protected override IAsyncResult BeginExecute(AsyncCodeActivityContext context, AsyncCallback callback, object state)
{
authUrl = AuthenticationUrl.Get(context);
authMethod = AuthenticationMethod.Get(context);
authBrowser = AuthenticationBrowser.Get(context);
email = Email.Get(context);
if (authMethod != "Manual" && email == null)
{
throw new ArgumentException("Email must be supplied with Automatic Authorization");
}
passwordInsecure = PasswordInsecure.Get(context);
if (authMethod == "Insecure" && passwordInsecure == null)
{
throw new ArgumentException("Insecure Password must be supplied with Insecure Authentication");
}
passwordSecure = PasswordSecure.Get(context);
if (authMethod == "Secure" && passwordSecure == null)
{
throw new ArgumentException("Secure Password must be supplied with Secure Authentication");
}
browserLoadTimeout = BrowserLoadTimeout.Get(context);
if (browserLoadTimeout == 0)
{
browserLoadTimeout = BrowserLoadTimeoutDefault;
}
BuildDefaultAuthUrl(context);
BuildUrlAndFilename();
BuildAuthArguments();
LoadFileDelegate = new Action(LoadFile);
return(LoadFileDelegate.BeginInvoke(callback, state));
}
private void ClearKey()
{
if (key != null)
{
key.Dispose();
key = null;
}
clearRecords();
}
public string decrypt(string base64str, PasswordSecure pwd = null)
{
if (pwd == null)
{
pwd = key;
}
var sha = new SHA3(base64str.Length);
var openKey = pwd.getObjectValue();
var crypted = sha.multiDecryptLZMA(Convert.FromBase64String(base64str), openKey);
BytesBuilder.BytesToNull(openKey);
var result = new UTF32Encoding().GetString(crypted); //Convert.ToBase64String(crypted);
BytesBuilder.ToNull(crypted);
return(result);
}
public void SetPassword(string pass, string index)
{
using (var con = new SqlConnection(builder.ConnectionString))
using (var com = new SqlCommand())
{
com.Connection = con;
con.Open();
com.CommandText = "Update Student set Password=@Password, Salt=@Salt WHERE IndexNumber=@IndexNumber";
var coder = PasswordSecure.CoderCreator();
var hashedPassword = SecurePassword.Create(pass, salt);
com.Parameters.AddWithValue("Password", hashedPassword);
com.Parameters.AddWithValue("Salt", coder);
com.Parameters.AddWithValue("IndexNumber", index);
var dr = com.ExecuteNonQuery();
}
}
public string crypt(string str, PasswordSecure pwd = null)
{
if (pwd == null)
{
pwd = key;
}
var sha = new SHA3(str.Length);
if (random == null)
{
var inits = str + DateTime.Now.ToString("r");
var t = new UTF32Encoding().GetBytes(inits);
var bbi = new BytesBuilder();
bbi.add(t);
bbi.add(sha.CreateInitVector(0, 64, 40));
var init = bbi.getBytes();
random = new SHA3.SHA3Random(init);
bbi.clear();
BytesBuilder.ClearString(inits);
BytesBuilder.ToNull(init);
}
var bytes = new UTF32Encoding().GetBytes(str);
var openKey = pwd.getObjectValue();
var crypted = sha.multiCryptLZMA(bytes, openKey, null, 22, false);
BytesBuilder.BytesToNull(openKey);
BytesBuilder.BytesToNull(bytes);
BytesBuilder.ClearString(str);
return(Convert.ToBase64String(crypted));
}
private void recryptFile()
{
DoublePasswordForm pwdForm1, pwdForm2 = null;
bool isSuccess = false;
do
{
pwdForm1 = new DoublePasswordForm(1);
pwdForm1.ShowDialog();
if (pwdForm1.resultText == null)
{
return;
}
if (pwdForm1.resultText.Length < 6)
{
