diff --git a/tempest/lib/common/rest_client.py b/tempest/lib/common/rest_client.py
index a2f2931..4e1dc59 100644
--- a/tempest/lib/common/rest_client.py
+++ b/tempest/lib/common/rest_client.py
@@ -94,6 +94,7 @@
         self.build_interval = build_interval
         self.build_timeout = build_timeout
         self.trace_requests = trace_requests
+        self.ca_certs = ca_certs
 
         self._skip_path = False
         self.general_header_lc = set(('cache-control', 'connection',
diff --git a/tempest/lib/services/object_storage/object_client.py b/tempest/lib/services/object_storage/object_client.py
index 65e8227..c7ac80f 100644
--- a/tempest/lib/services/object_storage/object_client.py
+++ b/tempest/lib/services/object_storage/object_client.py
@@ -167,11 +167,14 @@
         :param parsed_url: parsed url of the remote location
         """
         context = None
-        # If CONF.identity.disable_ssl_certificate_validation is true,
-        # do not check ssl certification.
-        if self.dscv:
-            context = ssl._create_unverified_context()
         if parsed_url.scheme == 'https':
+            # If CONF.identity.disable_ssl_certificate_validation is true,
+            # do not check ssl certification.
+            if self.dscv:
+                context = ssl._create_unverified_context()
+            else:
+                context = ssl.create_default_context(
+                    cafile=self.ca_certs)
             conn = httplib.HTTPSConnection(parsed_url.netloc,
                                            context=context)
         else: