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<?php |
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declare(strict_types=1); |
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namespace Mdanter\Ecc; |
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use Mdanter\Ecc\Crypto\Signature\Signer; |
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use Mdanter\Ecc\Curves\NistCurve; |
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use Mdanter\Ecc\Curves\SecgCurve; |
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use Mdanter\Ecc\Math\GmpMathInterface; |
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use Mdanter\Ecc\Math\MathAdapterFactory; |
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use Mdanter\Ecc\Primitives\CurveFp; |
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use Mdanter\Ecc\Primitives\CurveFpInterface; |
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use Mdanter\Ecc\Primitives\CurveParameters; |
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/** |
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* Static factory class providing factory methods to work with NIST and SECG recommended curves. |
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*/ |
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class EccFactory |
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{ |
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/** |
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* Selects and creates the most appropriate adapter for the running environment. |
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* |
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* @param bool $debug [optional] Set to true to get a trace of all mathematical operations |
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* |
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* @throws \RuntimeException |
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* @return GmpMathInterface |
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*/ |
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public static function getAdapter(bool $debug = false): GmpMathInterface |
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{ |
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return MathAdapterFactory::getAdapter($debug); |
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} |
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/** |
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* Returns a factory to create NIST Recommended curves and generators. |
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* |
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* @param GmpMathInterface $adapter [optional] Defaults to the return value of EccFactory::getAdapter(). |
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* @return NistCurve |
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*/ |
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public static function getNistCurves(GmpMathInterface $adapter = null): NistCurve |
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{ |
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return new NistCurve($adapter ?: self::getAdapter()); |
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} |
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/** |
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* Returns a factory to return SECG Recommended curves and generators. |
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* |
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* @param GmpMathInterface $adapter [optional] Defaults to the return value of EccFactory::getAdapter(). |
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* @return SecgCurve |
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*/ |
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public static function getSecgCurves(GmpMathInterface $adapter = null): SecgCurve |
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{ |
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return new SecgCurve($adapter ?: self::getAdapter()); |
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} |
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/** |
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* Creates a new curve from arbitrary parameters. |
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* |
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* @param int $bitSize |
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* @param \GMP $prime |
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* @param \GMP $a |
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* @param \GMP $b |
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* @param GmpMathInterface $adapter [optional] Defaults to the return value of EccFactory::getAdapter(). |
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* @return CurveFpInterface |
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*/ |
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public static function createCurve(int $bitSize, \GMP $prime, \GMP $a, \GMP $b, GmpMathInterface $adapter = null): CurveFpInterface |
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{ |
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return new CurveFp(new CurveParameters($bitSize, $prime, $a, $b), $adapter ?: self::getAdapter()); |
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} |
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/** |
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* @param GmpMathInterface $adapter [optional] Defaults to the return value of EccFactory::getAdapteR() |
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* @return Signer |
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*/ |
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public static function getSigner(GmpMathInterface $adapter = null): Signer |
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{ |
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return new Signer($adapter ?: self::getAdapter()); |
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} |
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} |
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shanecurran /
phpecc
