diff --git a/lib/exclusive-canonicalization.js b/lib/exclusive-canonicalization.js
index d750b60c..ce7a2997 100644
--- a/lib/exclusive-canonicalization.js
+++ b/lib/exclusive-canonicalization.js
@@ -14,11 +14,11 @@ ExclusiveCanonicalization.prototype.attrCompare = function(a,b) {
 
   var left = a.namespaceURI + a.localName
   var right = b.namespaceURI + b.localName
-  
+
   if (left===right) return 0
   else if (left<right) return -1
   else return 1
-  
+
 };
 
 ExclusiveCanonicalization.prototype.nsCompare = function(a,b) {
@@ -40,7 +40,6 @@ ExclusiveCanonicalization.prototype.renderAttrs = function(node, defaultNS) {
       attr = node.attributes[i];
       //ignore namespace definition attributes
       if (attr.name.indexOf("xmlns") === 0) { continue; }
-      if (!attr.namespaceURI && defaultNS) { attr.namespaceURI = defaultNS; }
       attrListToRender.push(attr);
     }
   }
@@ -123,7 +122,7 @@ ExclusiveCanonicalization.prototype.renderNs = function(node, prefixesInScope, d
 };
 
 ExclusiveCanonicalization.prototype.processInner = function(node, prefixesInScope, defaultNs, inclusiveNamespacesPrefixList) {
-  
+
   if (node.nodeType === 8) { return this.renderComment(node); }
   if (node.data) { return utils.normalizeXmlIncludingCR(node.data); }
 
diff --git a/package.json b/package.json
index 77c1a005..07d6b319 100644
--- a/package.json
+++ b/package.json
@@ -34,6 +34,6 @@
     }
   ],
   "scripts": {
-    "test": "nodeunit ./test/canonicalization-unit-tests.js ./test/c14nWithComments-unit-tests.js ./test/signature-unit-tests.js ./test/saml-response-test.js ./test/signature-integration-tests.js ./test/document-test.js"
+    "test": "nodeunit ./test/canonicalization-unit-tests.js ./test/c14nWithComments-unit-tests.js ./test/signature-unit-tests.js ./test/saml-response-test.js ./test/signature-integration-tests.js ./test/document-test.js ./test/wsfed-metadata-test.js"
   }
 }
diff --git a/test/static/wsfederation_metadata.pem b/test/static/wsfederation_metadata.pem
new file mode 100644
index 00000000..656364c0
--- /dev/null
+++ b/test/static/wsfederation_metadata.pem
@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
diff --git a/test/static/wsfederation_metadata.xml b/test/static/wsfederation_metadata.xml
new file mode 100644
index 00000000..e21d104b
--- /dev/null
+++ b/test/static/wsfederation_metadata.xml
@@ -0,0 +1 @@
+<?xml version="1.0" encoding="utf-8"?><EntityDescriptor ID="_8d1dcc18-2f1e-4a93-850b-e3a3081b3ca1" entityID="https://sts.windows.net/8bd6e98d-e212-4022-b13f-a244fab4c253/" xmlns="urn:oasis:names:tc:SAML:2.0:metadata"><ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#"><ds:SignedInfo><ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#" /><ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256" /><ds:Reference URI="#_8d1dcc18-2f1e-4a93-850b-e3a3081b3ca1"><ds:Transforms><ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature" /><ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#" /></ds:Transforms><ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256" /><ds:DigestValue>qIVhfzD3HVMA4BUQZ+zUF6AlFgcL7FyQ8tN35NZWFJs=</ds:DigestValue></ds:Reference></ds:SignedInfo><ds:SignatureValue>HxgwvF+xtlUb4Qa9AzEiti4X3rHu6xWOmew2sVH+BBWpuwhDWWPxK9hHVhYYcuCHZDBnN7LLTY1L80/D2+KruNug9B1kOb6c3S/VWV09wbmIyocG1nH4/FGQf8+AU7ajFizG+ODhfJY0xEOag1E5cwXqrM4ULu6HBSAkLDNBA85m8qi/UAd6INyel0DzwfANvjz34VZOLMX+rydyXoKhSpKoBlip1eHdUdzOM4HtlnemIZhMkgofNjxbFjRNwPclizwWJuF0I0Xj1jwT8wR4X7wWvPO9JgxgR6CixveZRt/is5IVgKl/UeqHCzS/a5tYatoF0o35byC0E2ehOJGCBw==</ds:SignatureValue><KeyInfo