// mutable props
private void Authenticate()
{
if (_ySignedState == 0)
{
var yAlg = SysProps.GetValue(SysPropName.YAlg, 0);
var yski = SysProps.GetValue <string>(SysPropName.YSKI, null);
if ((yAlg > 0) && (yski != null))
{
if (_cryptoManager.VerifySignature(yski, YData, YSign))
{
_ySignedState = 1; // success
}
}
else
{
// cannot authenticate
_ySignedState = -1;
}
}
}