create();
var privKeysha256 = MathOperations.sha256_byte(textBox_newpwd.Text);
var ivmd5 = MathOperations.md5_byte(textBox_newpwd.Text);
//enc private key with sha256(pwd) and md5(pwd)
aesInst.Key = privKeysha256;
aesInst.IV = ivmd5;
var Encrypted_SK = aesInst.CreateEncryptor().TransformFinalBlock(MSSQL_logging.AesInst.Key, 0, MSSQL_logging.AesInst.Key.Length);
string Encrypted_SK_String_HEX = "0x";
foreach (byte part in Encrypted_SK)
{
Encrypted_SK_String_HEX += part.ToString("X2");
}
var Encrypted_IV = aesInst.CreateEncryptor().TransformFinalBlock(MSSQL_logging.AesInst.IV, 0, MSSQL_logging.AesInst.IV.Length);
string Encrypted_IV_String_HEX = "0x";
foreach (byte part in Encrypted_IV)
{
Encrypted_IV_String_HEX += part.ToString("X2");
}
query = "insert into keys values (" + MSSQL_logging.user_id.ToString() + ", " + Encrypted_SK_String_HEX + ", " + Encrypted_IV_String_HEX + ")";
command.CommandText = query;
command.ExecuteNonQuery();
command.Connection.Close();
//renew obj=================
MSSQL_logging.userpassword = textBox_newpwd.Text;
MSSQL_logging.GetPrivateKeyFromDB();
MessageBox.Show("Успешно!", "Уведомление", MessageBoxButtons.OK, MessageBoxIcon.Information);
this.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void button_calculate_Click(object sender, EventArgs e)
{
try
{
if (comboBox_inputMode.SelectedIndex == 0)
{
foreach (DataGridViewCell cell in dataGridView1.Rows[0].Cells)
{
if (cell.Value == null)
{
throw new Exception("Входной массив заполнен неверно!");
}
arrayP.Add(Int32.Parse(cell.Value.ToString()));
arrayM.Add(Int32.Parse(cell.Value.ToString()));
}
}
if (arrayP.Count == 0 || arrayM.Count == 0)
{
throw new Exception("Необходимо заполнить или сгенерировать исходный массив!");
}
//logic
var timerLinear = new Stopwatch();
var timerParallel = new Stopwatch();
button_calculate.Enabled = false;
button_calculate.Refresh();
//count linear
//save temp
timerLinear.Start();
countPart1();
countPart2();
countPart3();
countPart4();
timerLinear.Stop();
textBox_time_linear.Text = timerLinear.ElapsedTicks.ToString() + " тиков";
textBox_time_linear.Refresh();
//count parallel
arrayM.Clear();
arrayM.AddRange(arrayP.ToArray());
timerParallel.Start();
dataGridView1.Rows.Add();
Thread f1 = new Thread(new ThreadStart(countPart1));
Thread f2 = new Thread(new ThreadStart(countPart2));
f1.Start();
f2.Start();
f1.Join();
f2.Join();
Thread f21 = new Thread(new ThreadStart(countPart3));
Thread f22 = new Thread(new ThreadStart(countPart4));
f21.Start();
f21.Join();
f22.Start();
f22.Join();
timerParallel.Stop();
textBox_time_parallel.Text = timerParallel.ElapsedTicks.ToString() + " тиков";
textBox_time_parallel.Refresh();
//cut
for (int i = 0; i < arrayM.Count; i++)
{
dataGridView1.Rows[1].Cells[i].Value = arrayM[i];
}
arrayP.Clear();
arrayM.Clear();
Invoke(new UpdateLogBoxDelegate(InvokeUpdateLogBox));
}
catch (Exception ex)
{
dataGridView1.Rows.Clear();
dataGridView1.Rows.Add();
var logLine = DateTime.Now.ToString() + ": " + ex.Message;
log.Add(logLine);
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB3: " + ex.Message + Environment.NewLine);
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB3", "LAB3: " + ex.Message);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
Invoke(new UpdateLogBoxDelegate(InvokeUpdateLogBox));
}
}
public void InvokeUpdateInfo()
{
if (comboBox_inputMode.Text != prevousMode)
{
switch (comboBox_inputMode.Text)
{
case "Вручную":
textBox_randomFrequency.Clear();
textBox_randomFrequency.ReadOnly = true;
button_generate.Enabled = false;
button_calculate.Enabled = true;
