diff --git a/lasso/xml/saml-2.0/saml2_strings.h b/lasso/xml/saml-2.0/saml2_strings.h
index b0505286..f6892125 100644
--- a/lasso/xml/saml-2.0/saml2_strings.h
+++ b/lasso/xml/saml-2.0/saml2_strings.h
@@ -414,4 +414,13 @@
 #define LASSO_SAML2_ATTRIBUTE_PROFILE_UUID "urn:oasis:names:tc:SAML:2.0:profiles:attribute:UUID"
 #define LASSO_SAML2_ATTRIBUTE_PROFILE_DCE "urn:oasis:names:tc:SAML:2.0:profiles:attribute:DCE"
 
+/* SAML 2.0 SSO Profile */
+
+#define LASSO_SAML2_ECP_PROFILE_WANT_AUTHN_SIGNED "urn:oasis:names:tc:SAML:2.0:profiles:SSO:ecp:2.0:WantAuthnRequestsSigned"
+
+/* SAML 2.0 Conditions */
+
+#define LASSO_SAML2_CONDITIONS_DELEGATION "urn:oasis:names:tc:SAML:2.0:conditions:delegation"
+
+
 #endif /* __LASSO_SAML2_STRINGS_H__ */
diff --git a/lasso/xml/strings.h b/lasso/xml/strings.h
index e0de9188..3abd53ee 100644
--- a/lasso/xml/strings.h
+++ b/lasso/xml/strings.h
@@ -927,6 +927,16 @@
 #define LASSO_SAML_CONFIRMATION_METHOD_SENDER_VOUCHES	 \
 	"urn:oasis:names:tc:SAML:1.0:cm:sender-vouches"
 
+/* Extensions */
+
+/**
+ * LASSO_SAML_EXT_CHANNEL_BINDING:
+ *
+ * Indicates support for channel binding
+ *
+ *
+#define LASSO_SAML_EXT_CHANNEL_BINDING "urn:oasis:names:tc:SAML:protocol:ext:channel-binding"
+
 /*****************************************************************************/
 /* POAS BINDING                                                              */
 /*****************************************************************************/