diff --git a/docs/oauth2client.client.html b/docs/oauth2client.client.html
index 5a0f5d6..129d65c 100644
--- a/docs/oauth2client.client.html
+++ b/docs/oauth2client.client.html
@@ -19,16 +19,19 @@
 <font color="#ffffff" face="helvetica, arial"><big><strong>Modules</strong></big></font></td></tr>
     
 <tr><td bgcolor="#aa55cc"><tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</tt></td><td>&nbsp;</td>
-<td width="100%"><table width="100%" summary="list"><tr><td width="25%" valign=top><a href="oauth2client.clientsecrets.html">oauth2client.clientsecrets</a><br>
+<td width="100%"><table width="100%" summary="list"><tr><td width="25%" valign=top><a href="base64.html">base64</a><br>
+<a href="oauth2client.clientsecrets.html">oauth2client.clientsecrets</a><br>
 <a href="copy.html">copy</a><br>
-<a href="datetime.html">datetime</a><br>
-</td><td width="25%" valign=top><a href="httplib2.html">httplib2</a><br>
+</td><td width="25%" valign=top><a href="datetime.html">datetime</a><br>
+<a href="httplib2.html">httplib2</a><br>
 <a href="logging.html">logging</a><br>
-<a href="django.utils.simplejson.html">django.utils.simplejson</a><br>
-</td><td width="25%" valign=top><a href="sys.html">sys</a><br>
+</td><td width="25%" valign=top><a href="os.html">os</a><br>
+<a href="simplejson.html">simplejson</a><br>
+<a href="sys.html">sys</a><br>
+</td><td width="25%" valign=top><a href="time.html">time</a><br>
 <a href="urllib.html">urllib</a><br>
 <a href="urlparse.html">urlparse</a><br>
-</td><td width="25%" valign=top></td></tr></table></td></tr></table><p>
+</td></tr></table></td></tr></table><p>
 <table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
 <tr bgcolor="#ee77aa">
 <td colspan=3 valign=bottom>&nbsp;<br>
@@ -47,10 +50,15 @@
 <dl>
 <dt><font face="helvetica, arial"><a href="oauth2client.client.html#AccessTokenCredentials">AccessTokenCredentials</a>
 </font></dt><dt><font face="helvetica, arial"><a href="oauth2client.client.html#AssertionCredentials">AssertionCredentials</a>
+</font></dt><dd>
+<dl>
+<dt><font face="helvetica, arial"><a href="oauth2client.client.html#SignedJwtAssertionCredentials">SignedJwtAssertionCredentials</a>
 </font></dt></dl>
 </dd>
 </dl>
 </dd>
+</dl>
+</dd>
 <dt><font face="helvetica, arial"><a href="oauth2client.client.html#Flow">Flow</a>
 </font></dt><dd>
 <dl>
@@ -70,6 +78,7 @@
 </font></dt><dt><font face="helvetica, arial"><a href="oauth2client.client.html#AccessTokenRefreshError">AccessTokenRefreshError</a>
 </font></dt><dt><font face="helvetica, arial"><a href="oauth2client.client.html#FlowExchangeError">FlowExchangeError</a>
 </font></dt><dt><font face="helvetica, arial"><a href="oauth2client.client.html#UnknownClientSecretsFlowError">UnknownClientSecretsFlowError</a>
+</font></dt><dt><font face="helvetica, arial"><a href="oauth2client.client.html#VerifyJwtTokenError">VerifyJwtTokenError</a>
 </font></dt></dl>
 </dd>
 </dl>
@@ -221,7 +230,7 @@
 </dl>
 <hr>
 Methods inherited from <a href="exceptions.html#Exception">exceptions.Exception</a>:<br>
-<dl><dt><a name="AccessTokenCredentialsError-__init__"><strong>__init__</strong></a>(...)</dt><dd><tt>x.<a href="#AccessTokenCredentialsError-__init__">__init__</a>(...)&nbsp;initializes&nbsp;x;&nbsp;see&nbsp;help(type(x))&nbsp;for&nbsp;signature</tt></dd></dl>