checkBox_startGenTimer.Enabled = false;
dataGridView1.Rows.Clear();
dataGridView1.Rows.Add();
break;
case "Случайно":
textBox_randomFrequency.Clear();
textBox_randomFrequency.ReadOnly = true;
button_generate.Enabled = true;
button_calculate.Enabled = true;
checkBox_startGenTimer.Enabled = false;
dataGridView1.Rows.Clear();
break;
case "Случайно с частотой":
textBox_randomFrequency.ReadOnly = false;
textBox_randomFrequency.Text = "500";
button_generate.Enabled = false;
button_calculate.Enabled = false;
checkBox_startGenTimer.Enabled = true;
dataGridView1.Rows.Clear();
break;
}
textBox_randomFrequency.Refresh();
button_generate.Refresh();
button_calculate.Refresh();
checkBox_startGenTimer.Refresh();
prevousMode = comboBox_inputMode.Text;
}
if (checkBox_startGenTimer.Checked && !genTimerWasStarted)
{
try
{
timer_valid_check();
timer_genCount.Interval = int.Parse(textBox_randomFrequency.Text);
}
catch (Exception ex)
{
var logLine = DateTime.Now.ToString() + ": " + ex.Message;
log.Add(logLine);
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB3: " + ex.Message + Environment.NewLine);
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB3", "LAB3: " + ex.Message);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
Invoke(new UpdateLogBoxDelegate(InvokeUpdateLogBox));
}
finally
{
timer_genCount.Start();
genTimerWasStarted = true;
}
}
else if (!checkBox_startGenTimer.Checked && genTimerWasStarted)
{
timer_genCount.Stop();
genTimerWasStarted = false;
}
}
private void timer_genCount_Tick(object sender, EventArgs e)
{
try
{
var timerLinear = new Stopwatch();
var timerParallel = new Stopwatch();
//logic
//defines
int cells_per_row = Math.Abs(int.Parse(textBox_elementsOfA.Text));
int gen_min = int.Parse(textBox_gen_min.Text);
int gen_max = int.Parse(textBox_gen_max.Text);
//0. clear
dataGridView1.Rows.Clear();
//1. generate new
dataGridView1.Rows.Add();
var rnd = new Random();
for (int i = 0; i < cells_per_row; i++)
{
var newNumb = rnd.Next(gen_min, gen_max);
arrayP.Add(newNumb);
arrayM.Add(newNumb);
dataGridView1.Rows[0].Cells[i].Value = newNumb;
}
//count linear
timerLinear.Start();
countPart1();
countPart2();
countPart3();
countPart4();
timerLinear.Stop();
textBox_time_linear.Text = timerLinear.ElapsedTicks.ToString() + " тиков";
textBox_time_linear.Refresh();
//count parallel
arrayM.Clear();
arrayM.AddRange(arrayP.ToArray());
timerParallel.Start();
dataGridView1.Rows.Add();
Thread f1 = new Thread(new ThreadStart(countPart1));
Thread f2 = new Thread(new ThreadStart(countPart2));
f1.Start();
f2.Start();
f1.Join();
f2.Join();
Thread f21 = new Thread(new ThreadStart(countPart3));
Thread f22 = new Thread(new ThreadStart(countPart4));
f21.Start();
f21.Join();
f22.Start();
f22.Join();
timerParallel.Stop();
textBox_time_parallel.Text = timerParallel.ElapsedTicks.ToString() + " тиков";
textBox_time_parallel.Refresh();
//cut
for (int i = 0; i < arrayM.Count; i++)
{
dataGridView1.Rows[1].Cells[i].Value = arrayM[i];
}
arrayP.Clear();
arrayM.Clear();
Invoke(new UpdateLogBoxDelegate(InvokeUpdateLogBox));
}
catch (Exception ex)
{
var logLine = DateTime.Now.ToString() + ": " + ex.Message;
log.Add(logLine);
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB3: " + ex.Message + Environment.NewLine);
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB3", "LAB3: " + ex.Message);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
Invoke(new UpdateLogBoxDelegate(InvokeUpdateLogBox));
}
}
private void timer_valid_check()
{
//validation check
if (textBox_elementsOfA.TextLength == 0)
{
string message = "Размер массива должен быть указан!";
