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));
}
/**
*
* @dataProvider getAdapters
*/
public function testInfinity(MathAdapterInterface $math)
{
$c = new CurveFp(23, 1, 1, $math);
$g = $c->getPoint(13, 7, 7);
$check = $c->getInfinity();
for ($i = 0; $i < 8; $i++) {
$mul = $i % 7;
$p = $g->mul($mul);
$this->assertTrue($check->equals($p), "{$g} * {$mul} = {$p}, expected {$check}");
$check = $g->add($check);
}
}