xmlns="http://www.w3.org/2000/09/xmldsig#"><X509Data><X509Certificate>MIIC4jCCAcqgAwIBAgIQQNXrmzhLN4VGlUXDYCRT3zANBgkqhkiG9w0BAQsFADAtMSswKQYDVQQDEyJhY2NvdW50cy5hY2Nlc3Njb250cm9sLndpbmRvd3MubmV0MB4XDTE0MTAyODAwMDAwMFoXDTE2MTAyNzAwMDAwMFowLTErMCkGA1UEAxMiYWNjb3VudHMuYWNjZXNzY29udHJvbC53aW5kb3dzLm5ldDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBALyKs/uPhEf7zVizjfcr/ISGFe9+yUOqwpel38zgutvLHmFD39E2hpPdQhcXn4c4dt1fU5KvkbcDdVbP8+e4TvNpJMy/nEB2V92zCQ/hhBjilwhF1ETe1TMmVjALs0KFvbxW9ZN3EdUVvxFvz/gvG29nQhl4QWKj3x8opr89lmq14Z7T0mzOV8kub+cgsOU/1bsKqrIqN1fMKKFhjKaetctdjYTfGzVQ0AJAzzbtg0/Q1wdYNAnhSDafygEv6kNiquk0r0RyasUUevEXs2LY3vSgKsKseI8ZZlQEMtE9/k/iAG7JNcEbVg53YTurNTrPnXJOU88mf3TToX14HpYsS1ECAwEAATANBgkqhkiG9w0BAQsFAAOCAQEAfolx45w0i8CdAUjjeAaYdhG9+NDHxop0UvNOqlGqYJexqPLuvX8iyUaYxNGzZxFgGI3GpKfmQP2JQWQ1E5JtY/n8iNLOKRMwqkuxSCKJxZJq4Sl/m/Yv7TS1P5LNgAj8QLCypxsWrTAmq2HSpkeSk4JBtsYxX6uhbGM/K1sEktKybVTHu22/7TmRqWTmOUy9wQvMjJb2IXdMGLG3hVntN/WWcs5w8vbt1i8Kk6o19W2MjZ95JaECKjBDYRlhG1KmSBtrsKsCBQoBzwH/rXfksTO9JoUYLXiW0IppB7DhNH4PJ5hZI91R8rR0H3/bKkLSuDaKLWSqMhozdhXsIIKvJQ==</X509Certificate></X509Data></KeyInfo></ds:Signature><RoleDescriptor xsi:type="fed:SecurityTokenServiceType" protocolSupportEnumeration="http://docs.oasis-open.org/wsfed/federation/200706" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:fed="http://docs.oasis-open.org/wsfed/federation/200706"><KeyDescriptor use="signing"><KeyInfo xmlns="http://www.w3.org/2000/09/xmldsig#"><X509Data><X509Certificate>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</X509Certificate></X509Data></KeyInfo></KeyDescriptor><KeyDescriptor use="signing"><KeyInfo xmlns="http://www.w3.org/2000/09/xmldsig#"><X509Data><X509Certificate>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</X509Certificate></X509Data></KeyInfo></KeyDescriptor><fed:ClaimTypesOffered><auth:ClaimType Uri="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name" Optional="true" xmlns:auth="http://docs.oasis-open.org/wsfed/authorization/200706"><auth:DisplayName>Name</auth:DisplayName><auth:Description>The mutable display name of the user.</auth:Description></auth:ClaimType><auth:ClaimType Uri="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/nameidentifier" Optional="true" xmlns:auth="http://docs.oasis-open.org/wsfed/authorization/200706"><auth:DisplayName>Subject</auth:DisplayName><auth:Description>An immutable, globally unique, non-reusable identifier of the user that is unique to the application for which a token is issued.</auth:Description></auth:ClaimType><auth:ClaimType Uri="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/givenname" Optional="true" xmlns:auth="http://docs.oasis-open.org/wsfed/authorization/200706"><auth:DisplayName>Given Name</auth:DisplayName><auth:Description>First name of the user.</auth:Description></auth:ClaimType><auth:ClaimType Uri="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/surname" Optional="true" xmlns:auth="http://docs.oasis-open.org/wsfed/authorization/200706"><auth:DisplayName>Surname</auth:DisplayName><auth:Description>Last name of the user.</auth:Description></auth:ClaimType><auth:ClaimType Uri="http://schemas.microsoft.com/identity/claims/displayname" Optional="true" xmlns:auth="http://docs.oasis-open.org/wsfed/authorization/200706"><auth:DisplayName>Display Name</auth:DisplayName><auth:Description>Display name of the user.</auth:Description></auth:ClaimType><auth:ClaimType Uri="http://schemas.microsoft.com/identity/claims/nickname" Optional="true" xmlns:auth="http://docs.oasis-open.org/wsfed/authorization/200706"><auth:DisplayName>Nick Name</auth:DisplayName><auth:Description>Nick name of the user.</auth:Description></auth:ClaimType><auth:ClaimType Uri="http://schemas.microsoft.com/ws/2008/06/identity/claims/authenticationinstant" Optional="true" xmlns:auth="http://docs.oasis-open.org/wsfed/authorization/200706"><auth:DisplayName>Authentication Instant</auth:DisplayName><auth:Description>The time (UTC) when the user is authenticated to Windows Azure Active Directory.