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PureBasic

Cape Verde Fatura Eletrónica XML Digital Signature

See more XML Digital Signatures Examples

Demonstrates how to sign XML to create a signed invoice compatible with the Cape Verde Fatura Eletrónica requirements.

Note: This example requires Chilkat v9.5.0.89 or greater for a small feature to provide the ability produce mult-line base64 signature ending with 

Chilkat PureBasic Downloads

PureBasic
IncludeFile "CkCert.pb"
IncludeFile "CkXml.pb"
IncludeFile "CkXmlDSigGen.pb"
IncludeFile "CkXmlDSig.pb"
IncludeFile "CkStringBuilder.pb"

Procedure ChilkatExample()

    success.i = 0

    ; This example assumes the Chilkat API to have been previously unlocked.
    ; See Global Unlock Sample for sample code.

    ; First create the following XML to be signed.  This can be created programmatically as shown in the code below, or 
    ; you can simply load the XML to be signed from a file..

    ; <?xml version="1.0" encoding="utf-8"?>
    ; <Dfe xmlns="urn:cv:efatura:xsd:v1.0" DocumentTypeCode="1" Id="CV2210818123456789000010100000000546735014601" Version="1.0">
    ;     <Invoice>
    ;         <LedCode>1</LedCode>
    ;         <Serie>SL</Serie>
    ;         <DocumentNumber>5</DocumentNumber>
    ;         <IssueDate>2021-08-30</IssueDate>
    ;         <IssueTime>00:01:00</IssueTime>
    ;         <TaxPointDate>2021-08-18</TaxPointDate>
    ;         <EmitterParty>
    ;             <TaxId CountryCode="CV">123456789</TaxId>
    ;             <Name>Maria</Name>
    ;             <Address CountryCode="CV">
    ;                 <State>Estado do Emissor</State>
    ;                 <City>Cidade do Emissor</City>
    ;                 <Region>Regi�o do Emissor</Region>
    ;                 <Street>Rua do Emissor</Street>
    ;                 <StreetDetail>Detalhe da rua do Emissor</StreetDetail>
    ;                 <BuildingName>Pr�dio do Emissor</BuildingName>
    ;                 <BuildingNumber>1</BuildingNumber>
    ;                 <BuildingFloor>2</BuildingFloor>
    ;                 <PostalCode>7600</PostalCode>
    ;                 <AddressDetail>Detalhe de endere�o do Emissor</AddressDetail>
    ;                 <AddressCode>CV774999999999999319</AddressCode>
    ;             </Address>
    ;             <Contacts>
    ;                 <Telephone>1234567</Telephone>
    ;                 <Mobilephone>1234568</Mobilephone>
    ;                 <Telefax>1234569</Telefax>
    ;                 <Email>somebody@example.com</Email>
    ;                 <Website>emissor.efatura.cv</Website>
    ;             </Contacts>
    ;         </EmitterParty>
    ;         <ReceiverParty>
    ;             <TaxId CountryCode="CV">123456789</TaxId>
    ;             <Name>Nome do Recetor</Name>
    ;             <Address CountryCode="CV">
    ;                 <State>Estado do Recetor</State>
    ;                 <City>Cidade do Recetor</City>
    ;                 <Region>Regi�o do Recetor</Region>
    ;                 <Street>Rua do Recetor</Street>
    ;                 <StreetDetail>Detalhe da rua do Recetor</StreetDetail>
    ;                 <BuildingName>Pr�dio do Recetor</BuildingName>
    ;                 <BuildingNumber>2</BuildingNumber>
    ;                 <BuildingFloor>3</BuildingFloor>
    ;                 <PostalCode>7601</PostalCode>
    ;                 <AddressDetail>Detalhe de endere�o do Recetor</AddressDetail>
    ;                 <AddressCode>CV774999999999999319</AddressCode>
    ;             </Address>
    ;             <Contacts>
    ;                 <Telephone>2234567</Telephone>
    ;                 <Mobilephone>2234568</Mobilephone>
    ;                 <Telefax>2234569</Telefax>
    ;                 <Email>rector@efatura.cv</Email>
    ;                 <Website>rector.efatura.cv</Website>
    ;             </Contacts>
    ;         </ReceiverParty>
    ;         <Lines>
