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(Visual FoxPro) UBL XAdES Enveloped Signature

Demonstrates how to create a UBL XAdES enveloped signature.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

LOCAL lnSuccess
LOCAL loXmlToSign
LOCAL loGen
LOCAL loObject1
LOCAL loCert
LOCAL loSbXml
LOCAL loVerifier
LOCAL lnNumSigs
LOCAL lnVerifyIdx
LOCAL lnVerified

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

lnSuccess = 1

* 
* 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

loXmlToSign = CreateObject('Chilkat_9_5_0.Xml')
loXmlToSign.Tag = "CreditNote"
loXmlToSign.AddAttribute("xmlns","urn:oasis:names:specification:ubl:schema:xsd:CreditNote-2")
loXmlToSign.AddAttribute("xmlns:cac","urn:oasis:names:specification:ubl:schema:xsd:CommonAggregateComponents-2")
loXmlToSign.AddAttribute("xmlns:cbc","urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2")
loXmlToSign.AddAttribute("xmlns:ext","urn:oasis:names:specification:ubl:schema:xsd:CommonExtensionComponents-2")
loXmlToSign.UpdateAttrAt("ext:UBLExtensions|ext:UBLExtension",1,"xmlns:sac","urn:oasis:names:specification:ubl:schema:xsd:SignatureAggregateComponents-2")
loXmlToSign.UpdateAttrAt("ext:UBLExtensions|ext:UBLExtension",1,"xmlns:sig","urn:oasis:names:specification:ubl:schema:xsd:CommonSignatureComponents-2")
loXmlToSign.UpdateChildContent("ext:UBLExtensions|ext:UBLExtension|ext:ExtensionContent|sig:UBLDocumentSignatures|sac:SignatureInformation","")
loXmlToSign.UpdateChildContent("cbc:CustomizationID","urn:cen.eu:en16931:2017")
loXmlToSign.UpdateChildContent("cbc:ProfileID","P1")
loXmlToSign.UpdateChildContent("cbc:ID","c2ad1540-cf12-4e83-b47c-906aac70242e")
loXmlToSign.UpdateChildContent("cbc:IssueDate","2009-12-15")
loXmlToSign.UpdateAttrAt("cbc:Note",1,"languageID","en")
loXmlToSign.UpdateChildContent("cbc:Note","Ordered in our booth at the convention.")
loXmlToSign.UpdateAttrAt("cbc:DocumentCurrencyCode",1,"listAgencyID","6")
loXmlToSign.UpdateAttrAt("cbc:DocumentCurrencyCode",1,"listID","ISO 4217 Alpha")
loXmlToSign.UpdateChildContent("cbc:DocumentCurrencyCode","HRK")
loXmlToSign.UpdateChildContent("cbc:AccountingCost","Project cost code 123")
loXmlToSign.UpdateChildContent("cac:InvoicePeriod|cbc:StartDate","2009-11-01")
loXmlToSign.UpdateChildContent("cac:InvoicePeriod|cbc:EndDate","2009-11-30")
loXmlToSign.UpdateChildContent("cac:OrderReference|cbc:ID","123")
loXmlToSign.UpdateChildContent("cac:ContractDocumentReference|cbc:ID","Contract321")
loXmlToSign.UpdateChildContent("cac:ContractDocumentReference|cbc:DocumentType","Framework agreement")
loXmlToSign.UpdateChildContent("cac:AdditionalDocumentReference|cbc:ID","Doc1")
loXmlToSign.UpdateChildContent("cac:AdditionalDocumentReference|cbc:DocumentType","Timesheet")
loXmlToSign.UpdateChildContent("cac:AdditionalDocumentReference|cac:Attachment|cac:ExternalReference|cbc:URI","http://www.suppliersite.eu/sheet001.html")
loXmlToSign.UpdateChildContent("cac:AdditionalDocumentReference[1]|cbc:ID","Doc2")
loXmlToSign.UpdateChildContent("cac:AdditionalDocumentReference[1]|cbc:DocumentType","Drawing")
loXmlToSign.UpdateAttrAt("cac:AdditionalDocumentReference[1]|cac:Attachment|cbc:EmbeddedDocumentBinaryObject",1,"mimeCode","application/pdf")
