diff --git a/src/Entities/Traits/ClientEntityTrait.php b/src/Entities/Traits/ClientEntityTrait.php
index 80e61b93..d7665fcf 100644
--- a/src/Entities/Traits/ClientEntityTrait.php
+++ b/src/Entities/Traits/ClientEntityTrait.php
@@ -9,8 +9,17 @@ trait ClientEntityTrait
     protected $name;
 
     /**
-     * Get the client's name
-     * @return string
+     * @var string
+     */
+    protected $secret;
+
+    /**
+     * @var string
+     */
+    protected $redirectUri;
+
+    /**
+     * @inheritdoc
      */
     public function getName()
     {
@@ -18,11 +27,50 @@ trait ClientEntityTrait
     }
 
     /**
-     * Set the client's name
-     * @param string $name
+     * @inheritdoc
      */
     public function setName($name)
     {
         $this->name = $name;
     }
+
+    /**
+     * @inheritdoc
+     */
+    public function canKeepASecret()
+    {
+        return $this->secret === null;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function setSecret($secret)
+    {
+        $this->secret = $secret;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function validateSecret($submittedSecret)
+    {
+        return strcmp((string) $submittedSecret, $this->secret) === 0;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function setRedirectUri($redirectUri)
+    {
+        $this->redirectUri = $redirectUri;
+    }
+
+    /**
+     * @inheritdoc
+     */
+    public function getRedirectUri()
+    {
+        return $this->redirectUri;
+    }
 }