+<dl><dt><a name="AccessTokenCredentialsError-__init__"><strong>__init__</strong></a>(...)</dt><dd><tt>x.<a href="#AccessTokenCredentialsError-__init__">__init__</a>(...)&nbsp;initializes&nbsp;x;&nbsp;see&nbsp;x.__class__.__doc__&nbsp;for&nbsp;signature</tt></dd></dl>
 
 <hr>
 Data and other attributes inherited from <a href="exceptions.html#Exception">exceptions.Exception</a>:<br>
@@ -282,7 +291,7 @@
 </dl>
 <hr>
 Methods inherited from <a href="exceptions.html#Exception">exceptions.Exception</a>:<br>
-<dl><dt><a name="AccessTokenRefreshError-__init__"><strong>__init__</strong></a>(...)</dt><dd><tt>x.<a href="#AccessTokenRefreshError-__init__">__init__</a>(...)&nbsp;initializes&nbsp;x;&nbsp;see&nbsp;help(type(x))&nbsp;for&nbsp;signature</tt></dd></dl>
+<dl><dt><a name="AccessTokenRefreshError-__init__"><strong>__init__</strong></a>(...)</dt><dd><tt>x.<a href="#AccessTokenRefreshError-__init__">__init__</a>(...)&nbsp;initializes&nbsp;x;&nbsp;see&nbsp;x.__class__.__doc__&nbsp;for&nbsp;signature</tt></dd></dl>
 
 <hr>
 Data and other attributes inherited from <a href="exceptions.html#Exception">exceptions.Exception</a>:<br>
@@ -506,7 +515,7 @@
 </dl>
 <hr>
 Methods inherited from <a href="exceptions.html#Exception">exceptions.Exception</a>:<br>
-<dl><dt><a name="Error-__init__"><strong>__init__</strong></a>(...)</dt><dd><tt>x.<a href="#Error-__init__">__init__</a>(...)&nbsp;initializes&nbsp;x;&nbsp;see&nbsp;help(type(x))&nbsp;for&nbsp;signature</tt></dd></dl>
+<dl><dt><a name="Error-__init__"><strong>__init__</strong></a>(...)</dt><dd><tt>x.<a href="#Error-__init__">__init__</a>(...)&nbsp;initializes&nbsp;x;&nbsp;see&nbsp;x.__class__.__doc__&nbsp;for&nbsp;signature</tt></dd></dl>
 
 <hr>
 Data and other attributes inherited from <a href="exceptions.html#Exception">exceptions.Exception</a>:<br>
@@ -583,7 +592,7 @@
 </dl>
 <hr>
 Methods inherited from <a href="exceptions.html#Exception">exceptions.Exception</a>:<br>
-<dl><dt><a name="FlowExchangeError-__init__"><strong>__init__</strong></a>(...)</dt><dd><tt>x.<a href="#FlowExchangeError-__init__">__init__</a>(...)&nbsp;initializes&nbsp;x;&nbsp;see&nbsp;help(type(x))&nbsp;for&nbsp;signature</tt></dd></dl>
+<dl><dt><a name="FlowExchangeError-__init__"><strong>__init__</strong></a>(...)</dt><dd><tt>x.<a href="#FlowExchangeError-__init__">__init__</a>(...)&nbsp;initializes&nbsp;x;&nbsp;see&nbsp;x.__class__.__doc__&nbsp;for&nbsp;signature</tt></dd></dl>
 
 <hr>
 Data and other attributes inherited from <a href="exceptions.html#Exception">exceptions.Exception</a>:<br>
@@ -631,8 +640,7 @@
 <td colspan=2><tt><a href="#Credentials">Credentials</a>&nbsp;<a href="__builtin__.html#object">object</a>&nbsp;for&nbsp;OAuth&nbsp;2.0.<br>
 &nbsp;<br>
 <a href="#Credentials">Credentials</a>&nbsp;can&nbsp;be&nbsp;applied&nbsp;to&nbsp;an&nbsp;httplib2.Http&nbsp;<a href="__builtin__.html#object">object</a>&nbsp;using&nbsp;the&nbsp;<a href="#OAuth2Credentials-authorize">authorize</a>()<br>
-method,&nbsp;which&nbsp;then&nbsp;signs&nbsp;each&nbsp;request&nbsp;from&nbsp;that&nbsp;<a href="__builtin__.html#object">object</a>&nbsp;with&nbsp;the&nbsp;OAuth&nbsp;2.0<br>