</auth:Description></auth:ClaimType><auth:ClaimType Uri="http://schemas.microsoft.com/ws/2008/06/identity/claims/authenticationmethod" Optional="true" xmlns:auth="http://docs.oasis-open.org/wsfed/authorization/200706"><auth:DisplayName>Authentication Method</auth:DisplayName><auth:Description>The method that Windows Azure Active Directory uses to authenticate users.</auth:Description></auth:ClaimType><auth:ClaimType Uri="http://schemas.microsoft.com/identity/claims/objectidentifier" Optional="true" xmlns:auth="http://docs.oasis-open.org/wsfed/authorization/200706"><auth:DisplayName>ObjectIdentifier</auth:DisplayName><auth:Description>Primary identifier for the user in the directory. Immutable, globally unique, non-reusable.</auth:Description></auth:ClaimType><auth:ClaimType Uri="http://schemas.microsoft.com/identity/claims/tenantid" Optional="true" xmlns:auth="http://docs.oasis-open.org/wsfed/authorization/200706"><auth:DisplayName>TenantId</auth:DisplayName><auth:Description>Identifier for the user's tenant.</auth:Description></auth:ClaimType><auth:ClaimType Uri="http://schemas.microsoft.com/identity/claims/identityprovider" Optional="true" xmlns:auth="http://docs.oasis-open.org/wsfed/authorization/200706"><auth:DisplayName>IdentityProvider</auth:DisplayName><auth:Description>Identity provider for the user.</auth:Description></auth:ClaimType><auth:ClaimType Uri="http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress" Optional="true" xmlns:auth="http://docs.oasis-open.org/wsfed/authorization/200706"><auth:DisplayName>Email</auth:DisplayName><auth:Description>Email address of the user.</auth:Description></auth:ClaimType><auth:ClaimType Uri="http://schemas.microsoft.com/ws/2008/06/identity/claims/groups" Optional="true" xmlns:auth="http://docs.oasis-open.org/wsfed/authorization/200706"><auth:DisplayName>Groups</auth:DisplayName><auth:Description>Groups of the user.</auth:Description></auth:ClaimType><auth:ClaimType Uri="http://schemas.microsoft.com/identity/claims/accesstoken" Optional="true" xmlns:auth="http://docs.oasis-open.org/wsfed/authorization/200706"><auth:DisplayName>External Access Token</auth:DisplayName><auth:Description>Access token issued by external identity provider.</auth:Description></auth:ClaimType><auth:ClaimType Uri="http://schemas.microsoft.com/ws/2008/06/identity/claims/expiration" Optional="true" xmlns:auth="http://docs.oasis-open.org/wsfed/authorization/200706"><auth:DisplayName>External Access Token Expiration</auth:DisplayName><auth:Description>UTC expiration time of access token issued by external identity provider.</auth:Description></auth:ClaimType><auth:ClaimType Uri="http://schemas.microsoft.com/identity/claims/openid2_id" Optional="true" xmlns:auth="http://docs.oasis-open.org/wsfed/authorization/200706"><auth:DisplayName>External OpenID 2.0 Identifier</auth:DisplayName><auth:Description>OpenID 2.0 identifier issued by external identity provider.</auth:Description></auth:ClaimType><auth:ClaimType Uri="http://schemas.microsoft.com/claims/groups.link" Optional="true" xmlns:auth="http://docs.oasis-open.org/wsfed/authorization/200706"><auth:DisplayName>GroupsOverageClaim</auth:DisplayName><auth:Description>Issued when number of user's group claims exceeds return limit.</auth:Description></auth:ClaimType><auth:ClaimType Uri="http://schemas.microsoft.com/ws/2008/06/identity/claims/role" Optional="true" xmlns:auth="http://docs.oasis-open.org/wsfed/authorization/200706"><auth:DisplayName>Role Claim</auth:DisplayName><auth:Description>Roles that the user or Service Principal is attached to</auth:Description></auth:ClaimType><auth:ClaimType Uri="http://schemas.microsoft.com/ws/2008/06/identity/claims/wids" Optional="true" xmlns:auth="http://docs.oasis-open.org/wsfed/authorization/200706"><auth:DisplayName>RoleTemplate Id Claim</auth:DisplayName><auth:Description>Role template id of the Built-in Directory Roles that the user is a member