MessageBox.Show("Извините, но введённый текст настолько мал, что не может являться паролем", "Шифрование", MessageBoxButtons.OK, MessageBoxIcon.Stop);
continue;
}
if (pwdForm1.fromFile)
{
break;
}
pwdForm2 = new DoublePasswordForm(2);
pwdForm2.ShowDialog();
if (pwdForm2.cancel)
{
pwdForm1.clearResultText();
return;
}
if (!String.IsNullOrEmpty(pwdForm2.resultText) && pwdForm1.resultText != pwdForm2.resultText)
{
pwdForm1.clearResultText();
pwdForm2.clearResultText();
if (MessageBox.Show("Введённые пароли не равны друг другу\r\nХотите попробовать ещё раз?", "Шифрование", MessageBoxButtons.YesNo) != System.Windows.Forms.DialogResult.Yes)
{
return;
}
}
else
{
isSuccess = true;
}
}while (!isSuccess);
byte[] newKey1;
Form1.GetKeyByPassword(pwdForm1, out newKey1, 10);
pwdForm1.clearResultText();
pwdForm2.clearResultText();
var sha = new SHA3(0);
var newKey = new PasswordSecure(newKey1);
foreach (var record in records)
{
record.Value.pwd = crypt(decrypt(record.Value.pwd), newKey);
record.Value.crypt = crypt(decrypt(record.Value.crypt), newKey);
}
ClearKey();
key = newKey;
recordsToFile();
}
void cnt_closedEventDecrypt(Form1.OpenFileDialogContext context, bool isOK)
{
if (!isOK)
{
return;
}
toStart:
DoublePasswordForm pwdForm1, pwdForm2 = null;
bool isSuccess = false;
do
{
pwdForm1 = new DoublePasswordForm(1, Path.GetFileName(context.dialog.FileName));
pwdForm1.ShowDialog();
if (pwdForm1.resultText == null)
{
return;
}
if (pwdForm1.resultText.Length < 6)
{
MessageBox.Show("Извините, но введённый текст настолько мал, что не может являться паролем", "Шифрование", MessageBoxButtons.OK, MessageBoxIcon.Stop);
continue;
}
if (pwdForm1.fromFile)
{
break;
}
pwdForm2 = new DoublePasswordForm(2, Path.GetFileName(context.dialog.FileName));
pwdForm2.ShowDialog();
if (pwdForm2.cancel)
{
pwdForm1.clearResultText();
return;
}
if (!String.IsNullOrEmpty(pwdForm2.resultText) && pwdForm1.resultText != pwdForm2.resultText)
{
pwdForm1.clearResultText();
pwdForm2.clearResultText();
if (MessageBox.Show("Введённые пароли не равны друг другу\r\nХотите попробовать ещё раз?", "Шифрование", MessageBoxButtons.YesNo) != System.Windows.Forms.DialogResult.Yes)
{
return;
}
}
else
{
isSuccess = true;
}
}while (!isSuccess);
ClearKey();
ClearWindow();
byte[] key1;
Form1.GetKeyByPassword(pwdForm1, out key1, 22);
pwdForm1.clearResultText();
pwdForm2.clearResultText();
var sha = new SHA3(0);
var fi = new FileInfo(context.dialog.FileName);
fileName = fi.FullName;
if (!fi.Exists)
{
var newBytes = sha.multiCryptLZMA(new byte[0], key1, null, 12, false, 0, SHA3.getHashCountForMultiHash() - 8);
File.WriteAllBytes(fileName, newBytes);
}
try
{
var openFile = File.ReadAllBytes(fileName);
var decryptedFile = sha.multiDecryptLZMA(openFile, key1);
if (decryptedFile == null)
{
MessageBox.Show("Файл расшифровать не удалось");
BytesBuilder.BytesToNull(key1);
goto toStart;
}
this.key = new PasswordSecure(key1);
var str = Encoding.UTF32.GetString(decryptedFile);
BytesBuilder.ToNull(openFile);
BytesBuilder.ToNull(decryptedFile);
GetRecordsFromFile(str);
BytesBuilder.ClearString(str);
}
catch (Exception e)
{
MessageBox.Show("Расшифрование не удалось! " + e.Message, "Расшифрование не удалось", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
return;
}
SetTagsAndMainTags();
}