-access&nbsp;token.<br>
+method,&nbsp;which&nbsp;then&nbsp;adds&nbsp;the&nbsp;OAuth&nbsp;2.0&nbsp;access&nbsp;token&nbsp;to&nbsp;each&nbsp;request.<br>
 &nbsp;<br>
 <a href="#OAuth2Credentials">OAuth2Credentials</a>&nbsp;objects&nbsp;may&nbsp;be&nbsp;safely&nbsp;pickled&nbsp;and&nbsp;unpickled.<br>&nbsp;</tt></td></tr>
 <tr><td>&nbsp;</td>
@@ -645,7 +653,7 @@
 Methods defined here:<br>
 <dl><dt><a name="OAuth2Credentials-__getstate__"><strong>__getstate__</strong></a>(self)</dt><dd><tt>Trim&nbsp;the&nbsp;state&nbsp;down&nbsp;to&nbsp;something&nbsp;that&nbsp;can&nbsp;be&nbsp;pickled.</tt></dd></dl>
 
-<dl><dt><a name="OAuth2Credentials-__init__"><strong>__init__</strong></a>(self, access_token, client_id, client_secret, refresh_token, token_expiry, token_uri, user_agent)</dt><dd><tt>Create&nbsp;an&nbsp;instance&nbsp;of&nbsp;<a href="#OAuth2Credentials">OAuth2Credentials</a>.<br>
+<dl><dt><a name="OAuth2Credentials-__init__"><strong>__init__</strong></a>(self, access_token, client_id, client_secret, refresh_token, token_expiry, token_uri, user_agent, id_token<font color="#909090">=None</font>)</dt><dd><tt>Create&nbsp;an&nbsp;instance&nbsp;of&nbsp;<a href="#OAuth2Credentials">OAuth2Credentials</a>.<br>
 &nbsp;<br>
 This&nbsp;constructor&nbsp;is&nbsp;not&nbsp;usually&nbsp;called&nbsp;by&nbsp;the&nbsp;user,&nbsp;instead<br>
 <a href="#OAuth2Credentials">OAuth2Credentials</a>&nbsp;objects&nbsp;are&nbsp;instantiated&nbsp;by&nbsp;the&nbsp;<a href="#OAuth2WebServerFlow">OAuth2WebServerFlow</a>.<br>
@@ -658,9 +666,10 @@
 &nbsp;&nbsp;token_expiry:&nbsp;datetime,&nbsp;when&nbsp;the&nbsp;access_token&nbsp;expires.<br>
 &nbsp;&nbsp;token_uri:&nbsp;string,&nbsp;URI&nbsp;of&nbsp;token&nbsp;endpoint.<br>
 &nbsp;&nbsp;user_agent:&nbsp;string,&nbsp;The&nbsp;HTTP&nbsp;User-Agent&nbsp;to&nbsp;provide&nbsp;for&nbsp;this&nbsp;application.<br>
+&nbsp;&nbsp;id_token:&nbsp;<a href="__builtin__.html#object">object</a>,&nbsp;The&nbsp;identity&nbsp;of&nbsp;the&nbsp;resource&nbsp;owner.<br>
 &nbsp;<br>
 Notes:<br>
-&nbsp;&nbsp;store:&nbsp;callable,&nbsp;a&nbsp;callable&nbsp;that&nbsp;when&nbsp;passed&nbsp;a&nbsp;Credential<br>
+&nbsp;&nbsp;store:&nbsp;callable,&nbsp;A&nbsp;callable&nbsp;that&nbsp;when&nbsp;passed&nbsp;a&nbsp;Credential<br>
 &nbsp;&nbsp;&nbsp;&nbsp;will&nbsp;store&nbsp;the&nbsp;credential&nbsp;back&nbsp;to&nbsp;where&nbsp;it&nbsp;came&nbsp;from.<br>
 &nbsp;&nbsp;&nbsp;&nbsp;This&nbsp;is&nbsp;needed&nbsp;to&nbsp;store&nbsp;the&nbsp;latest&nbsp;access_token&nbsp;if&nbsp;it<br>
 &nbsp;&nbsp;&nbsp;&nbsp;has&nbsp;expired&nbsp;and&nbsp;been&nbsp;refreshed.</tt></dd></dl>
@@ -805,6 +814,118 @@
 <table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
 <tr bgcolor="#ffc8d8">
 <td colspan=3 valign=bottom>&nbsp;<br>
+<font color="#000000" face="helvetica, arial"><a name="SignedJwtAssertionCredentials">class <strong>SignedJwtAssertionCredentials</strong></a>(<a href="oauth2client.client.html#AssertionCredentials">AssertionCredentials</a>)</font></td></tr>
+    
+<tr bgcolor="#ffc8d8"><td rowspan=2><tt>&nbsp;&nbsp;&nbsp;</tt></td>
+<td colspan=2><tt><a href="#Credentials">Credentials</a>&nbsp;<a href="__builtin__.html#object">object</a>&nbsp;used&nbsp;for&nbsp;OAuth&nbsp;2.0&nbsp;Signed&nbsp;JWT&nbsp;assertion&nbsp;grants.<br>
