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Delphi DLL

TicketBAI Sign XML Example 2

See more TicketBAI Examples

Second example to demonstrate how to sign XML for TicketBAI.

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Delphi DLL 
uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, StringBuilder, XmlDSigGen, Xml, XmlDSig, Cert;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
xmlToSign: HCkXml;
gen: HCkXmlDSigGen;
object1: HCkXml;
cert: HCkCert;
sbXml: HCkStringBuilder;
verifier: HCkXmlDSig;
numSigs: Integer;
verifyIdx: Integer;
verified: Boolean;

begin
success := False;

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

success := True;
// Create the XML to be signed...
xmlToSign := CkXml_Create();
CkXml_putTag(xmlToSign,'T:TicketBai');
CkXml_AddAttribute(xmlToSign,'xmlns:T','urn:ticketbai:emision');
CkXml_UpdateChildContent(xmlToSign,'Cabecera|IDVersionTBAI','1.2');
CkXml_UpdateChildContent(xmlToSign,'Sujetos|Emisor|NIF','79732487C');
CkXml_UpdateChildContent(xmlToSign,'Sujetos|Emisor|ApellidosNombreRazonSocial','ARRIOLA LEJARDI ANE');
CkXml_UpdateChildContent(xmlToSign,'Sujetos|Destinatarios|IDDestinatario|NIF','A48012363');
CkXml_UpdateChildContent(xmlToSign,'Sujetos|Destinatarios|IDDestinatario|ApellidosNombreRazonSocial','ACADEMIA ESKOLA');
CkXml_UpdateChildContent(xmlToSign,'Factura|CabeceraFactura|SerieFactura','A2022');
CkXml_UpdateChildContent(xmlToSign,'Factura|CabeceraFactura|NumFactura','0400');
CkXml_UpdateChildContent(xmlToSign,'Factura|CabeceraFactura|FechaExpedicionFactura','12-05-2022');
CkXml_UpdateChildContent(xmlToSign,'Factura|CabeceraFactura|HoraExpedicionFactura','12:20:15');
CkXml_UpdateChildContent(xmlToSign,'Factura|DatosFactura|DescripcionFactura','Venta maquinaria y existencias');
CkXml_UpdateChildContent(xmlToSign,'Factura|DatosFactura|ImporteTotalFactura','1936.00');
CkXml_UpdateChildContent(xmlToSign,'Factura|DatosFactura|Claves|IDClave|ClaveRegimenIvaOpTrascendencia','01');
CkXml_UpdateChildContent(xmlToSign,'Factura|TipoDesglose|DesgloseFactura|Sujeta|NoExenta|DetalleNoExenta|TipoNoExenta','S1');
CkXml_UpdateChildContent(xmlToSign,'Factura|TipoDesglose|DesgloseFactura|Sujeta|NoExenta|DetalleNoExenta|DesgloseIVA|DetalleIVA|BaseImponible','1600.00');
CkXml_UpdateChildContent(xmlToSign,'Factura|TipoDesglose|DesgloseFactura|Sujeta|NoExenta|DetalleNoExenta|DesgloseIVA|DetalleIVA|TipoImpositivo','21.00');
CkXml_UpdateChildContent(xmlToSign,'Factura|TipoDesglose|DesgloseFactura|Sujeta|NoExenta|DetalleNoExenta|DesgloseIVA|DetalleIVA|CuotaImpuesto','336.00');
CkXml_UpdateChildContent(xmlToSign,'HuellaTBAI|EncadenamientoFacturaAnterior|SerieFacturaAnterior','A2022');
CkXml_UpdateChildContent(xmlToSign,'HuellaTBAI|EncadenamientoFacturaAnterior|NumFacturaAnterior','0399');
CkXml_UpdateChildContent(xmlToSign,'HuellaTBAI|EncadenamientoFacturaAnterior|FechaExpedicionFacturaAnterior','06-05-2022');
CkXml_UpdateChildContent(xmlToSign,'HuellaTBAI|EncadenamientoFacturaAnterior|SignatureValueFirmaFacturaAnterior','KdxKFNXeNJuBZNjgvKEa9lICamXs9MHuin6R+yuFHZw9aMewuBvdhaMr7g0eUz8aNYEa1elpCTr7aLgVZjQrFQK/TjIg353iAVxA');
CkXml_UpdateChildContent(xmlToSign,'HuellaTBAI|Software|LicenciaTBAI','TBAIPRUEBA');
CkXml_UpdateChildContent(xmlToSign,'HuellaTBAI|Software|EntidadDesarrolladora|NIF','A48119820');
CkXml_UpdateChildContent(xmlToSign,'HuellaTBAI|Software|Nombre','DFBTBAI');
CkXml_UpdateChildContent(xmlToSign,'HuellaTBAI|Software|Version','1.04.00');
CkXml_UpdateChildContent(xmlToSign,'HuellaTBAI|NumSerieDispositivo','GP4FC5J');

