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<?php |
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declare(strict_types=1); |
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namespace Mdanter\Ecc\Serializer\Util; |
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use FG\ASN1\Universal\ObjectIdentifier; |
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use Mdanter\Ecc\Curves\NamedCurveFp; |
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use Mdanter\Ecc\Curves\CurveFactory; |
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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\Exception\UnsupportedCurveException; |
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use Mdanter\Ecc\Primitives\CurveFpInterface; |
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use Mdanter\Ecc\Primitives\GeneratorPoint; |
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class CurveOidMapper |
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{ |
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const NIST_P192_OID = '1.2.840.10045.3.1.1'; |
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const NIST_P224_OID = '1.3.132.0.33'; |
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const NIST_P256_OID = '1.2.840.10045.3.1.7'; |
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const NIST_P384_OID = '1.3.132.0.34'; |
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const NIST_P521_OID = '1.3.132.0.35'; |
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const SECP_112R1_OID = '1.3.132.0.6'; |
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const SECP_192K1_OID = '1.3.132.0.31'; |
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const SECP_256K1_OID = '1.3.132.0.10'; |
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const SECP_256R1_OID = '1.2.840.10045.3.1.7'; |
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const SECP_384R1_OID = '1.3.132.0.34'; |
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/** |
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* @var array |
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*/ |
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private static $oidMap = array( |
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NistCurve::NAME_P192 => self::NIST_P192_OID, |
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NistCurve::NAME_P224 => self::NIST_P224_OID, |
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NistCurve::NAME_P256 => self::NIST_P256_OID, |
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NistCurve::NAME_P384 => self::NIST_P384_OID, |
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NistCurve::NAME_P521 => self::NIST_P521_OID, |
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SecgCurve::NAME_SECP_112R1 => self::SECP_112R1_OID, |
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SecgCurve::NAME_SECP_192K1 => self::SECP_192K1_OID, |
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SecgCurve::NAME_SECP_256K1 => self::SECP_256K1_OID, |
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SecgCurve::NAME_SECP_256R1 => self::SECP_256R1_OID, |
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SecgCurve::NAME_SECP_384R1 => self::SECP_384R1_OID, |
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); |
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/** |
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* @var array |
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*/ |
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private static $sizeMap = array( |
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NistCurve::NAME_P192 => 24, |
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NistCurve::NAME_P224 => 28, |
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NistCurve::NAME_P256 => 32, |
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NistCurve::NAME_P384 => 48, |
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NistCurve::NAME_P521 => 66, |
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SecgCurve::NAME_SECP_112R1 => 14, |
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SecgCurve::NAME_SECP_192K1 => 24, |
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SecgCurve::NAME_SECP_256K1 => 32, |
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SecgCurve::NAME_SECP_256R1 => 32, |
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SecgCurve::NAME_SECP_384R1 => 48, |
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); |
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/** |
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* @return array |
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*/ |
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public static function getNames(): array |
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{ |
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return array_keys(self::$oidMap); |
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} |
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/** |
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* @param CurveFpInterface $curve |
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* @return int |
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*/ |
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public static function getByteSize(CurveFpInterface $curve): int |
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{ |
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if ($curve instanceof NamedCurveFp && array_key_exists($curve->getName(), self::$sizeMap)) { |
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return self::$sizeMap[$curve->getName()]; |
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} |
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throw new UnsupportedCurveException('Unsupported curve type'); |
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} |
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/** |
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* @param NamedCurveFp $curve |
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* @return ObjectIdentifier |
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*/ |
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public static function getCurveOid(NamedCurveFp $curve): ObjectIdentifier |
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{ |
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if (array_key_exists($curve->getName(), self::$oidMap)) { |
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$oidString = self::$oidMap[$curve->getName()]; |
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return new ObjectIdentifier($oidString); |
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} |
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throw new UnsupportedCurveException('Unsupported curve type'); |
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} |
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/** |
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* @param ObjectIdentifier $oid |
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* @return NamedCurveFp |
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*/ |
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public static function getCurveFromOid(ObjectIdentifier $oid): NamedCurveFp |
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{ |
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$oidString = $oid->getContent(); |
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$invertedMap = array_flip(self::$oidMap); |
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if (array_key_exists($oidString, $invertedMap)) { |
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return CurveFactory::getCurveByName($invertedMap[$oidString]); |
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} |
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$error = new UnsupportedCurveException('Invalid data: unsupported curve.'); |
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$error->setOid($oidString); |
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throw $error; |
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} |
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/** |
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* @param ObjectIdentifier $oid |
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* @return GeneratorPoint |
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*/ |
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public static function getGeneratorFromOid(ObjectIdentifier $oid): GeneratorPoint |
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{ |
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$oidString = $oid->getContent(); |
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$invertedMap = array_flip(self::$oidMap); |
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if (array_key_exists($oidString, $invertedMap)) { |
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return CurveFactory::getGeneratorByName($invertedMap[$oidString]); |
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} |
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$error = new UnsupportedCurveException('Invalid data: unsupported generator.'); |
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$error->setOid($oidString); |
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throw $error; |
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} |
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} |
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shanecurran /
phpecc
