static void DoInitialize ()
{
#if !ANDROID
var userPath = MX.X509StoreManager.NewCurrentUserPath;
userTrustedRootPath = Path.Combine (userPath, MX.X509Stores.Names.TrustedRoot);
userIntermediateCAPath = Path.Combine (userPath, MX.X509Stores.Names.IntermediateCA);
userUntrustedPath = Path.Combine (userPath, MX.X509Stores.Names.Untrusted);
var machinePath = MX.X509StoreManager.NewLocalMachinePath;
machineTrustedRootPath = Path.Combine (machinePath, MX.X509Stores.Names.TrustedRoot);
machineIntermediateCAPath = Path.Combine (machinePath, MX.X509Stores.Names.IntermediateCA);
machineUntrustedPath = Path.Combine (machinePath, MX.X509Stores.Names.Untrusted);
#endif
}