gen := CkXmlDSigGen_Create();

CkXmlDSigGen_putSigLocation(gen,'T:TicketBai');
CkXmlDSigGen_putSigLocationMod(gen,0);
CkXmlDSigGen_putSigId(gen,'Signature-43861174-a0e6-45f9-afbf-8b48c46c6c13-Signature');
CkXmlDSigGen_putSigNamespacePrefix(gen,'ds');
CkXmlDSigGen_putSigNamespaceUri(gen,'http://www.w3.org/2000/09/xmldsig#');
CkXmlDSigGen_putSigValueId(gen,'Signature-43861174-a0e6-45f9-afbf-8b48c46c6c13-SignatureValue');
CkXmlDSigGen_putSignedInfoCanonAlg(gen,'C14N');
CkXmlDSigGen_putSignedInfoDigestMethod(gen,'sha256');

// Set the KeyInfoId before adding references..
CkXmlDSigGen_putKeyInfoId(gen,'Signature-43861174-a0e6-45f9-afbf-8b48c46c6c13-KeyInfo');

// Create an Object to be added to the Signature.
object1 := CkXml_Create();
CkXml_putTag(object1,'xades:QualifyingProperties');
CkXml_AddAttribute(object1,'xmlns:xades','http://uri.etsi.org/01903/v1.3.2#');
CkXml_AddAttribute(object1,'Id','Signature-43861174-a0e6-45f9-afbf-8b48c46c6c13-QualifyingProperties');
CkXml_AddAttribute(object1,'Target','#Signature-43861174-a0e6-45f9-afbf-8b48c46c6c13-Signature');
CkXml_AddAttribute(object1,'xmlns:ds','http://www.w3.org/2000/09/xmldsig#');
CkXml_UpdateAttrAt(object1,'xades:SignedProperties',True,'Id','Signature-43861174-a0e6-45f9-afbf-8b48c46c6c13-SignedProperties');
CkXml_UpdateChildContent(object1,'xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningTime','TO BE GENERATED BY CHILKAT');
CkXml_UpdateAttrAt(object1,'xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestMethod',True,'Algorithm','http://www.w3.org/2001/04/xmlenc#sha512');
CkXml_UpdateChildContent(object1,'xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestValue','TO BE GENERATED BY CHILKAT');
CkXml_UpdateChildContent(object1,'xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:IssuerSerialV2','TO BE GENERATED BY CHILKAT');
CkXml_UpdateChildContent(object1,'xades:SignedProperties|xades:SignedSignatureProperties|xades:SignaturePolicyIdentifier|xades:SignaturePolicyId|xades:SigPolicyId|xades:Identifier','https://www.batuz.eus/fitxategiak/batuz/ticketbai/sinadura_elektronikoaren_zehaztapenak_especificaciones_de_la_firma_electronica_v1_0.pdf');
CkXml_UpdateChildContent(object1,'xades:SignedProperties|xades:SignedSignatureProperties|xades:SignaturePolicyIdentifier|xades:SignaturePolicyId|xades:SigPolicyId|xades:Description','');
CkXml_UpdateAttrAt(object1,'xades:SignedProperties|xades:SignedSignatureProperties|xades:SignaturePolicyIdentifier|xades:SignaturePolicyId|xades:SigPolicyHash|ds:DigestMethod',True,'Algorithm','http://www.w3.org/2001/04/xmlenc#sha256');
CkXml_UpdateChildContent(object1,'xades:SignedProperties|xades:SignedSignatureProperties|xades:SignaturePolicyIdentifier|xades:SignaturePolicyId|xades:SigPolicyHash|ds:DigestValue','Quzn98x3PMbSHwbUzaj5f5KOpiH0u8bvmwbbbNkO9Es=');
CkXml_UpdateChildContent(object1,'xades:SignedProperties|xades:SignedSignatureProperties|xades:SignaturePolicyIdentifier|xades:SignaturePolicyId|xades:SigPolicyQualifiers|xades:SigPolicyQualifier|xades:SPURI','https://www.batuz.eus/fitxategiak/batuz/ticketbai/sinadura_elektronikoaren_zehaztapenak_especificaciones_de_la_firma_electronica_v1_0.pdf');
CkXml_UpdateAttrAt(object1,'xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat',True,'ObjectReference','#Reference-43b5c8a3-7ce0-4056-bdbe-d2076d8ac825');
CkXml_UpdateChildContent(object1,'xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Description','');
CkXml_UpdateAttrAt(object1,'xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Identifier',True,'Qualifier','OIDAsURN');
CkXml_UpdateChildContent(object1,'xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Identifier','urn:oid:1.2.840.10003.5.109.10');
CkXml_UpdateChildContent(object1,'xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Description','');
CkXml_UpdateChildContent(object1,'xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:MimeType','text/xml');
CkXml_UpdateChildContent(object1,'xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Encoding','');

