public async Task Decrypte()
{
if (txtPrivateKey.Text == "")
{
await ShowError("请输入私钥！");
return;
}
byte[] value = await CheckDecrypte(txtResult.Text);
if (value != null)
{
byte[] result = null;
string key = txtPrivateKey.Text;
bool oaep = cbbPadding.SelectedIndex == 1;
int keyLength = KeyLength;
await Task.Run(() =>
result = RsaHelper.Decrypte(
value,
key,
keyLength,
oaep));
txtSource.Text = await GetString(result, BinaryInputMode);
}
}