var logLine = DateTime.Now.ToString() + ": " + message;
log.Add(logLine);
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB3: " + message + Environment.NewLine);
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB3", "LAB3: " + message);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
Invoke(new UpdateLogBoxDelegate(InvokeUpdateLogBox));
checkBox_startGenTimer.Checked = false;
checkBox_startGenTimer.Refresh();
textBox_elementsOfA.Text = "20";
textBox_elementsOfA.Refresh();
MessageBox.Show(message, "Error.", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (textBox_gen_max.TextLength == 0)
{
string message = "Максимум генерации должен быть указан!";
var logLine = DateTime.Now.ToString() + ": " + message;
log.Add(logLine);
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB3: " + message + Environment.NewLine);
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB3", "LAB3: " + message);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
Invoke(new UpdateLogBoxDelegate(InvokeUpdateLogBox));
checkBox_startGenTimer.Checked = false;
checkBox_startGenTimer.Refresh();
textBox_gen_max.Text = "100";
textBox_gen_max.Refresh();
MessageBox.Show(message, "Error.", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (textBox_gen_min.TextLength == 0)
{
string message = "Минимум генерации должен быть указан!";
var logLine = DateTime.Now.ToString() + ": " + message;
log.Add(logLine);
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB3: " + message + Environment.NewLine);
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB3", "LAB3: " + message);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
Invoke(new UpdateLogBoxDelegate(InvokeUpdateLogBox));
checkBox_startGenTimer.Checked = false;
checkBox_startGenTimer.Refresh();
textBox_gen_min.Text = "-100";
textBox_gen_min.Refresh();
MessageBox.Show(message, "Error.", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
if (textBox_randomFrequency.TextLength == 0)
{
string message = "Частота должна быть указана!";
var logLine = DateTime.Now.ToString() + ": " + message;
log.Add(logLine);
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB3: " + message + Environment.NewLine);
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB3", "LAB3: " + message);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
Invoke(new UpdateLogBoxDelegate(InvokeUpdateLogBox));
checkBox_startGenTimer.Checked = false;
checkBox_startGenTimer.Refresh();
textBox_randomFrequency.Text = "500";
textBox_randomFrequency.Refresh();
MessageBox.Show(message, "Error.", MessageBoxButtons.OK, MessageBoxIcon.Error);
return;
}
}
private void button_generate_Click(object sender, EventArgs e)
{
try
{
//validation check
if (textBox_elementsOfA.TextLength == 0)
{
string message = "Размер массива должен быть указан!";
MessageBox.Show(message, "Error.", MessageBoxButtons.OK, MessageBoxIcon.Error);
var logLine = DateTime.Now.ToString() + ": " + message;
log.Add(logLine);
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB3: " + message + Environment.NewLine);
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB3", "LAB3: " + message);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
Invoke(new UpdateLogBoxDelegate(InvokeUpdateLogBox));
return;
}
if (textBox_gen_max.TextLength == 0)
{
string message = "Максимум генерации должен быть указан!";
MessageBox.Show(message, "Error.", MessageBoxButtons.OK, MessageBoxIcon.Error);
var logLine = DateTime.Now.ToString() + ": " + message;
log.Add(logLine);
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB3: " + message + Environment.NewLine);