+&nbsp;<br>
+This&nbsp;credential&nbsp;does&nbsp;not&nbsp;require&nbsp;a&nbsp;flow&nbsp;to&nbsp;instantiate&nbsp;because&nbsp;it<br>
+represents&nbsp;a&nbsp;two&nbsp;legged&nbsp;flow,&nbsp;and&nbsp;therefore&nbsp;has&nbsp;all&nbsp;of&nbsp;the&nbsp;required<br>
+information&nbsp;to&nbsp;generate&nbsp;and&nbsp;refresh&nbsp;its&nbsp;own&nbsp;access&nbsp;tokens.<br>&nbsp;</tt></td></tr>
+<tr><td>&nbsp;</td>
+<td width="100%"><dl><dt>Method resolution order:</dt>
+<dd><a href="oauth2client.client.html#SignedJwtAssertionCredentials">SignedJwtAssertionCredentials</a></dd>
+<dd><a href="oauth2client.client.html#AssertionCredentials">AssertionCredentials</a></dd>
+<dd><a href="oauth2client.client.html#OAuth2Credentials">OAuth2Credentials</a></dd>
+<dd><a href="oauth2client.client.html#Credentials">Credentials</a></dd>
+<dd><a href="__builtin__.html#object">__builtin__.object</a></dd>
+</dl>
+<hr>
+Methods defined here:<br>
+<dl><dt><a name="SignedJwtAssertionCredentials-__init__"><strong>__init__</strong></a>(self, service_account_name, private_key, scope, private_key_password<font color="#909090">='notasecret'</font>, user_agent<font color="#909090">=None</font>, token_uri<font color="#909090">='https://accounts.google.com/o/oauth2/token'</font>, **kwargs)</dt><dd><tt>Constructor&nbsp;for&nbsp;<a href="#SignedJwtAssertionCredentials">SignedJwtAssertionCredentials</a>.<br>
+&nbsp;<br>
+Args:<br>
+&nbsp;&nbsp;service_account_name:&nbsp;string,&nbsp;id&nbsp;for&nbsp;account,&nbsp;usually&nbsp;an&nbsp;email&nbsp;address.<br>
+&nbsp;&nbsp;private_key:&nbsp;string,&nbsp;private&nbsp;key&nbsp;in&nbsp;P12&nbsp;format.<br>
+&nbsp;&nbsp;scope:&nbsp;string&nbsp;or&nbsp;list&nbsp;of&nbsp;strings,&nbsp;scope(s)&nbsp;of&nbsp;the&nbsp;credentials&nbsp;being<br>
+&nbsp;&nbsp;&nbsp;&nbsp;requested.<br>
+&nbsp;&nbsp;private_key_password:&nbsp;string,&nbsp;password&nbsp;for&nbsp;private_key.<br>
+&nbsp;&nbsp;user_agent:&nbsp;string,&nbsp;HTTP&nbsp;User-Agent&nbsp;to&nbsp;provide&nbsp;for&nbsp;this&nbsp;application.<br>
+&nbsp;&nbsp;token_uri:&nbsp;string,&nbsp;URI&nbsp;for&nbsp;token&nbsp;endpoint.&nbsp;For&nbsp;convenience<br>
+&nbsp;&nbsp;&nbsp;&nbsp;defaults&nbsp;to&nbsp;Google's&nbsp;endpoints&nbsp;but&nbsp;any&nbsp;OAuth&nbsp;2.0&nbsp;provider&nbsp;can&nbsp;be&nbsp;used.<br>
+&nbsp;&nbsp;kwargs:&nbsp;kwargs,&nbsp;Additional&nbsp;parameters&nbsp;to&nbsp;add&nbsp;to&nbsp;the&nbsp;JWT&nbsp;token,&nbsp;for<br>
+&nbsp;&nbsp;&nbsp;&nbsp;example&nbsp;prn=joe@xample.org.</tt></dd></dl>
+
+<hr>
+Class methods defined here:<br>
+<dl><dt><a name="SignedJwtAssertionCredentials-from_json"><strong>from_json</strong></a>(cls, s)<font color="#909090"><font face="helvetica, arial"> from <a href="__builtin__.html#type">__builtin__.type</a></font></font></dt></dl>
+
+<hr>
+Data and other attributes defined here:<br>
+<dl><dt><strong>MAX_TOKEN_LIFETIME_SECS</strong> = 3600</dl>
+
+<hr>
+Methods inherited from <a href="oauth2client.client.html#OAuth2Credentials">OAuth2Credentials</a>:<br>
+<dl><dt><a name="SignedJwtAssertionCredentials-__getstate__"><strong>__getstate__</strong></a>(self)</dt><dd><tt>Trim&nbsp;the&nbsp;state&nbsp;down&nbsp;to&nbsp;something&nbsp;that&nbsp;can&nbsp;be&nbsp;pickled.</tt></dd></dl>
