Updating Passport to use a Key object for faster encryption/decryptio…

…n, when combined with oauth2-server package patch from thephpleague/oauth2-server#814

src/PassportServiceProvider.php

@@ -3,6 +3,8 @@
 namespace Laravel\Passport;
 
 use DateInterval;
+use Defuse\Crypto\Key;
+use Defuse\Crypto\Encoding;
 use Illuminate\Auth\RequestGuard;
 use Illuminate\Auth\Events\Logout;
 use Illuminate\Support\Facades\Auth;
@@ -199,12 +201,15 @@ protected function makeImplicitGrant()
      */
     public function makeAuthorizationServer()
     {
+        // Make a new AsciiSafeString so we can generate a Defuse\Crypto\Key object from that
+        $encryptionKeyAscii = Encoding::saveBytesToChecksummedAsciiSafeString(Key::KEY_CURRENT_VERSION, app('encrypter')->getKey());
         return new AuthorizationServer(
             $this->app->make(Bridge\ClientRepository::class),
             $this->app->make(Bridge\AccessTokenRepository::class),
             $this->app->make(Bridge\ScopeRepository::class),
             $this->makeCryptKey('private'),
-            app('encrypter')->getKey()
+            // Use a Key object instead of a string so we can take advantage of faster encryption/decryption from https://github.com/thephpleague/oauth2-server/pull/814
+            Key::loadFromAsciiSafeString($encryptionKeyAscii)
         );
     }