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB3", "LAB3: " + message);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
Invoke(new UpdateLogBoxDelegate(InvokeUpdateLogBox));
return;
}
if (textBox_gen_min.TextLength == 0)
{
string message = "Минимум генерации должен быть указан!";
MessageBox.Show(message, "Error.", MessageBoxButtons.OK, MessageBoxIcon.Error);
var logLine = DateTime.Now.ToString() + ": " + message;
log.Add(logLine);
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB3: " + message + Environment.NewLine);
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB3", "LAB3: " + message);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
Invoke(new UpdateLogBoxDelegate(InvokeUpdateLogBox));
return;
}
//logic
button_calculate.Enabled = true;
button_calculate.Refresh();
//defines
int cells_per_row = Math.Abs(int.Parse(textBox_elementsOfA.Text));
int gen_min = int.Parse(textBox_gen_min.Text);
int gen_max = int.Parse(textBox_gen_max.Text);
//0. clear
dataGridView1.Rows.Clear();
arrayP.Clear();
arrayM.Clear();
//1. generate new
dataGridView1.Rows.Add();
var rnd = new Random();
for (int i = 0; i < cells_per_row; i++)
{
var newNumb = rnd.Next(gen_min, gen_max);
arrayP.Add(newNumb);
arrayM.Add(newNumb);
dataGridView1.Rows[0].Cells[i].Value = newNumb;
}
}
catch (Exception ex)
{
var logLine = DateTime.Now.ToString() + ": " + ex.Message;
log.Add(logLine);
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB3: " + ex.Message + Environment.NewLine);
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB3", "LAB3: " + ex.Message);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
Invoke(new UpdateLogBoxDelegate(InvokeUpdateLogBox));
}
}
private void InvokeUpdateInfo()
{
//checks
bool f_ok = true;
if (!IsDigitsOnly(numb_a.Text))
{
errorProvider1.SetError(numb_a, "Field must be number!");
var logLine = DateTime.Now.ToString() + ": В поле A не число.";
var lineNoTime = "LAB2: В поле A не число.";
log.Add(logLine);
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB2: В поле A не число.");
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB2", lineNoTime);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
f_ok = false;
}
if (!IsDigitsOnly(numb_b.Text))
{
errorProvider1.SetError(numb_b, "Field must be number!");
var logLine = DateTime.Now.ToString() + ": В поле B не число.";
var lineNoTime = "LAB2: В поле B не число.";
log.Add(logLine);
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB2: В поле B не число.");
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB2", lineNoTime);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
f_ok = false;
}
if (!IsDigitsOnly(numb_n.Text))
{
errorProvider1.SetError(numb_n, "Field must be number!");
var logLine = DateTime.Now.ToString() + ": В поле N не число.";
var lineNoTime = "LAB2: В поле N не число.";
log.Add(logLine);
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB2: В поле N не число.");
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB2", lineNoTime);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
f_ok = false;
}
if (!f_ok)
{
label5.Text = "?";
label7.Text = "?";
label9.Text = "?";
textBox_area.Text = "Error";
textBox_digits.Text = "Error";
textBox3.Text = "Error";
textBox4.Text = "Error";
textBox5.Text = "Error";
Invoke(new UpdateLogBoxDelegate(InvokeUpdateLogBox));
return;
}
errorProvider1.Clear();
//
if (numb_a.TextLength != 0)
{
label5.Text = numb_a.Text;
label7.Text = numb_a.Text;
}
if (numb_b.TextLength != 0)
{
label9.Text = numb_b.Text;
}
if (numb_a.TextLength != 0 && numb_b.TextLength != 0 && numb_n.TextLength != 0)
