diff --git a/sleekxmpp/clientxmpp.py b/sleekxmpp/clientxmpp.py
index 69e7db6..a836cbd 100644
--- a/sleekxmpp/clientxmpp.py
+++ b/sleekxmpp/clientxmpp.py
@@ -74,12 +74,15 @@ class ClientXMPP(BaseXMPP):
         BaseXMPP.__init__(self, jid, 'jabber:client')
 
         self.set_jid(jid)
-        self.password = password
         self.escape_quotes = escape_quotes
         self.plugin_config = plugin_config
         self.plugin_whitelist = plugin_whitelist
         self.default_port = 5222
 
+        self.credentials = {}
+
+        self.password = password
+
         self.stream_header = "<stream:stream to='%s' %s %s version='1.0'>" % (
                 self.boundjid.host,
                 "xmlns:stream='%s'" % self.stream_ns,
@@ -119,6 +122,14 @@ class ClientXMPP(BaseXMPP):
         self.register_plugin('feature_mechanisms',
                 pconfig={'use_mech': sasl_mech} if sasl_mech else None)
 
+    @property
+    def password(self):
+        return self.credentials.get('password', '')
+
+    @password.setter
+    def password(self, value):
+        self.credentials['password'] = value
+
     def connect(self, address=tuple(), reattempt=True,
                 use_tls=True, use_ssl=False):
         """Connect to the XMPP server.
diff --git a/sleekxmpp/features/feature_mechanisms/mechanisms.py b/sleekxmpp/features/feature_mechanisms/mechanisms.py
index deff5d3..1148f06 100644
--- a/sleekxmpp/features/feature_mechanisms/mechanisms.py
+++ b/sleekxmpp/features/feature_mechanisms/mechanisms.py
@@ -35,12 +35,18 @@ class feature_mechanisms(base_plugin):
             return 'starttls' in self.xmpp.features
 
         def basic_callback(mech, values):
-            if 'username' in values:
-                values['username'] = self.xmpp.boundjid.user
-            if 'password' in values:
-                values['password'] = self.xmpp.password
-            if 'access_token' in values:
-                values['access_token'] = self.xmpp.password
+            for value in values:
+                if value == 'username':
+                    values['username'] = self.xmpp.boundjid.user
+                elif value == 'password':
+                    values['password'] = self.xmpp.credentials['password']
+                elif value == 'access_token':
+                    if 'access_token' in self.xmpp.credentials:
+                        values['access_token'] = self.xmpp.credentials['access_token']
+                    else:
+                        values['access_token'] = self.xmpp.credentials['password']
+                elif value in self.xmpp.credentials:
+                    values[value] = self.xmpp.credentials[value]
             mech.fulfill(values)
 
         sasl_callback = self.config.get('sasl_callback', None)