public function testAddInfinityReturnsOriginalPoint()
{
$adapter = new Gmp();
$curve = new CurveFp(23, 1, 1, $adapter);
$infinity = $curve->getInfinity();
$point = new Point($adapter, $curve, 13, 7, 7);
$sum = $point->add($infinity);
$this->assertTrue($point->equals($sum));
$sum = $infinity->add($point);
$this->assertTrue($point->equals($sum));
}
/**
* @param MathAdapterInterface $adapter
* @param CurveFpInterface $curve
* @param int|string $x
* @param int|string $y
* @param null $order
* @param RandomNumberGeneratorInterface $generator
*/
public function __construct(MathAdapterInterface $adapter, CurveFpInterface $curve, $x, $y, $order = null, RandomNumberGeneratorInterface $generator = null)
{
$this->generator = $generator ?: RandomGeneratorFactory::getRandomGenerator();
parent::__construct($adapter, $curve, $x, $y, $order);
}
/**
* Take X, Y, and a generator point, and we can get what we need!
*
* @param Math $math
* @param GeneratorPoint $generator
* @param int|string $x
* @param int|string $y
*/
public function __construct(Math $math, GeneratorPoint $generator, $x, $y)
{
parent::__construct($math, $generator->getCurve(), $x, $y, $generator->getOrder());
}