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Diffstat (limited to 'vendor/phpseclib/phpseclib/phpseclib/Crypt/EC/Formats/Keys/MontgomeryPublic.php')
-rw-r--r-- | vendor/phpseclib/phpseclib/phpseclib/Crypt/EC/Formats/Keys/MontgomeryPublic.php | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/vendor/phpseclib/phpseclib/phpseclib/Crypt/EC/Formats/Keys/MontgomeryPublic.php b/vendor/phpseclib/phpseclib/phpseclib/Crypt/EC/Formats/Keys/MontgomeryPublic.php new file mode 100644 index 0000000..d1ad48a --- /dev/null +++ b/vendor/phpseclib/phpseclib/phpseclib/Crypt/EC/Formats/Keys/MontgomeryPublic.php @@ -0,0 +1,71 @@ +<?php + +/** + * Montgomery Public Key Handler + * + * PHP version 5 + * + * @author Jim Wigginton <[email protected]> + * @copyright 2015 Jim Wigginton + * @license http://www.opensource.org/licenses/mit-license.html MIT License + * @link http://phpseclib.sourceforge.net + */ + +namespace phpseclib3\Crypt\EC\Formats\Keys; + +use phpseclib3\Crypt\EC\BaseCurves\Montgomery as MontgomeryCurve; +use phpseclib3\Crypt\EC\Curves\Curve25519; +use phpseclib3\Crypt\EC\Curves\Curve448; +use phpseclib3\Math\BigInteger; + +/** + * Montgomery Public Key Handler + * + * @author Jim Wigginton <[email protected]> + */ +abstract class MontgomeryPublic +{ + /** + * Is invisible flag + * + */ + const IS_INVISIBLE = true; + + /** + * Break a public or private key down into its constituent components + * + * @param string $key + * @param string $password optional + * @return array + */ + public static function load($key, $password = '') + { + switch (strlen($key)) { + case 32: + $curve = new Curve25519(); + break; + case 56: + $curve = new Curve448(); + break; + default: + throw new \LengthException('The only supported lengths are 32 and 56'); + } + + $components = ['curve' => $curve]; + $components['QA'] = [$components['curve']->convertInteger(new BigInteger(strrev($key), 256))]; + + return $components; + } + + /** + * Convert an EC public key to the appropriate format + * + * @param \phpseclib3\Crypt\EC\BaseCurves\Montgomery $curve + * @param \phpseclib3\Math\Common\FiniteField\Integer[] $publicKey + * @return string + */ + public static function savePublicKey(MontgomeryCurve $curve, array $publicKey) + { + return strrev($publicKey[0]->toBytes()); + } +} |