of</auth:Description></auth:ClaimType></fed:ClaimTypesOffered><fed:SecurityTokenServiceEndpoint><EndpointReference xmlns="http://www.w3.org/2005/08/addressing"><Address>https://login.windows.net/8bd6e98d-e212-4022-b13f-a244fab4c253/wsfed</Address></EndpointReference></fed:SecurityTokenServiceEndpoint><fed:PassiveRequestorEndpoint><EndpointReference xmlns="http://www.w3.org/2005/08/addressing"><Address>https://login.windows.net/8bd6e98d-e212-4022-b13f-a244fab4c253/wsfed</Address></EndpointReference></fed:PassiveRequestorEndpoint></RoleDescriptor><RoleDescriptor xsi:type="fed:ApplicationServiceType" protocolSupportEnumeration="http://docs.oasis-open.org/wsfed/federation/200706" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:fed="http://docs.oasis-open.org/wsfed/federation/200706"><KeyDescriptor use="signing"><KeyInfo xmlns="http://www.w3.org/2000/09/xmldsig#"><X509Data><X509Certificate>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</X509Certificate></X509Data></KeyInfo></KeyDescriptor><KeyDescriptor use="signing"><KeyInfo xmlns="http://www.w3.org/2000/09/xmldsig#"><X509Data><X509Certificate>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</X509Certificate></X509Data></KeyInfo></KeyDescriptor><fed:TargetScopes><EndpointReference xmlns="http://www.w3.org/2005/08/addressing"><Address>https://sts.windows.net/8bd6e98d-e212-4022-b13f-a244fab4c253/</Address></EndpointReference></fed:TargetScopes><fed:ApplicationServiceEndpoint><EndpointReference xmlns="http://www.w3.org/2005/08/addressing"><Address>https://login.windows.net/8bd6e98d-e212-4022-b13f-a244fab4c253/wsfed</Address></EndpointReference></fed:ApplicationServiceEndpoint><fed:PassiveRequestorEndpoint><EndpointReference xmlns="http://www.w3.org/2005/08/addressing"><Address>https://login.windows.net/8bd6e98d-e212-4022-b13f-a244fab4c253/wsfed</Address></EndpointReference></fed:PassiveRequestorEndpoint></RoleDescriptor><IDPSSODescriptor protocolSupportEnumeration="urn:oasis:names:tc:SAML:2.0:protocol"><KeyDescriptor use="signing"><KeyInfo xmlns="http://www.w3.org/2000/09/xmldsig#"><X509Data><X509Certificate>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</X509Certificate></X509Data></KeyInfo></KeyDescriptor><KeyDescriptor use="signing"><KeyInfo xmlns="http://www.w3.org/2000/09/xmldsig#"><X509Data><X509Certificate>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</X509Certificate></X509Data></KeyInfo></KeyDescriptor><SingleLogoutService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect" Location="https://login.windows.net/8bd6e98d-e212-4022-b13f-a244fab4c253/saml2" /><SingleSignOnService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-Redirect" Location="https://login.windows.net/8bd6e98d-e212-4022-b13f-a244fab4c253/saml2" /><SingleSignOnService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" Location="https://login.windows.net/8bd6e98d-e212-4022-b13f-a244fab4c253/saml2" /></IDPSSODescriptor></EntityDescriptor>
\ No newline at end of file
diff --git a/test/wsfed-metadata-test.js b/test/wsfed-metadata-test.js
new file mode 100644
index 00000000..c685b269
--- /dev/null
+++ b/test/wsfed-metadata-test.js
@@ -0,0 +1,15 @@
+var crypto = require('../index');
+var xmldom = require('xmldom');
+var fs = require('fs');
+
+exports['test validating WS-Fed Metadata'] = function (test) {
+  var xml = fs.readFileSync('./test/static/wsfederation_metadata.xml', 'utf-8');
+  var doc = new xmldom.DOMParser().parseFromString(xml);
+  var signature = crypto.xpath(doc, "/*/*[local-name(.)='Signature' and namespace-uri(.)='http://www.w3.org/2000/09/xmldsig#']")[0];
+  var sig = new crypto.SignedXml();
+  sig.keyInfoProvider = new crypto.FileKeyInfo("./test/static/wsfederation_metadata.pem");
+  sig.loadSignature(signature);
+  var result = sig.checkSignature(xml);
+  test.equal(result, true);
+  test.done();
+};