<?xml version="1.0" encoding="utf-8"?><!-- Schema for XML Signatures    http://www.w3.org/2000/09/xmldsig#    $Revision: 1.1.38.1 $ on $Date: 2006/06/13 16:00:19 $ by $Author: gawor $    Copyright 2001 The Internet Society and W3C (Massachusetts Institute    of Technology, Institut National de Recherche en Informatique et en    Automatique, Keio University). All Rights Reserved.    http://www.w3.org/Consortium/Legal/    This document is governed by the W3C Software License [1] as described    in the FAQ [2].    [1] http://www.w3.org/Consortium/Legal/copyright-software-19980720    [2] http://www.w3.org/Consortium/Legal/IPR-FAQ-20000620.html#DTD--><schema xmlns="http://www.w3.org/2001/XMLSchema"        xmlns:ds="http://www.w3.org/2000/09/xmldsig#"        targetNamespace="http://www.w3.org/2000/09/xmldsig#"        version="0.1" elementFormDefault="qualified"> <!-- Basic Types Defined for Signatures --><simpleType name="CryptoBinary">  <restriction base="base64Binary">  </restriction></simpleType><!-- Start Signature --><element name="Signature" type="ds:SignatureType"/><complexType name="SignatureType">  <sequence>     <element ref="ds:SignedInfo"/>     <element ref="ds:SignatureValue"/>     <element ref="ds:KeyInfo" minOccurs="0"/>     <element ref="ds:Object" minOccurs="0" maxOccurs="unbounded"/>   </sequence>    <attribute name="Id" type="ID" use="optional"/></complexType>  <element name="SignatureValue" type="ds:SignatureValueType"/>   <complexType name="SignatureValueType">    <simpleContent>      <extension base="base64Binary">        <attribute name="Id" type="ID" use="optional"/>      </extension>    </simpleContent>  </complexType><!-- Start SignedInfo --><element name="SignedInfo" type="ds:SignedInfoType"/><complexType name="SignedInfoType">  <sequence>     <element ref="ds:CanonicalizationMethod"/>     <element ref="ds:SignatureMethod"/>     <element ref="ds:Reference" maxOccurs="unbounded"/>   </sequence>    <attribute name="Id" type="ID" use="optional"/> </complexType>  <element name="CanonicalizationMethod" type="ds:CanonicalizationMethodType"/>   <complexType name="CanonicalizationMethodType" mixed="true">    <sequence>      <any namespace="##any" minOccurs="0" maxOccurs="unbounded"/>      <!-- (0,unbounded) elements from (1,1) namespace -->    </sequence>    <attribute name="Algorithm" type="anyURI" use="required"/>   </complexType>  <element name="SignatureMethod" type="ds:SignatureMethodType"/>  <complexType name="SignatureMethodType" mixed="true">    <sequence>      <element name="HMACOutputLength" minOccurs="0" type="ds:HMACOutputLengthType"/>      <any namespace="##other" minOccurs="0" maxOccurs="unbounded"/>      <!-- (0,unbounded) elements from (1,1) external namespace -->    </sequence>    <attribute name="Algorithm" type="anyURI" use="required"/>   </complexType><!-- Start Reference --><element name="Reference" type="ds:ReferenceType"/><complexType name="ReferenceType">  <sequence>     <element ref="ds:Transforms" minOccurs="0"/>     <element ref="ds:DigestMethod"/>     <element ref="ds:DigestValue"/>   </sequence>  <attribute name="Id" type="ID" use="optional"/>   <attribute name="URI" type="anyURI" use="optional"/>   <attribute name="Type" type="anyURI" use="optional"/> </complexType>  <element name="Transforms" type="ds:TransformsType"/>  <complexType name="TransformsType">    <sequence>      <element ref="ds:Transform" maxOccurs="unbounded"/>      </sequence>  </complexType>  <element name="Transform" type="ds:TransformType"/>  <complexType name="TransformType" mixed="true">    <choice minOccurs="0" maxOccurs="unbounded">       <any namespace="##other" processContents="lax"/>      <!-- (1,1) elements from (0,unbounded) namespaces -->      <element name="XPath" type="string"/>     </choice>    <attribute name="Algorithm" type="anyURI" use="required"/>   </complexType><!-- End Reference --><element name="DigestMethod" type="ds:DigestMethodType"/><complexType name="DigestMethodType" mixed="true">   <sequence>    <any namespace="##other" processContents="lax" minOccurs="0" maxOccurs="unbounded"/>  </sequence>      <attribute name="Algorithm" type="anyURI" use="required"/> </complexType><element name="DigestValue" type="ds:DigestValueType"/><simpleType name="DigestValueType">  <restriction base="base64Binary"/></simpleType><!-- End SignedInfo --><!-- Start KeyInfo --><element name="KeyInfo" type="ds:KeyInfoType"/> <complexType name="KeyInfoType" mixed="true">  <choice maxOccurs="unbounded">         <element ref="ds:KeyName"/>     <element ref="ds:KeyValue"/>     <element ref="ds:RetrievalMethod"/>     <element ref="ds:X509Data"/>     <element ref="ds:PGPData"/>     <element ref="ds:SPKIData"/>    <element ref="ds:MgmtData"/>    <any processContents="lax" namespace="##other"/>    <!