/**
* @param int|string $tweak
* @return PublicKeyInterface
*/
public function tweakAdd($tweak)
{
$adapter = $this->ecAdapter;
$offset = $adapter->getGenerator()->mul($tweak);
$newPoint = $this->point->add($offset);
return $adapter->getPublicKey($newPoint, $this->compressed);
}
/**
* {@inheritDoc}
* @see \Mdanter\Ecc\EcMathInterface::add()
*/
public function add($addend)
{
$type = $this->identify($addend);
if ($this->dataType == 'point' && $type == 'point') {
$this->data = $this->data->add($addend);
return $this;
}
if ($this->dataType == 'int' && $type == 'int') {
$this->data = $this->modMath->add($this->data, $addend);
return $this;
}
$this->handleOppositeTypes($addend, function (PointInterface $data, $addendInt) {
// Multiply by generator and return a regular point to add to $data
$point = $this->generator->mul($addendInt);
//$point = $this->generator->getCurve()->getPoint($point->getX(), $point->getY(), $this->generator->getOrder());
return $data->add($point);
});
return $this;
}
