<attribute name="Id" type="ID" use="optional"/>
</complexType>
+ <element name="X509Digest" type="dsig11:X509DigestType"/>
+ <complexType name="X509DigestType">
+ <simpleContent>
+ <extension base="base64Binary">
+ <attribute name="Algorithm" type="anyURI" use="required"/>
+ </extension>
+ </simpleContent>
+ </complexType>
+
</schema>