private void OpenPemFile()
{
Stream stream = openFileDialog.OpenFile();
byte[] data = new byte[stream.Length];
stream.Read(data, 0, data.Length);
currentFileName = openFileDialog.FileName;
currentFileSize = stream.Length;
stream.Close();
string dataStr = Asn1Util.BytesToString(data);
if (Asn1Util.IsPemFormated(dataStr))
{
currentFormat = DataFormat.PEM;
pemHeader = Asn1Util.GetPemHeader(dataStr);
}
else if (Asn1Util.IsHexStr(dataStr))
{
currentFormat = DataFormat.HEX;
}
else
{
currentFormat = DataFormat.BASE64;
}
richTextBox.Text = dataStr;
SetButtons();
currentFileName = openFileDialog.FileName;
ShowFileName();
}
public byte[] ChangeDataFormat(DataFormat dataFormat)
{
byte[] data = null;
dataStr = richTextBox.Text;
string msg = "";
try
{
switch (currentFormat)
{
case DataFormat.BASE64:
msg = "BASE64";
data = Convert.FromBase64String(dataStr);
break;
case DataFormat.HEX:
msg = "Hex";
data = Asn1Util.HexStrToBytes(dataStr);
break;
case DataFormat.PEM:
msg = "PEM";
data = Asn1Util.PemToBytes(dataStr);
pemHeader = Asn1Util.GetPemHeader(dataStr);
break;
}
}
catch (Exception ex)
{
MessageBox.Show("Invalid " + msg + " data: " + ex.Message);
return(data);
}
switch (dataFormat)
{
case DataFormat.BASE64:
dataStr = Convert.ToBase64String(data);
dataStr = Asn1Util.FormatString(dataStr, base64LineLen, 0);
break;
case DataFormat.HEX:
dataStr = Asn1Util.ToHexString(data);
dataStr = Asn1Util.FormatString(dataStr, hexLineLen, 2);
break;
case DataFormat.PEM:
dataStr = Asn1Util.BytesToPem(data, pemHeader);
break;
}
currentFormat = dataFormat;
richTextBox.Text = dataStr;
SetButtons();
richTextBox.Focus();
return(data);
}