    ;             <Line LineTypeCode="N">
    ;                 <Id>01</Id>
    ;                 <OrderLineReference>1</OrderLineReference>
    ;                 <Quantity UnitCode="EA">3.15</Quantity>
    ;                 <Price>123456</Price>
    ;                 <PriceExtension>388886</PriceExtension>
    ;                 <Discount>15</Discount>
    ;                 <NetTotal>252776</NetTotal>
    ;                 <Tax TaxTypeCode="IVA">
    ;                     <TaxPercentage>15</TaxPercentage>
    ;                 </Tax>
    ;                 <Item>
    ;                     <Description>Telem�vel</Description>
    ;                     <Name>Telem�vel</Name>
    ;                     <BrandName>Apple</BrandName>
    ;                     <ModelName>iPhone X</ModelName>
    ;                     <EmitterIdentification>TLMV</EmitterIdentification>
    ;                     <StandardIdentification>
    ;                         <GTIN>12345</GTIN>
    ;                     </StandardIdentification>
    ;                     <HazardousRiskIndicator>false</HazardousRiskIndicator>
    ;                 </Item>
    ;             </Line>
    ;         </Lines>
    ;         <Totals>
    ;             <PriceExtensionTotalAmount>388886</PriceExtensionTotalAmount>
    ;             <ChargeTotalAmount>0</ChargeTotalAmount>
    ;             <DiscountTotalAmount>136110</DiscountTotalAmount>
    ;             <NetTotalAmount>252776</NetTotalAmount>
    ;             <Discount ValueType="P">20</Discount>
    ;             <TaxTotalAmount>37916</TaxTotalAmount>
    ;             <PayableAmount>290692</PayableAmount>
    ;         </Totals>
    ;         <References>
    ;             <Reference>
    ;                 <FiscalDocument IsOldDocument="false">CV1200520123456789000112345678901112345678901</FiscalDocument>
    ;                 <PaymentAmount>12345</PaymentAmount>
    ;                 <Tax TaxTypeCode="IR">
    ;                     <TaxPercentage>10</TaxPercentage>
    ;                 </Tax>
    ;             </Reference>
    ;             <Reference>
    ;                 <FiscalDocument IsOldDocument="false">CV1200520123456789000112345678901112345678903</FiscalDocument>
    ;                 <PaymentAmount>98765</PaymentAmount>
    ;                 <Tax TaxTypeCode="IVA">
    ;                     <TaxPercentage>15</TaxPercentage>
    ;                 </Tax>
    ;             </Reference>
    ;         </References>
    ;         <Payments>
    ;             <PaymentDueDate>2021-12-31</PaymentDueDate>
    ;             <PaymentTerms>
    ;                 <Note>Juros de 12% a partir da data de vencimento</Note>
    ;             </PaymentTerms>
    ;             <PayeeFinancialAccount>
    ;                 <NIB>123456789012345678901</NIB>
    ;                 <Name>Nome da Conta 1</Name>
    ;             </PayeeFinancialAccount>
    ;             <PayeeFinancialAccount>
    ;                 <NIB>123456789012345678902</NIB>
    ;                 <Name>Nome da Conta 2</Name>
    ;             </PayeeFinancialAccount>
    ;         </Payments>
    ;         <Note>Texto livre</Note>
    ;     </Invoice>
    ;     <Transmission>
    ;         <IssueMode>2</IssueMode>
    ;         <TransmitterTaxId CountryCode="CV">123456789</TransmitterTaxId>
    ;         <Software>
    ;             <Code>EMIPUB</Code>
    ;             <Name>DNRE Emissor P�blico</Name>
    ;             <Version>Build #53 12-07-2021 14:00:47 CVT - master</Version>
    ;         </Software>
    ;         <Contingency>
    ;             <LedCode>1</LedCode>
    ;             <IssueDate>2020-01-01</IssueDate>
    ;             <IssueTime>01:02:03</IssueTime>
    ;             <ReasonTypeCode>1</ReasonTypeCode>
    ;         </Contingency>
    ;     </Transmission>
    ;     <RepositoryCode>2</RepositoryCode>
    ; </Dfe>

    success = 1

    ; Create the XML to be signed...

    ; Use this online tool to generate code from sample XML: 
    ; Generate Code to Create XML

    xmlToSign.i = CkXml::ckCreate()
    If xmlToSign.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkXml::setCkTag(xmlToSign, "Dfe")
    CkXml::ckAddAttribute(xmlToSign,"xmlns","urn:cv:efatura:xsd:v1.0")
    CkXml::ckAddAttribute(xmlToSign,"DocumentTypeCode","1")
    CkXml::ckAddAttribute(xmlToSign,"Id","CV2210818123456789000010100000000546735014601")
    CkXml::ckAddAttribute(xmlToSign,"Version","1.0")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|LedCode","1")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Serie","SL")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|DocumentNumber","5")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|IssueDate","2021-08-30")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|IssueTime","00:01:00")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|TaxPointDate","2021-08-18")
    CkXml::ckUpdateAttrAt(xmlToSign,"Invoice|EmitterParty|TaxId",1,"CountryCode","CV")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|EmitterParty|TaxId","123456789")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|EmitterParty|Name","Maria")
    CkXml::ckUpdateAttrAt(xmlToSign,"Invoice|EmitterParty|Address",1,"CountryCode","CV")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|EmitterParty|Address|State","Estado do Emissor")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|EmitterParty|Address|City","Cidade do Emissor")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|EmitterParty|Address|Region","Regi�o do Emissor")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|EmitterParty|Address|Street","Rua do Emissor")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|EmitterParty|Address|StreetDetail","Detalhe da rua do Emissor")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|EmitterParty|Address|BuildingName","Pr�dio do Emissor")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|EmitterParty|Address|BuildingNumber","1")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|EmitterParty|Address|BuildingFloor","2")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|EmitterParty|Address|PostalCode","7600")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|EmitterParty|Address|AddressDetail","Detalhe de endere�o do Emissor")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|EmitterParty|Address|AddressCode","CV774999999999999319")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|EmitterParty|Contacts|Telephone","1234567")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|EmitterParty|Contacts|Mobilephone","1234568")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|EmitterParty|Contacts|Telefax","1234569")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|EmitterParty|Contacts|Email","somebody@example.com")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|EmitterParty|Contacts|Website","emissor.efatura.cv")
    CkXml::ckUpdateAttrAt(xmlToSign,"Invoice|ReceiverParty|TaxId",1,"CountryCode","CV")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|ReceiverParty|TaxId","123456789")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|ReceiverParty|Name","Nome do Recetor")
    CkXml::ckUpdateAttrAt(xmlToSign,"Invoice|ReceiverParty|Address",1,"CountryCode","CV")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|ReceiverParty|Address|State","Estado do Recetor")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|ReceiverParty|Address|City","Cidade do Recetor")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|ReceiverParty|Address|Region","Regi�o do Recetor")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|ReceiverParty|Address|Street","Rua do Recetor")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|ReceiverParty|Address|StreetDetail","Detalhe da rua do Recetor")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|ReceiverParty|Address|BuildingName","Pr�dio do Recetor")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|ReceiverParty|Address|BuildingNumber","2")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|ReceiverParty|Address|BuildingFloor","3")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|ReceiverParty|Address|PostalCode","7601")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|ReceiverParty|Address|AddressDetail","Detalhe de endere�o do Recetor")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|ReceiverParty|Address|AddressCode","CV774999999999999319")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|ReceiverParty|Contacts|Telephone","2234567")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|ReceiverParty|Contacts|Mobilephone","2234568")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|ReceiverParty|Contacts|Telefax","2234569")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|ReceiverParty|Contacts|Email","rector@efatura.cv")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|ReceiverParty|Contacts|Website","rector.efatura.cv")
    CkXml::ckUpdateAttrAt(xmlToSign,"Invoice|Lines|Line",1,"LineTypeCode","N")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Lines|Line|Id","01")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Lines|Line|OrderLineReference","1")
    CkXml::ckUpdateAttrAt(xmlToSign,"Invoice|Lines|Line|Quantity",1,"UnitCode","EA")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Lines|Line|Quantity","3.15")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Lines|Line|Price","123456")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Lines|Line|PriceExtension","388886")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Lines|Line|Discount","15")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Lines|Line|NetTotal","252776")
    CkXml::ckUpdateAttrAt(xmlToSign,"Invoice|Lines|Line|Tax",1,"TaxTypeCode","IVA")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Lines|Line|Tax|TaxPercentage","15")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Lines|Line|Item|Description","Telem�vel")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Lines|Line|Item|Name","Telem�vel")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Lines|Line|Item|BrandName","Apple")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Lines|Line|Item|ModelName","iPhone X")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Lines|Line|Item|EmitterIdentification","TLMV")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Lines|Line|Item|StandardIdentification|GTIN","12345")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Lines|Line|Item|HazardousRiskIndicator","false")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Totals|PriceExtensionTotalAmount","388886")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Totals|ChargeTotalAmount","0")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Totals|DiscountTotalAmount","136110")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Totals|NetTotalAmount","252776")
    CkXml::ckUpdateAttrAt(xmlToSign,"Invoice|Totals|Discount",1,"ValueType","P")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Totals|Discount","20")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Totals|TaxTotalAmount","37916")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Totals|PayableAmount","290692")
    CkXml::ckUpdateAttrAt(xmlToSign,"Invoice|References|Reference|FiscalDocument",1,"IsOldDocument","false")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|References|Reference|FiscalDocument","CV1200520123456789000112345678901112345678901")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|References|Reference|PaymentAmount","12345")
    CkXml::ckUpdateAttrAt(xmlToSign,"Invoice|References|Reference|Tax",1,"TaxTypeCode","IR")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|References|Reference|Tax|TaxPercentage","10")
    CkXml::ckUpdateAttrAt(xmlToSign,"Invoice|References|Reference[1]|FiscalDocument",1,"IsOldDocument","false")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|References|Reference[1]|FiscalDocument","CV1200520123456789000112345678901112345678903")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|References|Reference[1]|PaymentAmount","98765")
    CkXml::ckUpdateAttrAt(xmlToSign,"Invoice|References|Reference[1]|Tax",1,"TaxTypeCode","IVA")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|References|Reference[1]|Tax|TaxPercentage","15")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Payments|PaymentDueDate","2021-12-31")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Payments|PaymentTerms|Note","Juros de 12% a partir da data de vencimento")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Payments|PayeeFinancialAccount|NIB","123456789012345678901")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Payments|PayeeFinancialAccount|Name","Nome da Conta 1")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Payments|PayeeFinancialAccount[1]|NIB","123456789012345678902")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Payments|PayeeFinancialAccount[1]|Name","Nome da Conta 2")
    CkXml::ckUpdateChildContent(xmlToSign,"Invoice|Note","Texto livre")
    CkXml::ckUpdateChildContent(xmlToSign,"Transmission|IssueMode","2")
    CkXml::ckUpdateAttrAt(xmlToSign,"Transmission|TransmitterTaxId",1,"CountryCode","CV")
    CkXml::ckUpdateChildContent(xmlToSign,"Transmission|TransmitterTaxId","123456789")
    CkXml::ckUpdateChildContent(xmlToSign,"Transmission|Software|Code","EMIPUB")
    CkXml::ckUpdateChildContent(xmlToSign,"Transmission|Software|Name","DNRE Emissor P�blico")
    CkXml::ckUpdateChildContent(xmlToSign,"Transmission|Software|Version","Build #53 12-07-2021 14:00:47 CVT - master")
    CkXml::ckUpdateChildContent(xmlToSign,"Transmission|Contingency|LedCode","1")
    CkXml::ckUpdateChildContent(xmlToSign,"Transmission|Contingency|IssueDate","2020-01-01")
    CkXml::ckUpdateChildContent(xmlToSign,"Transmission|Contingency|IssueTime","01:02:03")
    CkXml::ckUpdateChildContent(xmlToSign,"Transmission|Contingency|ReasonTypeCode","1")
    CkXml::ckUpdateChildContent(xmlToSign,"RepositoryCode","2")

