2 files changed, 33 insertions, 5 deletions
diff --git a/Core/Util/SecureRandom.php b/Core/Util/SecureRandom.php
index 14a1f3d..77f1d8c 100644
--- a/Core/Util/SecureRandom.php
+++ b/Core/Util/SecureRandom.php
@@ -19,7 +19,7 @@ use Symfony\Component\HttpKernel\Log\LoggerInterface;
  * @author Fabien Potencier <fabien@symfony.com>
  * @author Johannes M. Schmitt <schmittjoh@gmail.com>
  */
-final class SecureRandom
+final class SecureRandom implements SecureRandomInterface
 {
     private $logger;
     private $useOpenSsl;
@@ -56,10 +56,7 @@ final class SecureRandom
     }
 
     /**
-     * Generates the specified number of secure random bytes.
-     *
-     * @param integer $nbBytes
-     * @return string
+     * {@inheritdoc}
      */
     public function nextBytes($nbBytes)
     {
diff --git a/Core/Util/SecureRandomInterface.php b/Core/Util/SecureRandomInterface.php
new file mode 100644
index 0000000..f2d8175
--- /dev/null
+++ b/Core/Util/SecureRandomInterface.php
@@ -0,0 +1,31 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Security\Core\Util;
+
+use Symfony\Component\HttpKernel\Log\LoggerInterface;
+
+/**
+ * A secure random number generator implementation.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+interface SecureRandomInterface
+{
+    /**
+     * Generates the specified number of secure random bytes.
+     *
+     * @param integer $nbBytes
+     *
+     * @return string
+     */
+    public function nextBytes($nbBytes);
+}