{
//1
int digits = 0;
for (int i = 0; i < numb_n.TextLength; i++)
{
if (int.Parse(numb_n.Text[i].ToString()) > int.Parse(numb_a.Text))
{
digits++;
}
}
textBox_digits.Text = digits.ToString();
//2
if (int.Parse(numb_a.Text) < int.Parse(numb_n.Text) && int.Parse(numb_n.Text) < int.Parse(numb_b.Text))
{
textBox_area.Text = "Да";
}
else
{
textBox_area.Text = "Нет";
}
//3
if (int.Parse(numb_n.Text) % 3 == 0)
{
textBox3.Text = "Да";
}
else
{
textBox3.Text = "Нет";
}
if (int.Parse(numb_n.Text) % 4 == 0)
{
textBox4.Text = "Да";
}
else
{
textBox4.Text = "Нет";
}
if (int.Parse(numb_n.Text) % 5 == 0)
{
textBox5.Text = "Да";
}
else
{
textBox5.Text = "Нет";
}
}
}
private void button4_Click(object sender, EventArgs e)
{
try
{
progress_steg.Visible = true;
progress_steg.Refresh();
label_progress.Visible = true;
label_progress.Refresh();
textBox_message.Text = "";
if (!File.Exists("tempImg.bmp"))
{
throw new Exception("Попытка расшифровки без загрузки стеганоконтейнера!");
}
container_bytes.Clear();
using (FileStream file = File.OpenRead("tempImg.bmp"))
{
BinaryReader binaryReader = new BinaryReader(file);
binaryReader.BaseStream.Position = 0;
byte[] tempBytes = binaryReader.ReadBytes((int)binaryReader.BaseStream.Length);
container_bytes.AddRange(tempBytes);
}
//reading headers
//Header-offset
int header_offset = (int)readHexReverse(container_bytes, 0x0D, 4);
//ImageSize (pixels)
int img_pixels = (int)readHexReverse(container_bytes, 0x25, 4);
img_pixels /= 3;
//ImageSize (pixels - msgLen)
int maxLen = (int)readHexReverse(container_bytes, 0x25, 4); //bytes
maxLen /= 3; //pixels
maxLen -= 2; //header 2 chars
maxLen = (int)Math.Floor((double)(maxLen / 16)); //chars in 2b
//Image width
int img_width = (int)readHexReverse(container_bytes, 0x15, 4);
//Image height
int img_height = (int)readHexReverse(container_bytes, 0x19, 4);
//Bit per pixel
int bit_per_pixel = (int)readHexReverse(container_bytes, 0x1D, 2);
int bytes_per_pixel = bit_per_pixel / 8;
//Compression
int img_compression = (int)readHexReverse(container_bytes, 0x21, 4);
if (img_compression != 0)
{
throw new Exception("Метод компрессии BMP не поддерживается!");
}
//padding calc
int delta = img_width % 4;
int padding_per_line = Convert.ToBoolean(delta) ? 4 - delta : 0;
//decoding
//read msglen
string msgBits = "";
for (int i = header_offset + 2; i < header_offset + 2 + (bytes_per_pixel * 16); i += bytes_per_pixel)
{
if (getBit((byte)container_bytes[i], 0))
{
msgBits += "1";
}
else
{
msgBits += "0";
}
}
msgBits = Reverse(msgBits);
int msgLen = binStringToInt(msgBits);
int msgBitsRead = 0;
int rank = -1;
bool doneMsg = false;
msgBits = "";
while (msgBitsRead < (msgLen * 8) + 16)
{
rank++;
int memoryPointer = header_offset + 2;
for (int i = 0; (i < img_height) && !doneMsg; i++) //height
{
for (int j = 0; (j < img_width) && !doneMsg; j++) //scans
{
if (getBit((byte)container_bytes[memoryPointer], rank))
{
msgBits += "1";
}
else
{
msgBits += "0";
}
msgBitsRead++;
memoryPointer += bytes_per_pixel;
if (msgBitsRead >= (msgLen * 8) + 16)
{
doneMsg = true;
break;
}
}
}
}
msgBits = msgBits.Substring(16);
/*for (int i = header_offset + 2 + (bytes_per_pixel * 16); i < header_offset + 2 + (bytes_per_pixel * 16) + (bytes_per_pixel * 8 * msgLen); i+= bytes_per_pixel)
* {
* if (getBit((byte)container_bytes[i], 0))
* msgBits += "1";
* else
* msgBits += "0";
* }*/
string tempChar = "";
for (int i = 0; i < msgBits.Length; i++)
{
tempChar += msgBits[i];
if ((i + 1) % (sizeof(char) * 8) == 0 && (i != 0))
{
char Symb = (char)binStringToInt(tempChar);
textBox_message.Text += Symb;