    gen.i = CkXmlDSigGen::ckCreate()
    If gen.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkXmlDSigGen::setCkSigLocation(gen, "Dfe")
    CkXmlDSigGen::setCkSigLocationMod(gen, 0)
    CkXmlDSigGen::setCkSigId(gen, "xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac")
    CkXmlDSigGen::setCkSigNamespacePrefix(gen, "ds")
    CkXmlDSigGen::setCkSigNamespaceUri(gen, "http://www.w3.org/2000/09/xmldsig#")
    CkXmlDSigGen::setCkSigValueId(gen, "xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-sigvalue")
    CkXmlDSigGen::setCkSignedInfoCanonAlg(gen, "C14N")
    CkXmlDSigGen::setCkSignedInfoDigestMethod(gen, "sha256")

    ; Set the KeyInfoId before adding references..
    CkXmlDSigGen::setCkKeyInfoId(gen, "xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-keyinfo")

    ; Create an Object to be added to the Signature.
    object1.i = CkXml::ckCreate()
    If object1.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkXml::setCkTag(object1, "xades:QualifyingProperties")
    CkXml::ckAddAttribute(object1,"xmlns:xades","http://uri.etsi.org/01903/v1.3.2#")
    CkXml::ckAddAttribute(object1,"xmlns:xades141","http://uri.etsi.org/01903/v1.4.1#")
    CkXml::ckAddAttribute(object1,"Target","#xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac")
    CkXml::ckUpdateAttrAt(object1,"xades:SignedProperties",1,"Id","xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-signedprops")
    CkXml::ckUpdateChildContent(object1,"xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningTime","TO BE GENERATED BY CHILKAT")
    CkXml::ckUpdateAttrAt(object1,"xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestMethod",1,"Algorithm","http://www.w3.org/2001/04/xmlenc#sha256")
    CkXml::ckUpdateChildContent(object1,"xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestValue","TO BE GENERATED BY CHILKAT")
    CkXml::ckUpdateChildContent(object1,"xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:IssuerSerialV2","TO BE GENERATED BY CHILKAT")
    CkXml::ckUpdateAttrAt(object1,"xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat",1,"ObjectReference","#xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-ref0")
    CkXml::ckUpdateChildContent(object1,"xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Description","DFE Signature")
    CkXml::ckUpdateChildContent(object1,"xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Identifier","efatura-uri")
    CkXml::ckUpdateChildContent(object1,"xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:DocumentationReferences|xades:DocumentationReference","https://efatura.cv")
    CkXml::ckUpdateChildContent(object1,"xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:MimeType","text/xml")
    CkXml::ckUpdateChildContent(object1,"xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Encoding","UTF-8")
    CkXml::ckUpdateChildContent(object1,"xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication|xades:CommitmentTypeId|xades:Identifier","http://uri.etsi.org/01903/v1.2.2#ProofOfApproval")
    CkXml::ckUpdateChildContent(object1,"xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication|xades:CommitmentTypeId|xades:Description","Indicates that the signer has approved the content of the signed data object")
    CkXml::ckUpdateChildContent(object1,"xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication|xades:AllSignedDataObjects","")
    CkXml::ckUpdateChildContent(object1,"xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication[1]|xades:CommitmentTypeId|xades:Identifier","http://uri.etsi.org/01903/v1.2.2#ProofOfOrigin")
    CkXml::ckUpdateChildContent(object1,"xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication[1]|xades:CommitmentTypeId|xades:Description","Indicates that the signer recognizes to have created, approved and sent the signed data object")
    CkXml::ckUpdateChildContent(object1,"xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication[1]|xades:ObjectReference","#xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-ref0")
    CkXml::ckUpdateChildContent(object1,"xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication[1]|xades:CommitmentTypeQualifiers|xades:CommitmentTypeQualifier","CV-FE-123456789")

    CkXmlDSigGen::ckAddObject(gen,"",CkXml::ckGetXml(object1),"","")

    ; -------- Reference 1 --------
    CkXmlDSigGen::ckAddSameDocRef(gen,"CV2210818123456789000010100000000546735014601","sha256","","","")
    CkXmlDSigGen::ckSetRefIdAttr(gen,"CV2210818123456789000010100000000546735014601","xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-ref0")