loXmlToSign.UpdateChildContent("cac:AdditionalDocumentReference[1]|cac:Attachment|cbc:EmbeddedDocumentBinaryObject","UjBsR09EbGhjZ0dTQUxNQUFBUUNBRU1tQ1p0dU1GUXhEUzhi")
loXmlToSign.UpdateChildContent("cac:AccountingSupplierParty|cac:Party|cac:PartyIdentification|cbc:ID","9934:18683136487::HR99:276")
loXmlToSign.UpdateChildContent("cac:AccountingSupplierParty|cac:Party|cac:PostalAddress|cbc:StreetName","KATANCICEVA")
loXmlToSign.UpdateChildContent("cac:AccountingSupplierParty|cac:Party|cac:PostalAddress|cbc:CityName","ZAGREB")
loXmlToSign.UpdateChildContent("cac:AccountingSupplierParty|cac:Party|cac:PostalAddress|cbc:PostalZone","10000")
loXmlToSign.UpdateChildContent("cac:AccountingSupplierParty|cac:Party|cac:PostalAddress|cac:Country|cbc:IdentificationCode","HR")
loXmlToSign.UpdateChildContent("cac:AccountingSupplierParty|cac:Party|cac:PartyTaxScheme|cbc:CompanyID","HR18683136487")
loXmlToSign.UpdateChildContent("cac:AccountingSupplierParty|cac:Party|cac:PartyTaxScheme|cac:TaxScheme|cbc:ID","FRE")
loXmlToSign.UpdateChildContent("cac:AccountingSupplierParty|cac:Party|cac:PartyLegalEntity|cbc:RegistrationName","MINISTARSTVO FINANCIJA")
loXmlToSign.UpdateChildContent("cac:AccountingSupplierParty|cac:Party|cac:Contact|cbc:Name","JURAJ MARKOVIC")
loXmlToSign.UpdateChildContent("cac:AccountingSupplierParty|cac:Party|cac:Contact|cbc:ElectronicMail","juraj.markovic@fina.hr")
loXmlToSign.UpdateChildContent("cac:AccountingCustomerParty|cac:Party|cac:PartyIdentification|cbc:ID","9934:49811265576::HR99:NOVO1")
loXmlToSign.UpdateChildContent("cac:AccountingCustomerParty|cac:Party|cac:PostalAddress|cbc:StreetName","GETALDICEVA 4")
loXmlToSign.UpdateChildContent("cac:AccountingCustomerParty|cac:Party|cac:PostalAddress|cbc:CityName","ZAGREB")
loXmlToSign.UpdateChildContent("cac:AccountingCustomerParty|cac:Party|cac:PostalAddress|cbc:PostalZone","10000")
loXmlToSign.UpdateChildContent("cac:AccountingCustomerParty|cac:Party|cac:PostalAddress|cac:Country|cbc:IdentificationCode","HR")
loXmlToSign.UpdateChildContent("cac:AccountingCustomerParty|cac:Party|cac:PartyTaxScheme|cbc:CompanyID","HR49811265576")
loXmlToSign.UpdateChildContent("cac:AccountingCustomerParty|cac:Party|cac:PartyTaxScheme|cac:TaxScheme|cbc:ID","VAT")
loXmlToSign.UpdateChildContent("cac:AccountingCustomerParty|cac:Party|cac:PartyLegalEntity|cbc:RegistrationName","NOVO1")
loXmlToSign.UpdateChildContent("cac:Delivery|cac:DeliveryLocation|cac:Address|cac:Country|cbc:IdentificationCode","HR")
loXmlToSign.UpdateChildContent("cac:PaymentMeans|cbc:PaymentMeansCode","30")
loXmlToSign.UpdateChildContent("cac:PaymentMeans|cbc:InstructionNote","Neki opis placanja")
loXmlToSign.UpdateChildContent("cac:PaymentMeans|cbc:PaymentID","HR00 12456")
loXmlToSign.UpdateChildContent("cac:PaymentMeans|cac:PayeeFinancialAccount|cbc:ID","HR1210010051863000160")
loXmlToSign.UpdateChildContent("cac:PaymentTerms|cbc:Note","Neki uvjeti placanja")
loXmlToSign.UpdateAttrAt("cac:TaxTotal|cbc:TaxAmount",1,"currencyID","HRK")
loXmlToSign.UpdateChildContent("cac:TaxTotal|cbc:TaxAmount","25.00")
