X-Git-Url: https://git.mxchange.org/?a=blobdiff_plain;f=src%2FUtil%2FCrypto.php;h=1781dfb77988a0389484bed24cea973effe19c05;hb=24c32cff0dcd38d5aa509208f5f17abb05a8b140;hp=d983202c0c1847f149fc49ffa1a983702d9a4711;hpb=322b7c856ca9ba53bd9c7da50dd5c1e3c9197d56;p=friendica.git

diff --git a/src/Util/Crypto.php b/src/Util/Crypto.php
index d983202c0c..1781dfb779 100644
--- a/src/Util/Crypto.php
+++ b/src/Util/Crypto.php
@@ -1,6 +1,6 @@
 <?php
 /**
- * @copyright Copyright (C) 2010-2022, the Friendica project
+ * @copyright Copyright (C) 2010-2023, the Friendica project
  *
  * @license GNU AGPL version 3 or any later version
  *
@@ -21,14 +21,11 @@
 
 namespace Friendica\Util;
 
-use Exception;
 use Friendica\Core\Hook;
 use Friendica\Core\Logger;
 use Friendica\Core\System;
 use Friendica\DI;
-use ParagonIE\ConstantTime\Base64UrlSafe;
-use phpseclib\Crypt\RSA;
-use phpseclib\Math\BigInteger;
+use phpseclib3\Crypt\PublicKeyLoader;
 
 /**
  * Crypto class
@@ -66,22 +63,6 @@ class Crypto
 		return openssl_verify($data, $sig, $key, (($alg == 'sha1') ? OPENSSL_ALGO_SHA1 : $alg));
 	}
 
-	/**
-	/**
-	 * @param string $m modulo
-	 * @param string $e exponent
-	 * @return string
-	 */
-	public static function meToPem($m, $e)
-	{
-		$rsa = new RSA();
-		$rsa->loadKey([
-			'e' => new BigInteger($e, 256),
-			'n' => new BigInteger($m, 256)
-		]);
-		return $rsa->getPublicKey();
-	}
-
 	/**
 	 * Transform RSA public keys to standard PEM output
 	 *
@@ -91,29 +72,7 @@ class Crypto
 	 */
 	public static function rsaToPem(string $key)
 	{
-		$rsa = new RSA();
-		$rsa->setPublicKey($key);
-
-		return $rsa->getPublicKey(RSA::PUBLIC_FORMAT_PKCS8);
-	}
-
-	/**
-	 * Extracts the modulo and exponent reference from a public PEM key
-	 *
-	 * @param string $key      public PEM key
-	 * @param string $modulus  (ref) modulo reference
-	 * @param string $exponent (ref) exponent reference
-	 *
-	 * @return void
-	 */
-	public static function pemToMe(string $key, &$modulus, &$exponent)
-	{
-		$rsa = new RSA();
-		$rsa->loadKey($key);
-		$rsa->setPublicKey();
-
-		$modulus  = $rsa->modulus->toBytes();
-		$exponent = $rsa->exponent->toBytes();
+		return (string)PublicKeyLoader::load($key);
 	}
 
 	/**
@@ -152,50 +111,6 @@ class Crypto
 		return $response;
 	}
 
-	/**
-	 * Create a new elliptic curve key pair
-	 *
-	 * @return array with the elements "prvkey", "pubkey", "vapid-public" and "vapid-private"
-	 */
-	public static function newECKeypair()
-	{
-		$openssl_options = [
-			'curve_name'       => 'prime256v1',
-			'private_key_type' => OPENSSL_KEYTYPE_EC
-		];
-
-		$conf = DI::config()->get('system', 'openssl_conf_file');
-		if ($conf) {
-			$openssl_options['config'] = $conf;
-		}
-		$result = openssl_pkey_new($openssl_options);
-
-		if (empty($result)) {
-			throw new Exception('Key creation failed');
-		}
-
-		$response = ['prvkey' => '', 'pubkey' => ''];
-
-		// Get private key
-		openssl_pkey_export($result, $response['prvkey']);
-
-		// Get public key
-		$pkey = openssl_pkey_get_details($result);
-		$response['pubkey'] = $pkey['key'];
-
-		// Create VAPID keys
-		// @see https://github.com/web-push-libs/web-push-php/blob/256a18b2a2411469c94943725fb6eccb9681bd75/src/Utils.php#L60-L62
-		$hexString = '04';
-		$hexString .= str_pad(bin2hex($pkey['ec']['x']), 64, '0', STR_PAD_LEFT);
-		$hexString .= str_pad(bin2hex($pkey['ec']['y']), 64, '0', STR_PAD_LEFT);
-		$response['vapid-public'] = Base64UrlSafe::encode(hex2bin($hexString));
-
-		// @see https://github.com/web-push-libs/web-push-php/blob/256a18b2a2411469c94943725fb6eccb9681bd75/src/VAPID.php
-		$response['vapid-private'] = Base64UrlSafe::encode(hex2bin(str_pad(bin2hex($pkey['ec']['d']), 64, '0', STR_PAD_LEFT)));
-
-		return $response;
-	}
-
 	/**
 	 * Encrypt a string with 'aes-256-cbc' cipher method.
 	 *