tempChar = "";
}
}
progress_steg.Visible = true;
progress_steg.Refresh();
label_progress.Visible = true;
label_progress.Refresh();
}
catch (Exception ex)
{
var logLine = DateTime.Now.ToString() + ": " + ex.Message;
log.Add(logLine);
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB2_TZSPD: " + ex.Message + Environment.NewLine);
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB2_TZSPD", "LAB2_TZSPD: " + ex.Message);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
Invoke(new UpdateLogBoxDelegate(InvokeUpdateLogBox));
MessageBox.Show(ex.Message, "Error.", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void button5_Click(object sender, EventArgs e)
{
try
{
/*container_bytes.Clear();
* if (Container.Image != null)
* {
* using (MemoryStream bits = new MemoryStream())
* {
* using (Bitmap bmp = new Bitmap(Container.Image.Width, Container.Image.Height, System.Drawing.Imaging.PixelFormat.Format24bppRgb))
* {
* using (Graphics g = Graphics.FromImage(bmp))
* {
* g.DrawImage(Container.Image, new Point(0, 0));
* }
* bmp.Save(bits, System.Drawing.Imaging.ImageFormat.Bmp);
* }
* //Container.Image.Save(bits, ImageFormat.Bmp);
* using (BinaryReader binaryReader = new BinaryReader(bits))
* {
* byte[] tempBytes = binaryReader.ReadBytes((int)binaryReader.BaseStream.Length);
* container_bytes.AddRange(tempBytes);
* }
* }
* }*/
if (int.Parse(textBox_maxMsgLen.Text) < textBox_message.TextLength)
{
MessageBox.Show("Размер сообщения слишком велик, будут задействованы более старшие биты.", "Info.", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
progress_steg.Visible = true;
progress_steg.Refresh();
label_progress.Visible = true;
label_progress.Refresh();
label_task.Visible = true;
label_task.Refresh();
if (SteganoContainer.Image != null)
{
SteganoContainer.Image.Dispose();
}
string msgBits = "";
int msgLenBytes = 0;
//message in binary
label_task.Text = "Подготовка";
label_task.Refresh();
for (int i = 0; i < textBox_message.TextLength; i++)
{
int progress = 100 * i / textBox_message.TextLength;
progress_steg.Value = progress;
label_progress.Text = progress.ToString() + " %";
string tempBin = "";
for (int j = 0; j < sizeof(char) * 8; j++)
{
if (getBit(textBox_message.Text[i], j))
{
tempBin += "1";
}
else
{
tempBin += "0";
}
}
for (int j = tempBin.Length - 1; j != -1; j--)
{
msgBits += tempBin[j];
}
}
msgLenBytes = msgBits.Length / 8;
string msgLenBytesBits = "";
//msgLen in binary
for (int i = 0; i < 16; i++)
{
if (getBit(msgLenBytes, i))
{
msgLenBytesBits += "1";
}
else
{
msgLenBytesBits += "0";
}
}
//reading headers
//Header-offset
int header_offset = (int)readHexReverse(container_bytes, 0x0D, 4);
//ImageSize (pixels)
int img_pixels = (int)readHexReverse(container_bytes, 0x25, 4);
img_pixels /= 3;
//Image width
int img_width = (int)readHexReverse(container_bytes, 0x15, 4);
//Image height
int img_height = (int)readHexReverse(container_bytes, 0x19, 4);
//Bit per pixel
int bit_per_pixel = (int)readHexReverse(container_bytes, 0x1D, 2);
int bytes_per_pixel = bit_per_pixel / 8;
//Compression
int img_compression = (int)readHexReverse(container_bytes, 0x21, 4);
if (img_compression != 0)
{
throw new Exception("Метод компрессии BMP не поддерживается!");
}
//padding calc
int delta = img_width % 4;
int padding_per_line = Convert.ToBoolean(delta) ? 4 - delta : 0;
//hiding
label_task.Text = "В процессе";
label_task.Refresh();
string combinedMsg = msgLenBytesBits + msgBits;
int messagePointer = 0;
int rank = -1;
bool doneMsg = false;
while (messagePointer < combinedMsg.Length)
{
rank++;
int pixelMemoryPointer = header_offset + 2; //To set to LSB
