Sample code for 30+ languages & platforms
Pascal (Lazarus/Delphi)

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 Pascal (Lazarus/Delphi) Downloads

Pascal (Lazarus/Delphi)
program ChilkatDemo;

// Demonstrates using the Chilkat Pascal wrapper via the C bridge DLL.
// Builds as a console application under Lazarus (FPC) or Delphi.

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}
{$APPTYPE CONSOLE}

uses
  {$IFDEF UNIX}
  cthreads,
  {$ENDIF}
  SysUtils,
  CkDllLoader,
  Chilkat.StringBuilder,
  Chilkat.XmlDSigGen,
  Chilkat.Xml,
  Chilkat.XmlDSig,
  Chilkat.Cert;

// ---------------------------------------------------------------------------

procedure RunDemo;
var
  success: Boolean;
  xmlToSign: TXml;
  gen: TXmlDSigGen;
  object1: TXml;
  cert: TCert;
  sbXml: TStringBuilder;
  verifier: TXmlDSig;
  numSigs: Integer;
  verifyIdx: Integer;
  verified: Boolean;

begin
  success := False;

  //  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 := True;

  //  Create the XML to be signed...

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

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

  gen := TXmlDSigGen.Create;

  gen.SigLocation := 'Dfe';
  gen.SigLocationMod := 0;
  gen.SigId := 'xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac';
  gen.SigNamespacePrefix := 'ds';
  gen.SigNamespaceUri := 'http://www.w3.org/2000/09/xmldsig#';
  gen.SigValueId := 'xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-sigvalue';
  gen.SignedInfoCanonAlg := 'C14N';
  gen.SignedInfoDigestMethod := 'sha256';

  //  Set the KeyInfoId before adding references..
  gen.KeyInfoId := 'xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-keyinfo';

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

  gen.AddObject('',object1.GetXml(),'','');

  //  -------- Reference 1 --------
  gen.AddSameDocRef('CV2210818123456789000010100000000546735014601','sha256','','','');
  gen.SetRefIdAttr('CV2210818123456789000010100000000546735014601','xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-ref0');

  //  -------- Reference 2 --------
  gen.AddSameDocRef('xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-keyinfo','sha256','C14N','','');

  //  -------- Reference 3 --------
  gen.AddObjectRef('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 := TCert.Create;
  success := cert.LoadPfxFile('qa_data/pfx/cert_test123.pfx','test123');
  if (success <> True) then
    begin
      WriteLn(cert.LastErrorText);
      Exit;
    end;
  gen.SetX509Cert(cert,True);

  gen.KeyInfoType := 'X509Data';
  gen.X509Type := 'IssuerSerial,SubjectName,Certificate';

  //  Load XML to be signed...
  sbXml := TStringBuilder.Create;
  xmlToSign.GetXmlSb(sbXml);

  //  Note: The last keyword (Base64Cr13Entity) requires Chilkat v9.5.0.89 or later.
  gen.Behaviors := 'IndentedSignature,Base64Cr13Entity,ForceAddEnvelopedSignatureTransform,Base64Cr13Entity';

  //  Sign the XML...
  success := gen.CreateXmlDSigSb(sbXml);
  if (success <> True) then
    begin
      WriteLn(gen.LastErrorText);
      Exit;
    end;
  //  -----------------------------------------------

  //  Save the signed XML to a file.
  success := sbXml.WriteFile('qa_output/signedXml.xml','utf-8',False);

  WriteLn(sbXml.GetAsString());

  //  ----------------------------------------
  //  Verify the signatures we just produced...
  verifier := TXmlDSig.Create;
  success := verifier.LoadSignatureSb(sbXml);
  if (success <> True) then
    begin
      WriteLn(verifier.LastErrorText);
      Exit;
    end;

  numSigs := verifier.NumSignatures;
  verifyIdx := 0;
  while verifyIdx < numSigs do
    begin
      verifier.Selector := verifyIdx;
      verified := verifier.VerifySignature(True);
      if (verified <> True) then
        begin
          WriteLn(verifier.LastErrorText);
          Exit;
        end;
      verifyIdx := verifyIdx + 1;
    end;

  WriteLn('All signatures were successfully verified.');


  xmlToSign.Free;
  gen.Free;
  object1.Free;
  cert.Free;
  sbXml.Free;
  verifier.Free;

end;

// ---------------------------------------------------------------------------

begin

  try
    RunDemo;
  except
    on E: Exception do
      WriteLn('Unhandled exception: ', E.ClassName, ': ', E.Message);
  end;

  WriteLn;
  {$IFDEF MSWINDOWS}
  WriteLn('Press Enter to exit...');
  ReadLn;
  {$ENDIF}
end.