Change access level of _encryptPrivateKey and _decryptPrivateKey methods from protected to private

Author: MayMeow

src/RSAParameters.php

@@ -45,7 +45,7 @@ public function generateKeys(?string $passphrase = null, ?array $configArgs = nu
         return $this;
     }
 
-    protected function _encryptPrivateKey(string $privateKey, string $salt = 'salt'): string
+    private function _encryptPrivateKey(string $privateKey, string $salt = 'salt'): string
     {
         $aes = new AESCryptoServiceProvider();
         $aes->generateIV();
@@ -56,7 +56,7 @@ protected function _encryptPrivateKey(string $privateKey, string $salt = 'salt')
         return $aes->encrypt($privateKey);
     }
 
-    protected function _decryptPrivateKey(string $privateKey, string $salt = 'salt'): string
+    private function _decryptPrivateKey(string $privateKey, string $salt = 'salt'): string
     {
         $aes = new AESCryptoServiceProvider();
         $k = new CryptoKey();