-- (1,1) elements from (0,unbounded) namespaces -->  </choice>  <attribute name="Id" type="ID" use="optional"/> </complexType>  <element name="KeyName" type="string"/>  <element name="MgmtData" type="string"/>  <element name="KeyValue" type="ds:KeyValueType"/>   <complexType name="KeyValueType" mixed="true">   <choice>     <element ref="ds:DSAKeyValue"/>     <element ref="ds:RSAKeyValue"/>     <any namespace="##other" processContents="lax"/>   </choice>  </complexType>  <element name="RetrievalMethod" type="ds:RetrievalMethodType"/>   <complexType name="RetrievalMethodType">    <sequence>      <element ref="ds:Transforms" minOccurs="0"/>     </sequence>      <attribute name="URI" type="anyURI"/>    <attribute name="Type" type="anyURI" use="optional"/>  </complexType><!-- Start X509Data --><element name="X509Data" type="ds:X509DataType"/> <complexType name="X509DataType">  <sequence maxOccurs="unbounded">    <choice>      <element name="X509IssuerSerial" type="ds:X509IssuerSerialType"/>      <element name="X509SKI" type="base64Binary"/>      <element name="X509SubjectName" type="string"/>      <element name="X509Certificate" type="base64Binary"/>      <element name="X509CRL" type="base64Binary"/>      <any namespace="##other" processContents="lax"/>    </choice>  </sequence></complexType><complexType name="X509IssuerSerialType">   <sequence>     <element name="X509IssuerName" type="string"/>     <element name="X509SerialNumber" type="integer"/>   </sequence></complexType><!-- End X509Data --><!-- Begin PGPData --><element name="PGPData" type="ds:PGPDataType"/> <complexType name="PGPDataType">   <choice>    <sequence>      <element name="PGPKeyID" type="base64Binary"/>       <element name="PGPKeyPacket" type="base64Binary" minOccurs="0"/>       <any namespace="##other" processContents="lax" minOccurs="0"       maxOccurs="unbounded"/>    </sequence>    <sequence>      <element name="PGPKeyPacket" type="base64Binary"/>       <any namespace="##other" processContents="lax" minOccurs="0"       maxOccurs="unbounded"/>    </sequence>  </choice></complexType><!-- End PGPData --><!-- Begin SPKIData --><element name="SPKIData" type="ds:SPKIDataType"/> <complexType name="SPKIDataType">  <sequence maxOccurs="unbounded">    <element name="SPKISexp" type="base64Binary"/>    <any namespace="##other" processContents="lax" minOccurs="0"/>  </sequence></complexType> <!-- End SPKIData --><!-- End KeyInfo --><!-- Start Object (Manifest, SignatureProperty) --><element name="Object" type="ds:ObjectType"/> <complexType name="ObjectType" mixed="true">  <sequence minOccurs="0" maxOccurs="unbounded">    <any namespace="##any" processContents="lax"/>  </sequence>  <attribute name="Id" type="ID" use="optional"/>   <attribute name="MimeType" type="string" use="optional"/> <!-- add a grep facet -->  <attribute name="Encoding" type="anyURI" use="optional"/> </complexType><element name="Manifest" type="ds:ManifestType"/> <complexType name="ManifestType">  <sequence>    <element ref="ds:Reference" maxOccurs="unbounded"/>   </sequence>  <attribute name="Id" type="ID" use="optional"/> </complexType><element name="SignatureProperties" type="ds:SignaturePropertiesType"/> <complexType name="SignaturePropertiesType">  <sequence>    <element ref="ds:SignatureProperty" maxOccurs="unbounded"/>   </sequence>  <attribute name="Id" type="ID" use="optional"/> </complexType>   <element name="SignatureProperty" type="ds:SignaturePropertyType"/>    <complexType name="SignaturePropertyType" mixed="true">     <choice maxOccurs="unbounded">       <any namespace="##other" processContents="lax"/>       <!-- (1,1) elements from (1,unbounded) namespaces -->     </choice>     <attribute name="Target" type="anyURI" use="required"/>      <attribute name="Id" type="ID" use="optional"/>    </complexType><!-- End Object (Manifest, SignatureProperty) --><!-- Start Algorithm Parameters --><simpleType name="HMACOutputLengthType">  <restriction base="integer"/></simpleType><!-- Start KeyValue Element-types --><element name="DSAKeyValue" type="ds:DSAKeyValueType"/><complexType name="DSAKeyValueType">  <sequence>    <sequence minOccurs="0">      <element name="P" type="ds:CryptoBinary"/>      <element name="Q" type="ds:CryptoBinary"/>    </sequence>    <element name="G" type="ds:CryptoBinary" minOccurs="0"/>    <element name="Y" type="ds:CryptoBinary"/>    <element name="J" type="ds:CryptoBinary" minOccurs="0"/>    <sequence minOccurs="0">      <element name="Seed" type="ds:CryptoBinary"/>      <element name="PgenCounter" type="ds:CryptoBinary"/>    </sequence>  </sequence></complexType><element name="RSAKeyValue" type="ds:RSAKeyValueType"/><complexType name="RSAKeyValueType">  <sequence>    <element name="Modulus" type="ds:CryptoBinary"/>     <element name="Exponent" type="ds:CryptoBinary"/>   </sequence></complexType> <!-- End KeyValue Element-types --><!-- End Signature --></schema>