for (int i = 0; (i < img_height) && !doneMsg; i++) //height
{
for (int j = 0; (j < img_width) && !doneMsg; j++) //scans
{
int progress = (100 * messagePointer / msgBits.Length);
if (progress <= 100)
{
progress_steg.Value = progress;
}
progress_steg.Refresh();
label_progress.Text = (progress > 100?100:progress).ToString() + " %";
label_progress.Refresh();
//3 bytes per pixel
if (combinedMsg[messagePointer] == '1' && !getBit((byte)container_bytes[pixelMemoryPointer], rank))
{
//increment
byte temp = (byte)container_bytes[pixelMemoryPointer];
temp++;
container_bytes.RemoveAt(pixelMemoryPointer);
container_bytes.Insert(pixelMemoryPointer, temp);
}
else if (combinedMsg[messagePointer] == '0' && getBit((byte)container_bytes[pixelMemoryPointer], rank))
{
//decrement
byte temp = (byte)container_bytes[pixelMemoryPointer];
temp--;
container_bytes.RemoveAt(pixelMemoryPointer);
container_bytes.Insert(pixelMemoryPointer, temp);
}
messagePointer++;
if (messagePointer >= combinedMsg.Length)
{
doneMsg = true;
}
pixelMemoryPointer += bytes_per_pixel;
}
pixelMemoryPointer += padding_per_line;
}
}
using (FileStream tempImg = File.Create("tempImg.bmp"))
{
foreach (byte b in container_bytes)
{
tempImg.WriteByte(b);
}
}
Image img;
using (var bmpTemp = new Bitmap("tempImg.bmp"))
{
img = new Bitmap(bmpTemp);
}
SteganoContainer.Image = img;
progress_steg.Visible = true;
progress_steg.Refresh();
label_progress.Visible = true;
label_progress.Refresh();
label_task.Visible = false;
label_task.Refresh();
}
catch (Exception ex)
{
var logLine = DateTime.Now.ToString() + ": " + ex.Message;
log.Add(logLine);
File.AppendAllText(Directory.GetCurrentDirectory() + "\\global_log.log", DateTime.Now.ToString() + ": LAB2_TZSPD: " + ex.Message + Environment.NewLine);
try
{
var time_ms = MSSQL_logging.log_error_onTimer(DateTime.Now, "LAB2_TZSPD", "LAB2_TZSPD: " + ex.Message);
toolStripStatusLabel1.Text = "Логирование выполнено за " + time_ms + "мс";
}
catch { }
Invoke(new UpdateLogBoxDelegate(InvokeUpdateLogBox));
MessageBox.Show(ex.Message, "Error.", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}
private void button1_Click(object sender, EventArgs e)
{
try
{
string host = textBox_host.Text;
string port = textBox_port.Text;
//resolving host string
string hostString = "tcp:" + host;
if (port != "Default" && port != "")
{
hostString += ", " + port;
}
string getLoginsLogin = "******";
string getLoginsPassw = "ceb3478&Bc23b2&";
Microsoft.Data.SqlClient.SqlConnectionStringBuilder extractLoginsConnBuilder = new Microsoft.Data.SqlClient.SqlConnectionStringBuilder();
extractLoginsConnBuilder.DataSource = hostString;
extractLoginsConnBuilder.ConnectTimeout = 10;
extractLoginsConnBuilder.UserID = getLoginsLogin;
extractLoginsConnBuilder.Password = getLoginsPassw;
extractLoginsConnBuilder.Authentication = Microsoft.Data.SqlClient.SqlAuthenticationMethod.SqlPassword;
extractLoginsConnBuilder.IntegratedSecurity = false;
extractLoginsConnBuilder.TrustServerCertificate = true;
string queryString = "select * from logins";
StringBuilder errorMessages = new StringBuilder();
int user_id = 0;
using (Microsoft.Data.SqlClient.SqlConnection connection1 = new Microsoft.Data.SqlClient.SqlConnection(extractLoginsConnBuilder.ConnectionString))
{
Microsoft.Data.SqlClient.SqlCommand command1 = new Microsoft.Data.SqlClient.SqlCommand(queryString, connection1);
try
{
command1.Connection.Open();
command1.ExecuteNonQuery();
var reader = command1.ExecuteReader();
if (!reader.HasRows)
{
throw new Exception("Provided login not found or password is incorrect");
}