loXmlToSign.UpdateAttrAt("cac:TaxTotal|cac:TaxSubtotal|cbc:TaxableAmount",1,"currencyID","HRK")
loXmlToSign.UpdateChildContent("cac:TaxTotal|cac:TaxSubtotal|cbc:TaxableAmount","100.00")
loXmlToSign.UpdateAttrAt("cac:TaxTotal|cac:TaxSubtotal|cbc:TaxAmount",1,"currencyID","HRK")
loXmlToSign.UpdateChildContent("cac:TaxTotal|cac:TaxSubtotal|cbc:TaxAmount","25.00")
loXmlToSign.UpdateChildContent("cac:TaxTotal|cac:TaxSubtotal|cac:TaxCategory|cbc:ID","S")
loXmlToSign.UpdateChildContent("cac:TaxTotal|cac:TaxSubtotal|cac:TaxCategory|cbc:Percent","25")
loXmlToSign.UpdateChildContent("cac:TaxTotal|cac:TaxSubtotal|cac:TaxCategory|cac:TaxScheme|cbc:ID","VAT")
loXmlToSign.UpdateAttrAt("cac:LegalMonetaryTotal|cbc:LineExtensionAmount",1,"currencyID","HRK")
loXmlToSign.UpdateChildContent("cac:LegalMonetaryTotal|cbc:LineExtensionAmount","100.00")
loXmlToSign.UpdateAttrAt("cac:LegalMonetaryTotal|cbc:TaxExclusiveAmount",1,"currencyID","HRK")
loXmlToSign.UpdateChildContent("cac:LegalMonetaryTotal|cbc:TaxExclusiveAmount","100.00")
loXmlToSign.UpdateAttrAt("cac:LegalMonetaryTotal|cbc:TaxInclusiveAmount",1,"currencyID","HRK")
loXmlToSign.UpdateChildContent("cac:LegalMonetaryTotal|cbc:TaxInclusiveAmount","125.00")
loXmlToSign.UpdateAttrAt("cac:LegalMonetaryTotal|cbc:PayableAmount",1,"currencyID","HRK")
loXmlToSign.UpdateChildContent("cac:LegalMonetaryTotal|cbc:PayableAmount","125.00")
loXmlToSign.UpdateChildContent("cac:CreditNoteLine|cbc:ID","1")
loXmlToSign.UpdateAttrAt("cac:CreditNoteLine|cbc:CreditedQuantity",1,"unitCode","H87")
loXmlToSign.UpdateChildContent("cac:CreditNoteLine|cbc:CreditedQuantity","1.000")
loXmlToSign.UpdateAttrAt("cac:CreditNoteLine|cbc:LineExtensionAmount",1,"currencyID","HRK")
loXmlToSign.UpdateChildContent("cac:CreditNoteLine|cbc:LineExtensionAmount","100.00")
loXmlToSign.UpdateChildContent("cac:CreditNoteLine|cac:Item|cbc:Description","Neki detaljniji opis proizvoda ide ovdje")
loXmlToSign.UpdateChildContent("cac:CreditNoteLine|cac:Item|cbc:Name","Neki proizvod")
loXmlToSign.UpdateChildContent("cac:CreditNoteLine|cac:Item|cac:OriginCountry|cbc:IdentificationCode","HR")
loXmlToSign.UpdateChildContent("cac:CreditNoteLine|cac:Item|cac:ClassifiedTaxCategory|cbc:ID","S")
loXmlToSign.UpdateChildContent("cac:CreditNoteLine|cac:Item|cac:ClassifiedTaxCategory|cbc:Percent","25")
loXmlToSign.UpdateChildContent("cac:CreditNoteLine|cac:Item|cac:ClassifiedTaxCategory|cac:TaxScheme|cbc:ID","VAT")
loXmlToSign.UpdateChildContent("cac:CreditNoteLine|cac:Item|cac:AdditionalItemProperty|cbc:Name","Boja")
loXmlToSign.UpdateChildContent("cac:CreditNoteLine|cac:Item|cac:AdditionalItemProperty|cbc:Value","Plava")
loXmlToSign.UpdateChildContent("cac:CreditNoteLine|cac:Item|cac:AdditionalItemProperty[1]|cbc:Name","Masa")
loXmlToSign.UpdateChildContent("cac:CreditNoteLine|cac:Item|cac:AdditionalItemProperty[1]|cbc:Value","1,2 Kg")
loXmlToSign.UpdateAttrAt("cac:CreditNoteLine|cac:Price|cbc:PriceAmount",1,"currencyID","HRK")
loXmlToSign.UpdateChildContent("cac:CreditNoteLine|cac:Price|cbc:PriceAmount","100.000000")
loXmlToSign.UpdateAttrAt("cac:CreditNoteLine|cac:Price|cbc:BaseQuantity",1,"unitCode","H87")
loXmlToSign.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.

