private void DecryptWorker(object sender, DoWorkEventArgs e)
{
time1 = DateTime.Now;
fileprocessresult = -1;
fileprocessresult = decryption.Decrypt(inFilePath, outFilePath);
decryption = null;
}
private void RealTimeDecryptActivation(object sender, RoutedEventArgs e)
{
try
{
if (privateKeyFilePathTextBox.Text != "")
{
decryption = new Decryption(File.ReadAllText(privateKeyFilePathTextBox.Text));
}
else
{
decryption = null;
}
}
catch (FileNotFoundException)
{
}
catch (Exception error)
{
MessageBox.Show(error.ToString());
}
}
private void Decrypt(object sender, RoutedEventArgs e)
{
try
{
if (privateKeyFilePathTextBox.Text == "")
{
throw new ArgumentException("私钥文件路径为空！");
}
if (!File.Exists(privateKeyFilePathTextBox.Text))
{
throw new ArgumentException("私钥文件不存在！");
}
statusBar.Visibility = Visibility.Visible;
statusBarTextBlock.Text = "读取私钥文件";
decryption = new Decryption(File.ReadAllText(privateKeyFilePathTextBox.Text));
if (decryptionTypeComboBox.SelectedIndex == 0)
{
if (encryptedtextTextBox.Text == "")
{
throw new ArgumentException("密文为空！");
}
if ((encryptedtextTextBox.Text.Trim().Length - 58) % 32 != 0)
{
throw new ArgumentException("密文格式错误！");
}
int encryptedlength = encryptedtextTextBox.Text.Trim().Length >> 1;
byte[] encrypted = new byte[encryptedlength];
for (int i = 0; i < encryptedlength; i++)
{
encrypted[i] = Byte.Parse(encryptedtextTextBox.Text.Trim().Substring(i * 2, 2), System.Globalization.NumberStyles.AllowHexSpecifier);
}
byte[] decrypted = decryption.Decrypt(encrypted);
if (decryption.flag == 0)
{
decryptedtextTextBox.Text = Encoding.Default.GetString(decrypted);
statusBar.Visibility = Visibility.Collapsed;
statusBarTextBlock.Text = "";
MessageBox.Show("解密完成");
}
else if (decryption.flag == 1)
{
decryptedtextTextBox.Text = "";
statusBar.Visibility = Visibility.Collapsed;
statusBarTextBlock.Text = "";
MessageBox.Show("加密数据已损坏！");
}
else if (decryption.flag == 2)
{
decryptedtextTextBox.Text = "";
statusBar.Visibility = Visibility.Collapsed;
statusBarTextBlock.Text = "";
MessageBox.Show("私钥文件不匹配！");
}
decryption = null;
}
else if (decryptionTypeComboBox.SelectedIndex == 1)
{
if (encryptedFilePathTextBox.Text == "")
{
throw new ArgumentException("加密文件路径为空！");
}
if (decryptedFilePathTextBox.Text == "")
{
throw new ArgumentException("解密文件保存路径为空！");
}
if (!File.Exists(encryptedFilePathTextBox.Text))
{
throw new ArgumentException("加密文件不存在！");
}
if (File.Exists(decryptedFilePathTextBox.Text))
{
if (new FileInfo(decryptedFilePathTextBox.Text).IsReadOnly)
{
throw new ArgumentException("解密文件只读，无法覆盖！");
}
}
inFilePath = encryptedFilePathTextBox.Text;
outFilePath = decryptedFilePathTextBox.Text;
datasize = 0;
statusBarTextBlock.Text = "解密文件中...";
if (decryptworker.IsBusy != true)
{
decryptworker.RunWorkerAsync();
}
else
{
MessageBox.Show("上一个解密操作尚未完成！");
}
}
}
catch (ArgumentException error)
{
statusBar.Visibility = Visibility.Collapsed;
statusBarTextBlock.Text = "";
MessageBox.Show(error.Message.ToString());
}
catch (FileNotFoundException error)
{
statusBar.Visibility = Visibility.Collapsed;
statusBarTextBlock.Text = "";
MessageBox.Show(error.Message.ToString());
}
catch (UnauthorizedAccessException error)
{
MessageBox.Show(error.Message.ToString());
}
catch (Exception error)
{
MessageBox.Show(error.ToString());
}
}