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(MFC) UBL XAdES Enveloped Signature

Demonstrates how to create a UBL XAdES enveloped signature.

Note: This example requires Chilkat v9.5.0.80 or greater.

Chilkat C/C++ Library Downloads

MS Visual C/C++ Libs

See Also: Using MFC CString in Chilkat

#include <CkXml.h>
#include <CkXmlDSigGen.h>
#include <CkCert.h>
#include <CkStringBuilder.h>
#include <CkXmlDSig.h>

void ChilkatSample(void)
    {
    CkString strOut;

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

    bool success = true;

    // 
    // The following code creates the XML document to be signed.
    // (It is also possible to simply load the XML into the Chilkat XML object by calling the LoadXml method.)

    // A sample (already signed) of this XML is available here:  External link: credit-note-en16931-xades-signed.xml

    // Also, you may use this online tool to generate code from sample XML: 
    // Generate Code to Create XML

    CkXml xmlToSign;
    xmlToSign.put_Tag("CreditNote");
    xmlToSign.AddAttribute("xmlns","urn:oasis:names:specification:ubl:schema:xsd:CreditNote-2");
    xmlToSign.AddAttribute("xmlns:cac","urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2");
    xmlToSign.AddAttribute("xmlns:cbc","urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2");
    xmlToSign.AddAttribute("xmlns:ext","urn:oasis:names:specification:ubl:schema:xsd:CommonExtensionComponents-2");
    xmlToSign.UpdateAttrAt("ext:UBLExtensions|ext:UBLExtension",true,"xmlns:sac","urn:oasis:names:specification:ubl:schema:xsd:SignatureAggregateComponents-2");
    xmlToSign.UpdateAttrAt("ext:UBLExtensions|ext:UBLExtension",true,"xmlns:sig","urn:oasis:names:specification:ubl:schema:xsd:CommonSignatureComponents-2");
    xmlToSign.UpdateChildContent("ext:UBLExtensions|ext:UBLExtension|ext:ExtensionContent|sig:UBLDocumentSignatures|sac:SignatureInformation","");
    xmlToSign.UpdateChildContent("cbc:CustomizationID","urn:cen.eu:en16931:2017");
    xmlToSign.UpdateChildContent("cbc:ProfileID","P1");
    xmlToSign.UpdateChildContent("cbc:ID","c2ad1540-cf12-4e83-b47c-906aac70242e");
    xmlToSign.UpdateChildContent("cbc:IssueDate","2009-12-15");
    xmlToSign.UpdateAttrAt("cbc:Note",true,"languageID","en");
    xmlToSign.UpdateChildContent("cbc:Note","Ordered in our booth at the convention.");
    xmlToSign.UpdateAttrAt("cbc:DocumentCurrencyCode",true,"listAgencyID","6");
    xmlToSign.UpdateAttrAt("cbc:DocumentCurrencyCode",true,"listID","ISO 4217 Alpha");
    xmlToSign.UpdateChildContent("cbc:DocumentCurrencyCode","HRK");
    xmlToSign.UpdateChildContent("cbc:AccountingCost","Project cost code 123");
    xmlToSign.UpdateChildContent("cac:InvoicePeriod|cbc:StartDate","2009-11-01");
    xmlToSign.UpdateChildContent("cac:InvoicePeriod|cbc:EndDate","2009-11-30");
    xmlToSign.UpdateChildContent("cac:OrderReference|cbc:ID","123");
    xmlToSign.UpdateChildContent("cac:ContractDocumentReference|cbc:ID","Contract321");
    xmlToSign.UpdateChildContent("cac:ContractDocumentReference|cbc:DocumentType","Framework agreement");
    xmlToSign.UpdateChildContent("cac:AdditionalDocumentReference|cbc:ID","Doc1");
    xmlToSign.UpdateChildContent("cac:AdditionalDocumentReference|cbc:DocumentType","Timesheet");
    xmlToSign.UpdateChildContent("cac:AdditionalDocumentReference|cac:Attachment|cac:ExternalReference|cbc:URI","http://www.suppliersite.eu/sheet001.html");