loGen = CreateObject('Chilkat_9_5_0.XmlDSigGen')

loGen.SigLocation = "CreditNote|ext:UBLExtensions|ext:UBLExtension|ext:ExtensionContent|sig:UBLDocumentSignatures|sac:SignatureInformation"
loGen.SigLocationMod = 0
loGen.SigId = "Signature-7f4c4719515a4a0a8ce4d1b983a2ec69"
loGen.SigNamespacePrefix = ""
loGen.SigNamespaceUri = "http://www.w3.org/2000/09/xmldsig#"
loGen.SignedInfoCanonAlg = "C14N"
loGen.SignedInfoDigestMethod = "sha256"

* Create an Object to be added to the Signature.
loObject1 = CreateObject('Chilkat_9_5_0.Xml')
loObject1.Tag = "xades:QualifyingProperties"
loObject1.AddAttribute("xmlns:ds","http://www.w3.org/2000/09/xmldsig#")
loObject1.AddAttribute("xmlns:xades","http://uri.etsi.org/01903/v1.3.2#")
loObject1.AddAttribute("Target","#Signature-7f4c4719515a4a0a8ce4d1b983a2ec69")
loObject1.UpdateAttrAt("xades:SignedProperties",1,"Id","SignedProperties-6573207f4ad64b49b0310f7a9e2dfadc")
loObject1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningTime","TO BE GENERATED BY CHILKAT")
* Note: It may be that http://www.w3.org/2001/04/xmlenc#sha256 is needed in the following line instead of http://www.w3.org/2000/09/xmldsig#sha1
loObject1.UpdateAttrAt("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:CertDigest|ds:DigestMethod",1,"Algorithm","http://www.w3.org/2000/09/xmldsig#sha1")
loObject1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:CertDigest|ds:DigestValue","TO BE GENERATED BY CHILKAT")
loObject1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:IssuerSerial|ds:X509IssuerName","TO BE GENERATED BY CHILKAT")
loObject1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:IssuerSerial|ds:X509SerialNumber","TO BE GENERATED BY CHILKAT")
loObject1.UpdateAttrAt("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat",1,"ObjectReference","")
loObject1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Description","document")
loObject1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:MimeType","application/xml")
loObject1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Encoding","UTF-8")

loGen.AddObject("",loObject1.GetXml(),"","")

* -------- Reference 1 --------
loGen.AddSameDocRef("","sha256","","","")

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

* Provide a certificate + private key. (PFX password is test123)
loCert = CreateObject('Chilkat_9_5_0.Cert')
lnSuccess = loCert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123")
IF (lnSuccess <> 1) THEN
    ? loCert.LastErrorText
    RELEASE loXmlToSign
    RELEASE loGen
    RELEASE loObject1
    RELEASE loCert
    CANCEL
ENDIF

loGen.SetX509Cert(loCert,1)

loGen.KeyInfoType = "X509Data+KeyValue"
loGen.X509Type = "IssuerSerial,SubjectName,SKI,Certificate"

* Load XML to be signed...
loSbXml = CreateObject('Chilkat_9_5_0.StringBuilder')
loXmlToSign.GetXmlSb(loSbXml)

* 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>
loGen.Behaviors = "IndentedSignature,UBLDocumentSignatures"

* Sign the XML...
lnSuccess = loGen.CreateXmlDSigSb(loSbXml)
IF (lnSuccess <> 1) THEN
    ? loGen.LastErrorText
    RELEASE loXmlToSign
    RELEASE loGen
    RELEASE loObject1
    RELEASE loCert
    RELEASE loSbXml
    CANCEL
ENDIF

* -----------------------------------------------

* Save the signed XML to a file.
lnSuccess = loSbXml.WriteFile("qa_output/signedXml.xml","utf-8",0)

? loSbXml.GetAsString()

* ----------------------------------------
* Verify the signature we just produced...
loVerifier = CreateObject('Chilkat_9_5_0.XmlDSig')
lnSuccess = loVerifier.LoadSignatureSb(loSbXml)
IF (lnSuccess <> 1) THEN
    ? loVerifier.LastErrorText
    RELEASE loXmlToSign
    RELEASE loGen
    RELEASE loObject1
    RELEASE loCert
    RELEASE loSbXml
    RELEASE loVerifier
    CANCEL
ENDIF

* We should have just one signature..
lnNumSigs = loVerifier.NumSignatures
lnVerifyIdx = 0
DO WHILE lnVerifyIdx < lnNumSigs
    loVerifier.Selector = lnVerifyIdx
    lnVerified = loVerifier.VerifySignature(1)
    IF (lnVerified <> 1) THEN
        ? loVerifier.LastErrorText
        RELEASE loXmlToSign
        RELEASE loGen
        RELEASE loObject1
        RELEASE loCert
        RELEASE loSbXml
        RELEASE loVerifier
        CANCEL
    ENDIF

    lnVerifyIdx = lnVerifyIdx + 1
ENDDO

? "The signature was successfully verified."

RELEASE loXmlToSign
RELEASE loGen
RELEASE loObject1
RELEASE loCert
RELEASE loSbXml
RELEASE loVerifier
 

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