--- a/src/pyams_media/include.py	Sun Feb 18 12:47:42 2018 +0100
+++ b/src/pyams_media/include.py	Mon Mar 05 12:51:54 2018 +0100
@@ -22,7 +22,8 @@
 import sys
 
 # import interfaces
-from pyams_media.interfaces import CONVERTER_HANDLER_KEY, CONVERTER_STARTER_KEY, CONVERTER_NAME
+from pyams_media.interfaces import CONVERTER_NAME, CONVERTER_HANDLER_KEY, CONVERTER_STARTER_KEY, CONVERTER_AUTH_KEY, \
+    CONVERTER_CLIENTS_KEY
 from pyams_utils.interfaces import PYAMS_APPLICATION_SETTINGS_KEY, PYAMS_APPLICATION_DEFAULT_NAME
 from pyramid.interfaces import IApplicationCreated
 
@@ -78,7 +79,10 @@
                 if conversion_util is not None:
                     # create medias converter process
                     process = MediaConversionProcess(settings.get(CONVERTER_HANDLER_KEY, '127.0.0.1:5556'),
-                                                     MediaConversionMessageHandler, registry)
+                                                     MediaConversionMessageHandler,
+                                                     settings.get(CONVERTER_AUTH_KEY),
+                                                     settings.get(CONVERTER_CLIENTS_KEY),
+                                                     registry)
                     logger.info('Starting medias converter {0!r}...'.format(process))
                     process.start()
                     if process.is_alive():

--- a/src/pyams_media/interfaces/__init__.py	Sun Feb 18 12:47:42 2018 +0100
+++ b/src/pyams_media/interfaces/__init__.py	Mon Mar 05 12:51:54 2018 +0100
@@ -33,6 +33,8 @@
 CONVERTER_NAME = 'Medias converter'
 CONVERTER_STARTER_KEY = 'pyams_media.start_handler'
 CONVERTER_HANDLER_KEY = 'pyams_media.tcp_handler'
+CONVERTER_AUTH_KEY = 'pyams_media.allow_auth'
+CONVERTER_CLIENTS_KEY = 'pyams_media.allow_clients'
 
 CUSTOM_AUDIO_TYPES = (b'application/ogg',)
 CUSTOM_VIDEO_TYPES = ()
@@ -224,6 +226,9 @@
                         description=_("In kilo-bytes per second. Leave empty to keep original value."),
                         required=False)
 
+    def get_socket(self):
+        """Get 0MQ socket matching utility settings"""
+
     def check_media_conversion(self, media):
         """Check if conversion is needed for given media"""
 

--- a/src/pyams_media/process.py	Sun Feb 18 12:47:42 2018 +0100
+++ b/src/pyams_media/process.py	Mon Mar 05 12:51:54 2018 +0100
@@ -155,6 +155,6 @@
 class MediaConversionProcess(ZMQProcess):
     """Media conversion ZMQ process"""
 
-    def __init__(self, zmq_address, handler, registry):
-        ZMQProcess.__init__(self, zmq_address, handler)
+    def __init__(self, zmq_address, handler, auth, clients, registry):
+        ZMQProcess.__init__(self, zmq_address, handler, auth, clients)
         self.registry = registry

--- a/src/pyams_media/utility.py	Sun Feb 18 12:47:42 2018 +0100
+++ b/src/pyams_media/utility.py	Mon Mar 05 12:51:54 2018 +0100
@@ -17,7 +17,7 @@
 
 # import interfaces
 from pyams_media.interfaces import IMediaConversionUtility, CONVERTER_HANDLER_KEY, CUSTOM_AUDIO_TYPES, \
-    CUSTOM_VIDEO_TYPES
+    CUSTOM_VIDEO_TYPES, CONVERTER_AUTH_KEY
 from zope.intid.interfaces import IIntIds
 
 # import packages
@@ -63,15 +63,15 @@
         for format in requested_formats:
             self.convert(media, format)
 
-    def _get_socket(self):
+    def get_socket(self):
         registry = get_current_registry()
         handler = registry.settings.get(CONVERTER_HANDLER_KEY, False)
         if handler:
-            return zmq_socket(handler)
+            return zmq_socket(handler, auth=registry.settings.get(CONVERTER_AUTH_KEY))
 
     def convert(self, media, format):
         """Send conversion request for given media"""
-        socket = self._get_socket()
+        socket = self.get_socket()
         if socket is None:
             return [501, "No socket handler defined in configuration file"]
         intids = get_utility(IIntIds)
@@ -83,7 +83,7 @@
 
     def test_process(self):
         """Send test request to conversion process"""
-        socket = self._get_socket()
+        socket = self.get_socket()
         if socket is None:
             return [501, "No socket handler defined in configuration file"]
         socket.send_json(['test', {}])