+
+<dl><dt><a name="SignedJwtAssertionCredentials-__setstate__"><strong>__setstate__</strong></a>(self, state)</dt><dd><tt>Reconstitute&nbsp;the&nbsp;state&nbsp;of&nbsp;the&nbsp;<a href="__builtin__.html#object">object</a>&nbsp;from&nbsp;being&nbsp;pickled.</tt></dd></dl>
+
+<dl><dt><a name="SignedJwtAssertionCredentials-authorize"><strong>authorize</strong></a>(self, http)</dt><dd><tt>Authorize&nbsp;an&nbsp;httplib2.Http&nbsp;instance&nbsp;with&nbsp;these&nbsp;credentials.<br>
+&nbsp;<br>
+Args:<br>
+&nbsp;&nbsp;&nbsp;http:&nbsp;An&nbsp;instance&nbsp;of&nbsp;httplib2.Http<br>
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;or&nbsp;something&nbsp;that&nbsp;acts&nbsp;like&nbsp;it.<br>
+&nbsp;<br>
+Returns:<br>
+&nbsp;&nbsp;&nbsp;A&nbsp;modified&nbsp;instance&nbsp;of&nbsp;http&nbsp;that&nbsp;was&nbsp;passed&nbsp;in.<br>
+&nbsp;<br>
+Example:<br>
+&nbsp;<br>
+&nbsp;&nbsp;h&nbsp;=&nbsp;httplib2.Http()<br>
+&nbsp;&nbsp;h&nbsp;=&nbsp;credentials.<a href="#SignedJwtAssertionCredentials-authorize">authorize</a>(h)<br>
+&nbsp;<br>
+You&nbsp;can't&nbsp;create&nbsp;a&nbsp;new&nbsp;OAuth&nbsp;subclass&nbsp;of&nbsp;httplib2.Authenication<br>
+because&nbsp;it&nbsp;never&nbsp;gets&nbsp;passed&nbsp;the&nbsp;absolute&nbsp;URI,&nbsp;which&nbsp;is&nbsp;needed&nbsp;for<br>
+signing.&nbsp;So&nbsp;instead&nbsp;we&nbsp;have&nbsp;to&nbsp;overload&nbsp;'request'&nbsp;with&nbsp;a&nbsp;closure<br>
+that&nbsp;adds&nbsp;in&nbsp;the&nbsp;Authorization&nbsp;header&nbsp;and&nbsp;then&nbsp;calls&nbsp;the&nbsp;original<br>
+version&nbsp;of&nbsp;'request()'.</tt></dd></dl>
+
+<dl><dt><a name="SignedJwtAssertionCredentials-set_store"><strong>set_store</strong></a>(self, store)</dt><dd><tt>Set&nbsp;the&nbsp;<a href="#Storage">Storage</a>&nbsp;for&nbsp;the&nbsp;credential.<br>
+&nbsp;<br>
+Args:<br>
+&nbsp;&nbsp;store:&nbsp;<a href="#Storage">Storage</a>,&nbsp;an&nbsp;implementation&nbsp;of&nbsp;Stroage&nbsp;<a href="__builtin__.html#object">object</a>.<br>
+&nbsp;&nbsp;&nbsp;&nbsp;This&nbsp;is&nbsp;needed&nbsp;to&nbsp;store&nbsp;the&nbsp;latest&nbsp;access_token&nbsp;if&nbsp;it<br>
+&nbsp;&nbsp;&nbsp;&nbsp;has&nbsp;expired&nbsp;and&nbsp;been&nbsp;refreshed.&nbsp;&nbsp;This&nbsp;implementation&nbsp;uses<br>
+&nbsp;&nbsp;&nbsp;&nbsp;locking&nbsp;to&nbsp;check&nbsp;for&nbsp;updates&nbsp;before&nbsp;updating&nbsp;the<br>
+&nbsp;&nbsp;&nbsp;&nbsp;access_token.</tt></dd></dl>
+
+<dl><dt><a name="SignedJwtAssertionCredentials-to_json"><strong>to_json</strong></a>(self)</dt></dl>
+
+<hr>
+Data descriptors inherited from <a href="oauth2client.client.html#OAuth2Credentials">OAuth2Credentials</a>:<br>
+<dl><dt><strong>access_token_expired</strong></dt>
+<dd><tt>True&nbsp;if&nbsp;the&nbsp;credential&nbsp;is&nbsp;expired&nbsp;or&nbsp;invalid.<br>
+&nbsp;<br>
+If&nbsp;the&nbsp;token_expiry&nbsp;isn't&nbsp;set,&nbsp;we&nbsp;assume&nbsp;the&nbsp;token&nbsp;doesn't&nbsp;expire.</tt></dd>
+</dl>
+<hr>
+Class methods inherited from <a href="oauth2client.client.html#Credentials">Credentials</a>:<br>
