Ошибка проверки XML-схемы

У меня есть мой XML-файл как

 <?xml version="1.0" encoding="ISO-8859-1"?>
 <Info>
 <Pan>123</Pan>
 <Name>qwe</Name>
 <Email>qwe</Email>
 <City>qwe</City>
 <State>qwe</State>
 <AssessmentYear>2012</AssessmentYear>
 <MobileNo>1234</MobileNo>
 <Income-Salary>1234</Income-Salary>
 <Income-Other>1234</Income-Other>
 <TotalAmount>122</TotalAmount>
<Signature> 
<SignedInfo>
 <CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
 <SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/>
 <Reference URI=""><Transforms><Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/><Transform Algorithm="http://www.w3.org/TR/1999/REC-xslt-19991116"><xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:output method="text"/>
<xsl:template match="/">
Pan : <xsl:copy-of select="//Pan"/>

MobileNo : <xsl:copy-of select="//MobileNo"/>

TotalAmount : <xsl:copy-of select="//TotalAmount"/>
</xsl:template>
</xsl:stylesheet></Transform></Transforms><DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/><DigestValue>FgbIIimTLIbd0Zpvq1zDrZse6aJg5bAE1/Q58cEkEvk=</DigestValue></Reference>
 </SignedInfo>
<SignatureValue>dy4QDco5NhXResncu0tUG5ylujDn9siIQSHjuX5HxH2gs70LpsO3KDWNvDXjpgkIySYfzJ/FdC6C
trkSySWRjhObqI8cbcP5VU/nL8pP21+3CO+gF1k884aeX3felpRy0FBBMTYBknQTunWCHvpHk927
ZHGvm6Hiej7iBKr3e1k=</SignatureValue>
</Signature>
</Info>

Мои файлы схемы для этого XML-файла выглядит следующим образом (c1.xsd)

<?xml version="1.0" encoding="ISO-8859-1" ?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
<xs:import namespace="http://www.w3.org/2000/09/xmldsig#" schemaLocation="C:\\xml\\c2.xsd"/>
<xs:element name="Info">
  <xs:complexType>

  <xs:sequence>
      <xs:element name="Pan" type="xs:string"/>
      <xs:element name="Name" type="xs:string"/>
      <xs:element name="Email" type="xs:string"/>
      <xs:element name="City" type="xs:string"/>
      <xs:element name="State" type="xs:string"/>
      <xs:element name="AssessmentYear" type="xs:gYear"/>
      <xs:element name="MobileNo" type="xs:unsignedLong"/>
      <xs:element name="Income-Salary" type="xs:unsignedLong"/>
      <xs:element name="Income-Other" type="xs:unsignedLong"/>
      <xs:element name="TotalAmount" type="xs:unsignedLong"/>
      <xs:element ref="ds:Signature"/>
 </xs:sequence>
  </xs:complexType>
</xs:element>
</xs:schema>

c2.xsd(Edited)

 <?xml version="1.0" encoding="ISO-8859-1" ?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" targetNamespace="http://www.w3.org/2000/09/xmldsig#">
<xs:element name="Signature">
     <xs:complexType>
      <xs:sequence>
        <xs:element name="SignedInfo">
         <xs:complexType>
          <xs:sequence>
             <xs:element name="CanonicalizationMethod">
              <xs:complexType>
               <xs:attribute name="Algorithm" type="xs:string" use="required"/>
              </xs:complexType>
             </xs:element>
             <xs:element name="SignatureMethod">
               <xs:complexType>
                 <xs:attribute name="Algorithm" type="xs:string" use="required"/>
               </xs:complexType>
             </xs:element>                
            <xs:element name="Reference">
             <xs:complexType>
               <xs:attribute name="URI" type="xs:string"/>
               <xs:all>
               <xs:element name="Transforms">
                 <xs:complexType>
                   <xs:sequence>
                     <xs:element name="Transform" type="xs:string">
                       <xs:complexType>
                         <xs:attribute name="Algorithm" type="xs:string" use="required"/>
                       </xs:complexType>
                      </xs:element>
                   </xs:sequence>
                 </xs:complexType>
               </xs:element>
               <xs:element name="DigestMethod">
                 <xs:complexType>
                   <xs:attribute name="Algorithm" type="xs:string" use="required"/>
                 </xs:complexType>
               </xs:element>
               <xs:element name="DigestValue" type="xs:hexBinary"/>
               </xs:all>
             </xs:complexType>
            </xs:element>
            </xs:sequence>
         </xs:complexType> 
        </xs:element> 
       <xs:element name="SignatureValue" type="xs:string"/>
      </xs:sequence>
     </xs:complexType>
</xs:element>
</xs:schema>

Когда я проверяю свой XML-файл, я получаю следующее исключение

org.xml.sax.SAXParseException; systemId: file:/C://xml//c2.xsd; lineNumber: 22;
columnNumber: 37; s4s-elt-invalid-content.1: The content of '#AnonType_Reference
SignedInfoSignature' is invalid.  Element 'element' is invalid, misplaced, or oc
curs too often.

I cannot figure out where am I going wrong? Can anyone tell where exactly is the mistake in my code?
Error after Edit 1

org.xml.sax.SAXParseException; systemId: file:/C://xml//c2.xsd; lineNumber: 22;
columnNumber: 15; s4s-elt-invalid-content.1: The content of '#AnonType_Reference
SignedInfoSignature' is invalid.  Element 'all' is invalid, misplaced, or occurs
 too often.

Ответы на вопрос(3)

Ваш ответ на вопрос