/**
* @param PointInterface $point
* @return string
*/
public function serialize(PointInterface $point)
{
$length = CurveOidMapper::getByteSize($point->getCurve()) * 2;
if ($this->debug) {
error_log('Detected length: ' . $length);
error_log('Unpadded:' . $this->adapter->decHex($point->getX()));
error_log('Unpadded len:' . strlen($this->adapter->decHex($point->getX())));
error_log('Padded: ' . str_pad($this->adapter->decHex($point->getX()), $length, '0', STR_PAD_LEFT));
}
$hexString = '04';
$hexString .= str_pad($this->adapter->decHex($point->getX()), $length, '0', STR_PAD_LEFT);
$hexString .= str_pad($this->adapter->decHex($point->getY()), $length, '0', STR_PAD_LEFT);
if ($this->debug) {
error_log('Resulting length: ' . strlen($hexString));
error_log('Hex: ' . $hexString);
}
return $hexString;
}
/**
* {@inheritDoc}
* @see \Mdanter\Ecc\PointInterface::cmp()
*/
public function cmp(PointInterface $other)
{
if ($other->isInfinity() && $this->isInfinity()) {
return 0;
}
if ($other->isInfinity() || $this->isInfinity()) {
return 1;
}
$math = $this->adapter;
$equal = $math->cmp($this->x, $other->getX()) == 0;
$equal &= $math->cmp($this->y, $other->getY()) == 0;
$equal &= $this->isInfinity() == $other->isInfinity();
$equal &= $this->curve->equals($other->getCurve());
if ($equal) {
return 0;
}
return 1;
}
