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vendor/symfony/mime/Crypto/SMimeEncrypter.php

@@ -26,7 +26,7 @@ final class SMimeEncrypter extends SMime
      * @param string|string[] $certificate The path (or array of paths) of the file(s) containing the X.509 certificate(s)
      * @param int|null        $cipher      A set of algorithms used to encrypt the message. Must be one of these PHP constants: https://www.php.net/manual/en/openssl.ciphers.php
      */
-    public function __construct(string|array $certificate, int $cipher = null)
+    public function __construct(string|array $certificate, ?int $cipher = null)
     {
         if (!\extension_loaded('openssl')) {
             throw new \LogicException('PHP extension "openssl" is required to use SMime.');

vendor/symfony/mime/Crypto/SMimeSigner.php

@@ -31,7 +31,7 @@ final class SMimeSigner extends SMime
      * @param string|null $extraCerts           The path of the file containing intermediate certificates (in PEM format) needed by the signing certificate
      * @param int|null    $signOptions          Bitwise operator options for openssl_pkcs7_sign() (@see https://secure.php.net/manual/en/openssl.pkcs7.flags.php)
      */
-    public function __construct(string $certificate, string $privateKey, string $privateKeyPassphrase = null, string $extraCerts = null, int $signOptions = null)
+    public function __construct(string $certificate, string $privateKey, ?string $privateKeyPassphrase = null, ?string $extraCerts = null, ?int $signOptions = null)
     {
         if (!\extension_loaded('openssl')) {
             throw new \LogicException('PHP extension "openssl" is required to use SMime.');