diff --git a/Authors b/Authors
index f23565b409f..cc1fb785a87 100644
--- a/Authors
+++ b/Authors
@@ -1,6 +1,7 @@
 Aaron Lee <aaron.lee@rackspace.com>
 Adam Gandelman <adamg@canonical.com>
 Adam Johnson <adjohn@gmail.com>
+Ahmad Hassan <ahmad.hassan@hp.com>
 Alex Meade <alex.meade@rackspace.com>
 Alexander Sakhnov <asakhnov@mirantis.com>
 Andrey Brindeyev <abrindeyev@griddynamics.com>
diff --git a/nova/api/ec2/__init__.py b/nova/api/ec2/__init__.py
index 8dcb44bba6e..4b4c0f53664 100644
--- a/nova/api/ec2/__init__.py
+++ b/nova/api/ec2/__init__.py
@@ -188,7 +188,8 @@ def __call__(self, req):
                     req.host,
                     req.path)
         # Be explicit for what exceptions are 403, the rest bubble as 500
-        except (exception.NotFound, exception.NotAuthorized) as ex:
+        except (exception.NotFound, exception.NotAuthorized,
+                exception.InvalidSignature) as ex:
             LOG.audit(_("Authentication Failure: %s"), unicode(ex))
             raise webob.exc.HTTPForbidden()
 
diff --git a/nova/auth/manager.py b/nova/auth/manager.py
index 44e6e11acd2..e0504464ee8 100644
--- a/nova/auth/manager.py
+++ b/nova/auth/manager.py
@@ -149,11 +149,7 @@ def is_project_manager(self, project):
         return AuthManager().is_project_manager(self, project)
 
     def __repr__(self):
-        return "User('%s', '%s', '%s', '%s', %s)" % (self.id,
-                                                     self.name,
-                                                     self.access,
-                                                     self.secret,
-                                                     self.admin)
+        return "User('%s', '%s')" % (self.id, self.name)
 
 
 class Project(AuthBase):
@@ -200,9 +196,7 @@ def get_credentials(self, user):
         return AuthManager().get_credentials(user, self)
 
     def __repr__(self):
-        return "Project('%s', '%s', '%s', '%s', %s)" % \
-            (self.id, self.name, self.project_manager_id, self.description,
-             self.member_ids)
+        return "Project('%s', '%s')" % (self.id, self.name)
 
 
 class AuthManager(object):