+<dl><dt><a name="SignedJwtAssertionCredentials-new_from_json"><strong>new_from_json</strong></a>(cls, s)<font color="#909090"><font face="helvetica, arial"> from <a href="__builtin__.html#type">__builtin__.type</a></font></font></dt><dd><tt>Utility&nbsp;class&nbsp;method&nbsp;to&nbsp;instantiate&nbsp;a&nbsp;<a href="#Credentials">Credentials</a>&nbsp;subclass&nbsp;from&nbsp;a&nbsp;JSON<br>
+representation&nbsp;produced&nbsp;by&nbsp;<a href="#SignedJwtAssertionCredentials-to_json">to_json</a>().<br>
+&nbsp;<br>
+Args:<br>
+&nbsp;&nbsp;s:&nbsp;string,&nbsp;JSON&nbsp;from&nbsp;<a href="#SignedJwtAssertionCredentials-to_json">to_json</a>().<br>
+&nbsp;<br>
+Returns:<br>
+&nbsp;&nbsp;An&nbsp;instance&nbsp;of&nbsp;the&nbsp;subclass&nbsp;of&nbsp;<a href="#Credentials">Credentials</a>&nbsp;that&nbsp;was&nbsp;serialized&nbsp;with<br>
+&nbsp;&nbsp;<a href="#SignedJwtAssertionCredentials-to_json">to_json</a>().</tt></dd></dl>
+
+<hr>
+Data descriptors inherited from <a href="oauth2client.client.html#Credentials">Credentials</a>:<br>
+<dl><dt><strong>__dict__</strong></dt>
+<dd><tt>dictionary&nbsp;for&nbsp;instance&nbsp;variables&nbsp;(if&nbsp;defined)</tt></dd>
+</dl>
+<dl><dt><strong>__weakref__</strong></dt>
+<dd><tt>list&nbsp;of&nbsp;weak&nbsp;references&nbsp;to&nbsp;the&nbsp;object&nbsp;(if&nbsp;defined)</tt></dd>
+</dl>
+<hr>
+Data and other attributes inherited from <a href="oauth2client.client.html#Credentials">Credentials</a>:<br>
+<dl><dt><strong>NON_SERIALIZED_MEMBERS</strong> = ['store']</dl>
+
+</td></tr></table> <p>
+<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
+<tr bgcolor="#ffc8d8">
+<td colspan=3 valign=bottom>&nbsp;<br>
 <font color="#000000" face="helvetica, arial"><a name="Storage">class <strong>Storage</strong></a>(<a href="__builtin__.html#object">__builtin__.object</a>)</font></td></tr>
     
 <tr bgcolor="#ffc8d8"><td rowspan=2><tt>&nbsp;&nbsp;&nbsp;</tt></td>
@@ -883,7 +1004,7 @@
 </dl>
 <hr>
 Methods inherited from <a href="exceptions.html#Exception">exceptions.Exception</a>:<br>
-<dl><dt><a name="UnknownClientSecretsFlowError-__init__"><strong>__init__</strong></a>(...)</dt><dd><tt>x.<a href="#UnknownClientSecretsFlowError-__init__">__init__</a>(...)&nbsp;initializes&nbsp;x;&nbsp;see&nbsp;help(type(x))&nbsp;for&nbsp;signature</tt></dd></dl>
+<dl><dt><a name="UnknownClientSecretsFlowError-__init__"><strong>__init__</strong></a>(...)</dt><dd><tt>x.<a href="#UnknownClientSecretsFlowError-__init__">__init__</a>(...)&nbsp;initializes&nbsp;x;&nbsp;see&nbsp;x.__class__.__doc__&nbsp;for&nbsp;signature</tt></dd></dl>
 
 <hr>
 Data and other attributes inherited from <a href="exceptions.html#Exception">exceptions.Exception</a>:<br>
@@ -921,6 +1042,67 @@
 </dl>
 <dl><dt><strong>message</strong></dt>
 </dl>
+</td></tr></table> <p>
+<table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
+<tr bgcolor="#ffc8d8">
+<td colspan=3 valign=bottom>&nbsp;<br>
+<font color="#000000" face="helvetica, arial"><a name="VerifyJwtTokenError">class <strong>VerifyJwtTokenError</strong></a>(<a href="oauth2client.client.html#Error">Error</a>)</font></td></tr>
+    
+<tr bgcolor="#ffc8d8"><td rowspan=2><tt>&nbsp;&nbsp;&nbsp;</tt></td>
+<td colspan=2><tt>Could&nbsp;on&nbsp;retrieve&nbsp;certificates&nbsp;for&nbsp;validation.<br>&nbsp;</tt></td></tr>
+<tr><td>&nbsp;</td>
+<td width="100%"><dl><dt>Method resolution order:</dt>
