/**
* @param string $name
* @return bool
*/
public function checkCurveSupported($name)
{
try {
CurveFactory::getCurveByName($name);
return true;
} catch (\Exception $e) {
return false;
}
}
/**
* @param string $curveName
* @return \Mdanter\Ecc\Curves\NamedCurveFp|\Mdanter\Ecc\Primitives\CurveFp|\Mdanter\Ecc\Primitives\CurveFpInterface
*/
public static function curve($curveName)
{
switch ($curveName) {
case NistCurve::NAME_P256:
case NistCurve::NAME_P384:
case NistCurve::NAME_P521:
return CurveFactory::getCurveByName($curveName);
default:
throw new \InvalidArgumentException('Unknown or unsupported curve');
}
}
/**
* @param MathAdapterInterface|null $adapter
* @param string $curveName
* @param string $hashAlgorithm
* @return EcDomain
*/
public static function getDomain(MathAdapterInterface $adapter, $curveName, $hashAlgorithm)
{
$adapter = $adapter ?: EccFactory::getAdapter();
return new EcDomain($adapter, CurveFactory::getCurveByName($curveName), CurveFactory::getGeneratorByName($curveName), new Hasher($adapter, $hashAlgorithm));
}
