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<?xml version="1.0" encoding="utf-8"?>
<!-- ***************************************************-->
<!-- *** Schema específico para assinaturas XML ***-->
<!-- *** a partir de certificados do padrão (X509) ***-->
<!-- *** ICP-Brasil - Projeto Nota Fiscal Eletrônica ***-->
<!-- ***************************************************-->
<!-- Schema for XML Signatures-->
<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#" elementFormDefault="qualified" attributeFormDefault="unqualified" version="0.1">
<element name="Signature" type="ds:SignatureType"/>
<complexType name="SignatureType">
<sequence>
<element name="SignedInfo" type="ds:SignedInfoType"/>
<element name="SignatureValue" type="ds:SignatureValueType"/>
<element name="KeyInfo" type="ds:KeyInfoType"/>
</sequence>
<attribute name="Id" type="ID" use="optional"/>
</complexType>
<complexType name="SignatureValueType">
<simpleContent>
<extension base="base64Binary">
<attribute name="Id" type="ID" use="optional"/>
</extension>
</simpleContent>
</complexType>
<complexType name="SignedInfoType">
<sequence>
<element name="CanonicalizationMethod">
<complexType>
<attribute name="Algorithm" type="anyURI" use="required" fixed="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/>
</complexType>
</element>
<element name="SignatureMethod">
<complexType>
<attribute name="Algorithm" type="anyURI" use="required" fixed="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/>
</complexType>
</element>
<element name="Reference" type="ds:ReferenceType"/>
</sequence>
<attribute name="Id" type="ID" use="optional"/>
</complexType>
<complexType name="ReferenceType">
<sequence>
<element name="Transforms" type="ds:TransformsType">
<!-- Garante a unicidade do atributo -->
<unique name="unique_Transf_Alg">
<selector xpath="./*"/>
<field xpath="@Algorithm"/>
</unique>
</element>
<element name="DigestMethod">
<complexType>
<attribute name="Algorithm" type="anyURI" use="required" fixed="http://www.w3.org/2000/09/xmldsig#sha1"/>
</complexType>
</element>
<element name="DigestValue" type="ds:DigestValueType"/>
</sequence>
<attribute name="Id" type="ID" use="optional"/>
<attribute name="URI" use="required">
<simpleType>
<restriction base="anyURI">
<minLength value="2"/>
</restriction>
</simpleType>
</attribute>
<attribute name="Type" type="anyURI" use="optional"/>
</complexType>
<complexType name="TransformsType">
<sequence>
<element name="Transform" type="ds:TransformType" minOccurs="2" maxOccurs="2"/>
</sequence>
</complexType>
<complexType name="TransformType">
<sequence minOccurs="0" maxOccurs="unbounded">
<element name="XPath" type="string"/>
</sequence>
<attribute name="Algorithm" type="ds:TTransformURI" use="required"/>
</complexType>
<complexType name="KeyInfoType">
<sequence>
<element name="X509Data" type="ds:X509DataType"/>
</sequence>
<attribute name="Id" type="ID" use="optional"/>
</complexType>
<complexType name="X509DataType">
<sequence>
<element name="X509Certificate" type="base64Binary"/>
</sequence>
</complexType>
<simpleType name="DigestValueType">
<restriction base="base64Binary"/>
</simpleType>
<simpleType name="TTransformURI">
<restriction base="anyURI">
<enumeration value="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/>
<enumeration value="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/>
</restriction>
</simpleType>
</schema>