protected void InitalizeCrypting()
{
publicKeyLen_ = 0;
Array.Clear(publicKey_, 0, 80); // not really needed; better for debugging tho
signkey_ = null;
if (!MuleApplication.Instance.Preference.IsSecureIdentEnabled)
{
return;
}
// check if keyfile is there
bool bCreateNewKey = false;
string filename =
System.IO.Path.Combine(MuleApplication.Instance.Preference.GetMuleDirectory(Mule.Preference.DefaultDirectoryEnum.EMULE_CONFIGDIR),
"crytkey.dat");
if (System.IO.File.Exists(filename))
{
FileInfo info = new FileInfo(filename);
if (info.Length == 0)
{
bCreateNewKey = true;
}
}
else
{
bCreateNewKey = true;
}
if (bCreateNewKey)
{
CreateKeyPair();
}
// load key
try
{
string keyText = System.IO.File.ReadAllText(filename);
byte[] key = Convert.FromBase64String(keyText);
// load private key
signkey_ = MpdObjectManager.CreateRSAPKCS1V15SHA1Signer(key);
RSACryptoServiceProvider rsa = new RSACryptoServiceProvider((int)MuleConstants.RSAKEYSIZE);
rsa.ImportCspBlob(key);
byte[] tmp = rsa.ExportCspBlob(false);
Array.Copy(tmp, publicKey_, tmp.Length);
publicKeyLen_ = (byte)tmp.Length;
}
catch (Exception ex)
{
signkey_ = null;
MpdUtilities.DebugLogError(ex);
}
}