string login = textBox_login.Text;
string password = textBox_password.Text;
string hash = MathOperations.sha256(password);
bool login_in = false;
while (reader.Read())
{
if (reader.GetString(1) == login && reader.GetString(2) == hash)
{
user_id = reader.GetInt32(0);
login_in = true;
}
}
reader.Close();
command1.Connection.Close();
if (!login_in)
{
throw new Exception("Provided login not found or password is incorrect");
}
}
catch (Microsoft.Data.SqlClient.SqlException ex)
{
for (int i = 0; i < ex.Errors.Count; i++)
{
errorMessages.Append("Index #" + i + "\n" +
"Message: " + ex.Errors[i].Message + "\n" +
"LineNumber: " + ex.Errors[i].LineNumber + "\n" +
"Source: " + ex.Errors[i].Source + "\n" +
"Procedure: " + ex.Errors[i].Procedure + "\n");
}
throw new Exception(errorMessages.ToString());
}
}
string basicLogin = "******";
string basicPassw = "n3i7A7834bo&T21h@tbn";
extractLoginsConnBuilder.UserID = basicLogin;
extractLoginsConnBuilder.Password = basicPassw;
queryString = "select * from keys";
Microsoft.Data.SqlClient.SqlConnection connection = new Microsoft.Data.SqlClient.SqlConnection(extractLoginsConnBuilder.ConnectionString);
Microsoft.Data.SqlClient.SqlCommand command = new Microsoft.Data.SqlClient.SqlCommand(queryString, connection);
try
{
command.Connection.Open();
command.ExecuteNonQuery();
//check if user has key
var reader = command.ExecuteReader();
bool has_key = false;
while (reader.Read())
{
if (reader.GetInt32(0) == user_id)
{
has_key = true;
}
}
reader.Close();
if (!has_key)
{
MessageBox.Show("Ключ не найден. Сейчас будет сгенерирован новый ключ и добавлен в базу данных.", "Внимание", MessageBoxButtons.OK, MessageBoxIcon.Warning);
var aesInst = System.Security.Cryptography.Aes.Create();
var privkey = aesInst.Key;
var iv = aesInst.IV;
var privKeysha256 = MathOperations.sha256_byte(textBox_password.Text);
var ivmd5 = MathOperations.md5_byte(textBox_password.Text);
//enc private key with sha256(pwd) and md5(pwd)
aesInst.Key = privKeysha256;
aesInst.IV = ivmd5;
var Encrypted_SK = aesInst.CreateEncryptor().TransformFinalBlock(privkey, 0, privkey.Length);
string Encrypted_SK_String_HEX = "0x";
foreach (byte part in Encrypted_SK)
{
Encrypted_SK_String_HEX += part.ToString("X2");
}
var Encrypted_IV = aesInst.CreateEncryptor().TransformFinalBlock(iv, 0, iv.Length);
string Encrypted_IV_String_HEX = "0x";
foreach (byte part in Encrypted_IV)
{
Encrypted_IV_String_HEX += part.ToString("X2");
}
queryString = "insert into keys values (" + user_id.ToString() + ", " + Encrypted_SK_String_HEX + ", " + Encrypted_IV_String_HEX + ")";
Microsoft.Data.SqlClient.SqlCommand command_newkey = new Microsoft.Data.SqlClient.SqlCommand(queryString, connection);
//command.Connection.Open();
command_newkey.ExecuteNonQuery();
command_newkey.Connection.Close();
}
//save session data
MSSQL_logging.user_id = user_id;
MSSQL_logging.userpassword = textBox_password.Text;
MSSQL_logging.database_connection = connection;
MSSQL_logging.GetPrivateKeyFromDB();
command.Connection.Close();
//open start panel
this.Hide();
var form_start = new Form_start();
form_start.Closed += (s, args) => this.Close();
form_start.Show();
}
catch (Microsoft.Data.SqlClient.SqlException ex)
{
for (int i = 0; i < ex.Errors.Count; i++)
{
errorMessages.Append("Index #" + i + "\n" +
"Message: " + ex.Errors[i].Message + "\n" +
"LineNumber: " + ex.Errors[i].LineNumber + "\n" +
"Source: " + ex.Errors[i].Source + "\n" +
"Procedure: " + ex.Errors[i].Procedure + "\n");
}
throw new Exception(errorMessages.ToString());
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
}
}