CkXmlDSigGen_AddObject(gen,'',CkXml__getXml(object1),'','');

// -------- Reference 1 --------
CkXmlDSigGen_AddSameDocRef(gen,'','sha512','C14N','','http://www.w3.org/2000/09/xmldsig#Object');
CkXmlDSigGen_SetRefIdAttr(gen,'','Reference-43b5c8a3-7ce0-4056-bdbe-d2076d8ac825');

// -------- Reference 2 --------
CkXmlDSigGen_AddObjectRef(gen,'Signature-43861174-a0e6-45f9-afbf-8b48c46c6c13-SignedProperties','sha512','','','http://uri.etsi.org/01903#SignedProperties');

// -------- Reference 3 --------
CkXmlDSigGen_AddSameDocRef(gen,'Signature-43861174-a0e6-45f9-afbf-8b48c46c6c13-KeyInfo','sha512','','','');

// Provide a certificate + private key. (PFX password is test123)
cert := CkCert_Create();
success := CkCert_LoadPfxFile(cert,'qa_data/pfx/cert_test123.pfx','test123');
if (success <> True) then
  begin
    Memo1.Lines.Add(CkCert__lastErrorText(cert));
    Exit;
  end;
CkXmlDSigGen_SetX509Cert(gen,cert,True);

CkXmlDSigGen_putKeyInfoType(gen,'X509Data+KeyValue');
CkXmlDSigGen_putX509Type(gen,'Certificate');

// Load XML to be signed...
sbXml := CkStringBuilder_Create();
CkXml_GetXmlSb(xmlToSign,sbXml);

CkXmlDSigGen_putBehaviors(gen,'IndentedSignature,TransformSignatureXPath');

// Sign the XML...
success := CkXmlDSigGen_CreateXmlDSigSb(gen,sbXml);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkXmlDSigGen__lastErrorText(gen));
    Exit;
  end;
// -----------------------------------------------

// Save the signed XML to a file.
success := CkStringBuilder_WriteFile(sbXml,'qa_output/signedXml_2.xml','utf-8',False);

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

// ----------------------------------------
// Verify the signatures we just produced...
verifier := CkXmlDSig_Create();
success := CkXmlDSig_LoadSignatureSb(verifier,sbXml);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkXmlDSig__lastErrorText(verifier));
    Exit;
  end;

numSigs := CkXmlDSig_getNumSignatures(verifier);
verifyIdx := 0;
while verifyIdx < numSigs do
  begin
    CkXmlDSig_putSelector(verifier,verifyIdx);
    verified := CkXmlDSig_VerifySignature(verifier,True);
    if (verified <> True) then
      begin
        Memo1.Lines.Add(CkXmlDSig__lastErrorText(verifier));
        Exit;
      end;
    verifyIdx := verifyIdx + 1;
  end;

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

CkXml_Dispose(xmlToSign);
CkXmlDSigGen_Dispose(gen);
CkXml_Dispose(object1);
CkCert_Dispose(cert);
CkStringBuilder_Dispose(sbXml);
CkXmlDSig_Dispose(verifier);

end;