    ; -------- Reference 2 --------
    CkXmlDSigGen::ckAddSameDocRef(gen,"xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-keyinfo","sha256","C14N","","")

    ; -------- Reference 3 --------
    CkXmlDSigGen::ckAddObjectRef(gen,"xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-signedprops","sha256","C14N","","http://uri.etsi.org/01903#SignedProperties")

    ; Provide a certificate + private key. (PFX password is test123)
    cert.i = CkCert::ckCreate()
    If cert.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success = CkCert::ckLoadPfxFile(cert,"qa_data/pfx/cert_test123.pfx","test123")
    If success <> 1
        Debug CkCert::ckLastErrorText(cert)
        CkXml::ckDispose(xmlToSign)
        CkXmlDSigGen::ckDispose(gen)
        CkXml::ckDispose(object1)
        CkCert::ckDispose(cert)
        ProcedureReturn
    EndIf

    CkXmlDSigGen::ckSetX509Cert(gen,cert,1)

    CkXmlDSigGen::setCkKeyInfoType(gen, "X509Data")
    CkXmlDSigGen::setCkX509Type(gen, "IssuerSerial,SubjectName,Certificate")

    ; Load XML to be signed...
    sbXml.i = CkStringBuilder::ckCreate()
    If sbXml.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkXml::ckGetXmlSb(xmlToSign,sbXml)

    ; Note: The last keyword (Base64Cr13Entity) requires Chilkat v9.5.0.89 or later.
    CkXmlDSigGen::setCkBehaviors(gen, "IndentedSignature,Base64Cr13Entity,ForceAddEnvelopedSignatureTransform,Base64Cr13Entity")

    ; Sign the XML...
    success = CkXmlDSigGen::ckCreateXmlDSigSb(gen,sbXml)
    If success <> 1
        Debug CkXmlDSigGen::ckLastErrorText(gen)
        CkXml::ckDispose(xmlToSign)
        CkXmlDSigGen::ckDispose(gen)
        CkXml::ckDispose(object1)
        CkCert::ckDispose(cert)
        CkStringBuilder::ckDispose(sbXml)
        ProcedureReturn
    EndIf

    ; -----------------------------------------------

    ; Save the signed XML to a file.
    success = CkStringBuilder::ckWriteFile(sbXml,"qa_output/signedXml.xml","utf-8",0)

    Debug CkStringBuilder::ckGetAsString(sbXml)

    ; ----------------------------------------
    ; Verify the signatures we just produced...
    verifier.i = CkXmlDSig::ckCreate()
    If verifier.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success = CkXmlDSig::ckLoadSignatureSb(verifier,sbXml)
    If success <> 1
        Debug CkXmlDSig::ckLastErrorText(verifier)
        CkXml::ckDispose(xmlToSign)
        CkXmlDSigGen::ckDispose(gen)
        CkXml::ckDispose(object1)
        CkCert::ckDispose(cert)
        CkStringBuilder::ckDispose(sbXml)
        CkXmlDSig::ckDispose(verifier)
        ProcedureReturn
    EndIf

    numSigs.i = CkXmlDSig::ckNumSignatures(verifier)
    verifyIdx.i = 0
    While verifyIdx < numSigs
        CkXmlDSig::setCkSelector(verifier, verifyIdx)
        verified.i = CkXmlDSig::ckVerifySignature(verifier,1)
        If verified <> 1
            Debug CkXmlDSig::ckLastErrorText(verifier)
            CkXml::ckDispose(xmlToSign)
            CkXmlDSigGen::ckDispose(gen)
            CkXml::ckDispose(object1)
            CkCert::ckDispose(cert)
            CkStringBuilder::ckDispose(sbXml)
            CkXmlDSig::ckDispose(verifier)
            ProcedureReturn
        EndIf

        verifyIdx = verifyIdx + 1
    Wend
    Debug "All signatures were successfully verified."


    CkXml::ckDispose(xmlToSign)
    CkXmlDSigGen::ckDispose(gen)
    CkXml::ckDispose(object1)
    CkCert::ckDispose(cert)
    CkStringBuilder::ckDispose(sbXml)
    CkXmlDSig::ckDispose(verifier)


    ProcedureReturn
EndProcedure