    xmlToSign.UpdateChildContent("cac:AdditionalDocumentReference[1]|cbc:ID","Doc2");
    xmlToSign.UpdateChildContent("cac:AdditionalDocumentReference[1]|cbc:DocumentType","Drawing");
    xmlToSign.UpdateAttrAt("cac:AdditionalDocumentReference[1]|cac:Attachment|cbc:EmbeddedDocumentBinaryObject",true,"mimeCode","application/pdf");
    xmlToSign.UpdateChildContent("cac:AdditionalDocumentReference[1]|cac:Attachment|cbc:EmbeddedDocumentBinaryObject","UjBsR09EbGhjZ0dTQUxNQUFBUUNBRU1tQ1p0dU1GUXhEUzhi");
    xmlToSign.UpdateChildContent("cac:AccountingSupplierParty|cac:Party|cac:PartyIdentification|cbc:ID","9934:18683136487::HR99:276");
    xmlToSign.UpdateChildContent("cac:AccountingSupplierParty|cac:Party|cac:PostalAddress|cbc:StreetName","KATANCICEVA");
    xmlToSign.UpdateChildContent("cac:AccountingSupplierParty|cac:Party|cac:PostalAddress|cbc:CityName","ZAGREB");
    xmlToSign.UpdateChildContent("cac:AccountingSupplierParty|cac:Party|cac:PostalAddress|cbc:PostalZone","10000");
    xmlToSign.UpdateChildContent("cac:AccountingSupplierParty|cac:Party|cac:PostalAddress|cac:Country|cbc:IdentificationCode","HR");
    xmlToSign.UpdateChildContent("cac:AccountingSupplierParty|cac:Party|cac:PartyTaxScheme|cbc:CompanyID","HR18683136487");
    xmlToSign.UpdateChildContent("cac:AccountingSupplierParty|cac:Party|cac:PartyTaxScheme|cac:TaxScheme|cbc:ID","FRE");
    xmlToSign.UpdateChildContent("cac:AccountingSupplierParty|cac:Party|cac:PartyLegalEntity|cbc:RegistrationName","MINISTARSTVO FINANCIJA");
    xmlToSign.UpdateChildContent("cac:AccountingSupplierParty|cac:Party|cac:Contact|cbc:Name","JURAJ MARKOVIC");
    xmlToSign.UpdateChildContent("cac:AccountingSupplierParty|cac:Party|cac:Contact|cbc:ElectronicMail","juraj.markovic@fina.hr");
    xmlToSign.UpdateChildContent("cac:AccountingCustomerParty|cac:Party|cac:PartyIdentification|cbc:ID","9934:49811265576::HR99:NOVO1");
    xmlToSign.UpdateChildContent("cac:AccountingCustomerParty|cac:Party|cac:PostalAddress|cbc:StreetName","GETALDICEVA 4");
    xmlToSign.UpdateChildContent("cac:AccountingCustomerParty|cac:Party|cac:PostalAddress|cbc:CityName","ZAGREB");
    xmlToSign.UpdateChildContent("cac:AccountingCustomerParty|cac:Party|cac:PostalAddress|cbc:PostalZone","10000");
    xmlToSign.UpdateChildContent("cac:AccountingCustomerParty|cac:Party|cac:PostalAddress|cac:Country|cbc:IdentificationCode","HR");
    xmlToSign.UpdateChildContent("cac:AccountingCustomerParty|cac:Party|cac:PartyTaxScheme|cbc:CompanyID","HR49811265576");
    xmlToSign.UpdateChildContent("cac:AccountingCustomerParty|cac:Party|cac:PartyTaxScheme|cac:TaxScheme|cbc:ID","VAT");
    xmlToSign.UpdateChildContent("cac:AccountingCustomerParty|cac:Party|cac:PartyLegalEntity|cbc:RegistrationName","NOVO1");
    xmlToSign.UpdateChildContent("cac:Delivery|cac:DeliveryLocation|cac:Address|cac:Country|cbc:IdentificationCode","HR");
    xmlToSign.UpdateChildContent("cac:PaymentMeans|cbc:PaymentMeansCode","30");
    xmlToSign.UpdateChildContent("cac:PaymentMeans|cbc:InstructionNote","Neki opis placanja");
    xmlToSign.UpdateChildContent("cac:PaymentMeans|cbc:PaymentID","HR00 12456");
    xmlToSign.UpdateChildContent("cac:PaymentMeans|cac:PayeeFinancialAccount|cbc:ID","HR1210010051863000160");
    xmlToSign.UpdateChildContent("cac:PaymentTerms|cbc:Note","Neki uvjeti placanja");
    xmlToSign.UpdateAttrAt("cac:TaxTotal|cbc:TaxAmount",true,"currencyID","HRK");
