--- /dev/null
+<?xml version="1.0" encoding="UTF-8"?>
+<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified" targetNamespace="http://www.w3.org/2000/09/xmldsig#" xmlns:sig="http://www.w3.org/2000/09/xmldsig#">
+ <xs:import schemaLocation="credential.xsd"/>
+ <xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="xml.xsd"/>
+ <xs:element name="Signature">
+ <xs:complexType mixed="true">
+ <xs:group ref="anyelementbody"/>
+ <xs:attributeGroup ref="anyelementbody"/>
+ </xs:complexType>
+ </xs:element>
+</xs:schema>