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(Delphi ActiveX) 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 for Delphi Downloads

Chilkat ActiveX DLL for Delphi

Chilkat non-ActiveX DLL for Delphi

* The examples here use the ActiveX DLL.

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Chilkat_TLB;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Integer;
xmlToSign: TChilkatXml;
gen: TChilkatXmlDSigGen;
object1: TChilkatXml;
cert: TChilkatCert;
sbXml: TChilkatStringBuilder;
verifier: TChilkatXmlDSig;
numSigs: Integer;
verifyIdx: Integer;
verified: Integer;

begin
// 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 := TChilkatXml.Create(Self);
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',1,'CountryCode','CV');
xmlToSign.UpdateChildContent('Invoice|EmitterParty|TaxId','123456789');
xmlToSign.UpdateChildContent('Invoice|EmitterParty|Name','Maria');
xmlToSign.UpdateAttrAt('Invoice|EmitterParty|Address',1,'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',1,'CountryCode','CV');
xmlToSign.UpdateChildContent('Invoice|ReceiverParty|TaxId','123456789');
xmlToSign.UpdateChildContent('Invoice|ReceiverParty|Name','Nome do Recetor');
xmlToSign.UpdateAttrAt('Invoice|ReceiverParty|Address',1,'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',1,'LineTypeCode','N');
xmlToSign.UpdateChildContent('Invoice|Lines|Line|Id','01');
xmlToSign.UpdateChildContent('Invoice|Lines|Line|OrderLineReference','1');
xmlToSign.UpdateAttrAt('Invoice|Lines|Line|Quantity',1,'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',1,'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',1,'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',1,'IsOldDocument','false');
xmlToSign.UpdateChildContent('Invoice|References|Reference|FiscalDocument','CV1200520123456789000112345678901112345678901');
xmlToSign.UpdateChildContent('Invoice|References|Reference|PaymentAmount','12345');
xmlToSign.UpdateAttrAt('Invoice|References|Reference|Tax',1,'TaxTypeCode','IR');
xmlToSign.UpdateChildContent('Invoice|References|Reference|Tax|TaxPercentage','10');
xmlToSign.UpdateAttrAt('Invoice|References|Reference[1]|FiscalDocument',1,'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',1,'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',1,'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 := TChilkatXmlDSigGen.Create(Self);

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 := TChilkatXml.Create(Self);
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',1,'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',1,'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',1,'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 := TChilkatCert.Create(Self);
success := cert.LoadPfxFile('qa_data/pfx/cert_test123.pfx','test123');
if (success <> 1) then
  begin
    Memo1.Lines.Add(cert.LastErrorText);
    Exit;
  end;
gen.SetX509Cert(cert.ControlInterface,1);

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

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

// 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.ControlInterface);
if (success <> 1) then
  begin
    Memo1.Lines.Add(gen.LastErrorText);
    Exit;
  end;
// -----------------------------------------------

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

Memo1.Lines.Add(sbXml.GetAsString());

// ----------------------------------------
// Verify the signatures we just produced...
verifier := TChilkatXmlDSig.Create(Self);
success := verifier.LoadSignatureSb(sbXml.ControlInterface);
if (success <> 1) then
  begin
    Memo1.Lines.Add(verifier.LastErrorText);
    Exit;
  end;

numSigs := verifier.NumSignatures;
verifyIdx := 0;
while verifyIdx < numSigs do
  begin
    verifier.Selector := verifyIdx;
    verified := verifier.VerifySignature(1);
    if (verified <> 1) then
      begin
        Memo1.Lines.Add(verifier.LastErrorText);
        Exit;
      end;
    verifyIdx := verifyIdx + 1;
  end;

Memo1.Lines.Add('All signatures were successfully verified.');
end;
 

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