    xmlToSign.UpdateChildContent("cac:TaxTotal|cbc:TaxAmount","25.00");
    xmlToSign.UpdateAttrAt("cac:TaxTotal|cac:TaxSubtotal|cbc:TaxableAmount",true,"currencyID","HRK");
    xmlToSign.UpdateChildContent("cac:TaxTotal|cac:TaxSubtotal|cbc:TaxableAmount","100.00");
    xmlToSign.UpdateAttrAt("cac:TaxTotal|cac:TaxSubtotal|cbc:TaxAmount",true,"currencyID","HRK");
    xmlToSign.UpdateChildContent("cac:TaxTotal|cac:TaxSubtotal|cbc:TaxAmount","25.00");
    xmlToSign.UpdateChildContent("cac:TaxTotal|cac:TaxSubtotal|cac:TaxCategory|cbc:ID","S");
    xmlToSign.UpdateChildContent("cac:TaxTotal|cac:TaxSubtotal|cac:TaxCategory|cbc:Percent","25");
    xmlToSign.UpdateChildContent("cac:TaxTotal|cac:TaxSubtotal|cac:TaxCategory|cac:TaxScheme|cbc:ID","VAT");
    xmlToSign.UpdateAttrAt("cac:LegalMonetaryTotal|cbc:LineExtensionAmount",true,"currencyID","HRK");
    xmlToSign.UpdateChildContent("cac:LegalMonetaryTotal|cbc:LineExtensionAmount","100.00");
    xmlToSign.UpdateAttrAt("cac:LegalMonetaryTotal|cbc:TaxExclusiveAmount",true,"currencyID","HRK");
    xmlToSign.UpdateChildContent("cac:LegalMonetaryTotal|cbc:TaxExclusiveAmount","100.00");
    xmlToSign.UpdateAttrAt("cac:LegalMonetaryTotal|cbc:TaxInclusiveAmount",true,"currencyID","HRK");
    xmlToSign.UpdateChildContent("cac:LegalMonetaryTotal|cbc:TaxInclusiveAmount","125.00");
    xmlToSign.UpdateAttrAt("cac:LegalMonetaryTotal|cbc:PayableAmount",true,"currencyID","HRK");
    xmlToSign.UpdateChildContent("cac:LegalMonetaryTotal|cbc:PayableAmount","125.00");
    xmlToSign.UpdateChildContent("cac:CreditNoteLine|cbc:ID","1");
    xmlToSign.UpdateAttrAt("cac:CreditNoteLine|cbc:CreditedQuantity",true,"unitCode","H87");
    xmlToSign.UpdateChildContent("cac:CreditNoteLine|cbc:CreditedQuantity","1.000");
    xmlToSign.UpdateAttrAt("cac:CreditNoteLine|cbc:LineExtensionAmount",true,"currencyID","HRK");
    xmlToSign.UpdateChildContent("cac:CreditNoteLine|cbc:LineExtensionAmount","100.00");
    xmlToSign.UpdateChildContent("cac:CreditNoteLine|cac:Item|cbc:Description","Neki detaljniji opis proizvoda ide ovdje");
    xmlToSign.UpdateChildContent("cac:CreditNoteLine|cac:Item|cbc:Name","Neki proizvod");
    xmlToSign.UpdateChildContent("cac:CreditNoteLine|cac:Item|cac:OriginCountry|cbc:IdentificationCode","HR");
    xmlToSign.UpdateChildContent("cac:CreditNoteLine|cac:Item|cac:ClassifiedTaxCategory|cbc:ID","S");
    xmlToSign.UpdateChildContent("cac:CreditNoteLine|cac:Item|cac:ClassifiedTaxCategory|cbc:Percent","25");
    xmlToSign.UpdateChildContent("cac:CreditNoteLine|cac:Item|cac:ClassifiedTaxCategory|cac:TaxScheme|cbc:ID","VAT");
    xmlToSign.UpdateChildContent("cac:CreditNoteLine|cac:Item|cac:AdditionalItemProperty|cbc:Name","Boja");
    xmlToSign.UpdateChildContent("cac:CreditNoteLine|cac:Item|cac:AdditionalItemProperty|cbc:Value","Plava");
    xmlToSign.UpdateChildContent("cac:CreditNoteLine|cac:Item|cac:AdditionalItemProperty[1]|cbc:Name","Masa");
    xmlToSign.UpdateChildContent("cac:CreditNoteLine|cac:Item|cac:AdditionalItemProperty[1]|cbc:Value","1,2 Kg");
    xmlToSign.UpdateAttrAt("cac:CreditNoteLine|cac:Price|cbc:PriceAmount",true,"currencyID","HRK");
    xmlToSign.UpdateChildContent("cac:CreditNoteLine|cac:Price|cbc:PriceAmount","100.000000");
    xmlToSign.UpdateAttrAt("cac:CreditNoteLine|cac:Price|cbc:BaseQuantity",true,"unitCode","H87");
    xmlToSign.UpdateChildContent("cac:CreditNoteLine|cac:Price|cbc:BaseQuantity","1.000");