+<dd><a href="oauth2client.client.html#VerifyJwtTokenError">VerifyJwtTokenError</a></dd>
+<dd><a href="oauth2client.client.html#Error">Error</a></dd>
+<dd><a href="exceptions.html#Exception">exceptions.Exception</a></dd>
+<dd><a href="exceptions.html#BaseException">exceptions.BaseException</a></dd>
+<dd><a href="__builtin__.html#object">__builtin__.object</a></dd>
+</dl>
+<hr>
+Data descriptors inherited from <a href="oauth2client.client.html#Error">Error</a>:<br>
+<dl><dt><strong>__weakref__</strong></dt>
+<dd><tt>list&nbsp;of&nbsp;weak&nbsp;references&nbsp;to&nbsp;the&nbsp;object&nbsp;(if&nbsp;defined)</tt></dd>
+</dl>
+<hr>
+Methods inherited from <a href="exceptions.html#Exception">exceptions.Exception</a>:<br>
+<dl><dt><a name="VerifyJwtTokenError-__init__"><strong>__init__</strong></a>(...)</dt><dd><tt>x.<a href="#VerifyJwtTokenError-__init__">__init__</a>(...)&nbsp;initializes&nbsp;x;&nbsp;see&nbsp;x.__class__.__doc__&nbsp;for&nbsp;signature</tt></dd></dl>
+
+<hr>
+Data and other attributes inherited from <a href="exceptions.html#Exception">exceptions.Exception</a>:<br>
+<dl><dt><strong>__new__</strong> = &lt;built-in method __new__ of type object&gt;<dd><tt>T.<a href="#VerifyJwtTokenError-__new__">__new__</a>(S,&nbsp;...)&nbsp;-&gt;&nbsp;a&nbsp;new&nbsp;<a href="__builtin__.html#object">object</a>&nbsp;with&nbsp;type&nbsp;S,&nbsp;a&nbsp;subtype&nbsp;of&nbsp;T</tt></dl>
+
+<hr>
+Methods inherited from <a href="exceptions.html#BaseException">exceptions.BaseException</a>:<br>
+<dl><dt><a name="VerifyJwtTokenError-__delattr__"><strong>__delattr__</strong></a>(...)</dt><dd><tt>x.<a href="#VerifyJwtTokenError-__delattr__">__delattr__</a>('name')&nbsp;&lt;==&gt;&nbsp;del&nbsp;x.name</tt></dd></dl>
+
+<dl><dt><a name="VerifyJwtTokenError-__getattribute__"><strong>__getattribute__</strong></a>(...)</dt><dd><tt>x.<a href="#VerifyJwtTokenError-__getattribute__">__getattribute__</a>('name')&nbsp;&lt;==&gt;&nbsp;x.name</tt></dd></dl>
+
+<dl><dt><a name="VerifyJwtTokenError-__getitem__"><strong>__getitem__</strong></a>(...)</dt><dd><tt>x.<a href="#VerifyJwtTokenError-__getitem__">__getitem__</a>(y)&nbsp;&lt;==&gt;&nbsp;x[y]</tt></dd></dl>
+
+<dl><dt><a name="VerifyJwtTokenError-__getslice__"><strong>__getslice__</strong></a>(...)</dt><dd><tt>x.<a href="#VerifyJwtTokenError-__getslice__">__getslice__</a>(i,&nbsp;j)&nbsp;&lt;==&gt;&nbsp;x[i:j]<br>
+&nbsp;<br>
+Use&nbsp;of&nbsp;negative&nbsp;indices&nbsp;is&nbsp;not&nbsp;supported.</tt></dd></dl>
+
+<dl><dt><a name="VerifyJwtTokenError-__reduce__"><strong>__reduce__</strong></a>(...)</dt></dl>
+
+<dl><dt><a name="VerifyJwtTokenError-__repr__"><strong>__repr__</strong></a>(...)</dt><dd><tt>x.<a href="#VerifyJwtTokenError-__repr__">__repr__</a>()&nbsp;&lt;==&gt;&nbsp;repr(x)</tt></dd></dl>
+
+<dl><dt><a name="VerifyJwtTokenError-__setattr__"><strong>__setattr__</strong></a>(...)</dt><dd><tt>x.<a href="#VerifyJwtTokenError-__setattr__">__setattr__</a>('name',&nbsp;value)&nbsp;&lt;==&gt;&nbsp;x.name&nbsp;=&nbsp;value</tt></dd></dl>
+
+<dl><dt><a name="VerifyJwtTokenError-__setstate__"><strong>__setstate__</strong></a>(...)</dt></dl>
+
+<dl><dt><a name="VerifyJwtTokenError-__str__"><strong>__str__</strong></a>(...)</dt><dd><tt>x.<a href="#VerifyJwtTokenError-__str__">__str__</a>()&nbsp;&lt;==&gt;&nbsp;str(x)</tt></dd></dl>