    // Use this online tool to generate XAdES code from a sample signed XML: 
    // Generate Code to Creaet XAdES from Sample XAdES

    // The following code was generated by the online tool.

    CkXmlDSigGen gen;

    gen.put_SigLocation("CreditNote|ext:UBLExtensions|ext:UBLExtension|ext:ExtensionContent|sig:UBLDocumentSignatures|sac:SignatureInformation");
    gen.put_SigLocationMod(0);
    gen.put_SigId("Signature-7f4c4719515a4a0a8ce4d1b983a2ec69");
    gen.put_SigNamespacePrefix("");
    gen.put_SigNamespaceUri("http://www.w3.org/2000/09/xmldsig#");
    gen.put_SignedInfoCanonAlg("C14N");
    gen.put_SignedInfoDigestMethod("sha256");

    // Create an Object to be added to the Signature.
    CkXml object1;
    object1.put_Tag("xades:QualifyingProperties");
    object1.AddAttribute("xmlns:ds","http://www.w3.org/2000/09/xmldsig#");
    object1.AddAttribute("xmlns:xades","http://uri.etsi.org/01903/v1.3.2#");
    object1.AddAttribute("Target","#Signature-7f4c4719515a4a0a8ce4d1b983a2ec69");
    object1.UpdateAttrAt("xades:SignedProperties",true,"Id","SignedProperties-6573207f4ad64b49b0310f7a9e2dfadc");
    object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningTime","TO BE GENERATED BY CHILKAT");
    object1.UpdateAttrAt("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:CertDigest|ds:DigestMethod",true,"Algorithm","http://www.w3.org/2000/09/xmldsig#sha1");
    object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:CertDigest|ds:DigestValue","TO BE GENERATED BY CHILKAT");
    object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:IssuerSerial|ds:X509IssuerName","TO BE GENERATED BY CHILKAT");
    object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:IssuerSerial|ds:X509SerialNumber","TO BE GENERATED BY CHILKAT");
    object1.UpdateAttrAt("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat",true,"ObjectReference","");
    object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Description","document");
    object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:MimeType","application/xml");
    object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Encoding","UTF-8");

    gen.AddObject("",object1.getXml(),"","");

    // -------- Reference 1 --------
    gen.AddSameDocRef("","sha256","","","");

    // -------- Reference 2 --------
    gen.AddObjectRef("SignedProperties-6573207f4ad64b49b0310f7a9e2dfadc","sha256","","","http://uri.etsi.org/01903#SignedProperties");

    // Provide a certificate + private key. (PFX password is test123)
    CkCert cert;
    success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123");
    if (success != true) {
        strOut.append(cert.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    gen.SetX509Cert(cert,true);

    gen.put_KeyInfoType("X509Data+KeyValue");
    gen.put_X509Type("IssuerSerial,SubjectName,SKI,Certificate");

    // Load XML to be signed...
    CkStringBuilder sbXml;
    xmlToSign.GetXmlSb(sbXml);

    // Adding the "UBLDocumentSignatures" behavior causes the following Transform to be used for the 
    // first Reference:   
    //   <Transform Algorithm="http://www.w3.org/TR/1999/REC-xpath-19991116"><XPath>count(ancestor-or-self::sig:UBLDocumentSignatures | here()/ancestor::sig:UBLDocumentSignatures[1]) &gt; count(ancestor-or-self::sig:UBLDocumentSignatures)</XPath></Transform>
    gen.put_Behaviors("IndentedSignature,UBLDocumentSignatures");

    // Sign the XML...
    success = gen.CreateXmlDSigSb(sbXml);
    if (success != true) {
        strOut.append(gen.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

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

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

    strOut.append(sbXml.getAsString());
    strOut.append("\r\n");

    // ----------------------------------------
    // Verify the signature we just produced...
    CkXmlDSig verifier;
    success = verifier.LoadSignatureSb(sbXml);
    if (success != true) {
        strOut.append(verifier.lastErrorText());
        strOut.append("\r\n");
        SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
        return;
    }

    // We should have just one signature..
    int numSigs = verifier.get_NumSignatures();
    int verifyIdx = 0;
    while (verifyIdx < numSigs) {
        verifier.put_Selector(verifyIdx);
        bool verified = verifier.VerifySignature(true);
        if (verified != true) {
            strOut.append(verifier.lastErrorText());
            strOut.append("\r\n");
            SetDlgItemText(IDC_EDIT1,strOut.getUnicode());
            return;
        }

        verifyIdx = verifyIdx + 1;
    }

    strOut.append("The signature was successfully verified.");
    strOut.append("\r\n");


    SetDlgItemText(IDC_EDIT1,strOut.getUnicode());

    }
 

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