+
+<dl><dt><a name="VerifyJwtTokenError-__unicode__"><strong>__unicode__</strong></a>(...)</dt></dl>
+
+<hr>
+Data descriptors inherited from <a href="exceptions.html#BaseException">exceptions.BaseException</a>:<br>
+<dl><dt><strong>__dict__</strong></dt>
+</dl>
+<dl><dt><strong>args</strong></dt>
+</dl>
+<dl><dt><strong>message</strong></dt>
+</dl>
 </td></tr></table></td></tr></table><p>
 <table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
 <tr bgcolor="#eeaa77">
@@ -948,6 +1130,21 @@
 &nbsp;&nbsp;<a href="#UnknownClientSecretsFlowError">UnknownClientSecretsFlowError</a>&nbsp;if&nbsp;the&nbsp;file&nbsp;describes&nbsp;an&nbsp;unknown&nbsp;kind&nbsp;of&nbsp;<a href="#Flow">Flow</a>.<br>
 &nbsp;&nbsp;clientsecrets.InvalidClientSecretsError&nbsp;if&nbsp;the&nbsp;clientsecrets&nbsp;file&nbsp;is<br>
 &nbsp;&nbsp;&nbsp;&nbsp;invalid.</tt></dd></dl>
+ <dl><dt><a name="-verify_id_token"><strong>verify_id_token</strong></a>(id_token, audience, http<font color="#909090">=None</font>, cert_uri<font color="#909090">='https://www.googleapis.com/oauth2/v1/certs'</font>)</dt><dd><tt>Verifies&nbsp;a&nbsp;signed&nbsp;JWT&nbsp;id_token.<br>
+&nbsp;<br>
+Args:<br>
+&nbsp;&nbsp;id_token:&nbsp;string,&nbsp;A&nbsp;Signed&nbsp;JWT.<br>
+&nbsp;&nbsp;audience:&nbsp;string,&nbsp;The&nbsp;audience&nbsp;'aud'&nbsp;that&nbsp;the&nbsp;token&nbsp;should&nbsp;be&nbsp;for.<br>
+&nbsp;&nbsp;http:&nbsp;httplib2.Http,&nbsp;instance&nbsp;to&nbsp;use&nbsp;to&nbsp;make&nbsp;the&nbsp;HTTP&nbsp;request.&nbsp;Callers<br>
+&nbsp;&nbsp;&nbsp;&nbsp;should&nbsp;supply&nbsp;an&nbsp;instance&nbsp;that&nbsp;has&nbsp;caching&nbsp;enabled.<br>
+&nbsp;&nbsp;cert_uri:&nbsp;string,&nbsp;URI&nbsp;of&nbsp;the&nbsp;certificates&nbsp;in&nbsp;JSON&nbsp;format&nbsp;to<br>
+&nbsp;&nbsp;&nbsp;&nbsp;verify&nbsp;the&nbsp;JWT&nbsp;against.<br>
+&nbsp;<br>
+Returns:<br>
+&nbsp;&nbsp;The&nbsp;deserialized&nbsp;JSON&nbsp;in&nbsp;the&nbsp;JWT.<br>
+&nbsp;<br>
+Raises:<br>
+&nbsp;&nbsp;oauth2client.crypt.AppIdentityError&nbsp;if&nbsp;the&nbsp;JWT&nbsp;fails&nbsp;to&nbsp;verify.</tt></dd></dl>
 </td></tr></table><p>
 <table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
 <tr bgcolor="#55aa55">
@@ -955,9 +1152,12 @@
 <font color="#ffffff" face="helvetica, arial"><big><strong>Data</strong></big></font></td></tr>
     
 <tr><td bgcolor="#55aa55"><tt>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</tt></td><td>&nbsp;</td>
-<td width="100%"><strong>EXPIRY_FORMAT</strong> = '%Y-%m-%dT%H:%M:%SZ'<br>
+<td width="100%"><strong>CACHED_HTTP</strong> = &lt;httplib2.Http object&gt;<br>
+<strong>EXPIRY_FORMAT</strong> = '%Y-%m-%dT%H:%M:%SZ'<br>
+<strong>HAS_OPENSSL</strong> = True<br>
+<strong>ID_TOKEN_VERIFICATON_CERTS</strong> = 'https://www.googleapis.com/oauth2/v1/certs'<br>
 <strong>__author__</strong> = 'jcgregorio@google.com (Joe Gregorio)'<br>
-<strong>logger</strong> = &lt;logging.Logger object&gt;</td></tr></table><p>
+<strong>logger</strong> = &lt;logging.Logger instance&gt;</td></tr></table><p>
 <table width="100%" cellspacing=0 cellpadding=2 border=0 summary="section">
 <tr bgcolor="#7799ee">
 <td colspan=3 valign=bottom>&nbsp;<br>