(CkPython) TicketBAI Sign XML Example 2

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Second example to demonstrate how to sign XML for TicketBAI.

Chilkat Python Downloads install with pip pip3 install chilkat or download... Python Module for Windows, MacOS, Linux, Alpine Linux, Solaris

import sys
import chilkat

# 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 = chilkat.CkXml()
xmlToSign.put_Tag("T:TicketBai")
xmlToSign.AddAttribute("xmlns:T","urn:ticketbai:emision")
xmlToSign.UpdateChildContent("Cabecera|IDVersionTBAI","1.2")
xmlToSign.UpdateChildContent("Sujetos|Emisor|NIF","79732487C")
xmlToSign.UpdateChildContent("Sujetos|Emisor|ApellidosNombreRazonSocial","ARRIOLA LEJARDI ANE")
xmlToSign.UpdateChildContent("Sujetos|Destinatarios|IDDestinatario|NIF","A48012363")
xmlToSign.UpdateChildContent("Sujetos|Destinatarios|IDDestinatario|ApellidosNombreRazonSocial","ACADEMIA ESKOLA")
xmlToSign.UpdateChildContent("Factura|CabeceraFactura|SerieFactura","A2022")
xmlToSign.UpdateChildContent("Factura|CabeceraFactura|NumFactura","0400")
xmlToSign.UpdateChildContent("Factura|CabeceraFactura|FechaExpedicionFactura","12-05-2022")
xmlToSign.UpdateChildContent("Factura|CabeceraFactura|HoraExpedicionFactura","12:20:15")
xmlToSign.UpdateChildContent("Factura|DatosFactura|DescripcionFactura","Venta maquinaria y existencias")
xmlToSign.UpdateChildContent("Factura|DatosFactura|ImporteTotalFactura","1936.00")
xmlToSign.UpdateChildContent("Factura|DatosFactura|Claves|IDClave|ClaveRegimenIvaOpTrascendencia","01")
xmlToSign.UpdateChildContent("Factura|TipoDesglose|DesgloseFactura|Sujeta|NoExenta|DetalleNoExenta|TipoNoExenta","S1")
xmlToSign.UpdateChildContent("Factura|TipoDesglose|DesgloseFactura|Sujeta|NoExenta|DetalleNoExenta|DesgloseIVA|DetalleIVA|BaseImponible","1600.00")
xmlToSign.UpdateChildContent("Factura|TipoDesglose|DesgloseFactura|Sujeta|NoExenta|DetalleNoExenta|DesgloseIVA|DetalleIVA|TipoImpositivo","21.00")
xmlToSign.UpdateChildContent("Factura|TipoDesglose|DesgloseFactura|Sujeta|NoExenta|DetalleNoExenta|DesgloseIVA|DetalleIVA|CuotaImpuesto","336.00")
xmlToSign.UpdateChildContent("HuellaTBAI|EncadenamientoFacturaAnterior|SerieFacturaAnterior","A2022")
xmlToSign.UpdateChildContent("HuellaTBAI|EncadenamientoFacturaAnterior|NumFacturaAnterior","0399")
xmlToSign.UpdateChildContent("HuellaTBAI|EncadenamientoFacturaAnterior|FechaExpedicionFacturaAnterior","06-05-2022")
xmlToSign.UpdateChildContent("HuellaTBAI|EncadenamientoFacturaAnterior|SignatureValueFirmaFacturaAnterior","KdxKFNXeNJuBZNjgvKEa9lICamXs9MHuin6R+yuFHZw9aMewuBvdhaMr7g0eUz8aNYEa1elpCTr7aLgVZjQrFQK/TjIg353iAVxA")
xmlToSign.UpdateChildContent("HuellaTBAI|Software|LicenciaTBAI","TBAIPRUEBA")
xmlToSign.UpdateChildContent("HuellaTBAI|Software|EntidadDesarrolladora|NIF","A48119820")
xmlToSign.UpdateChildContent("HuellaTBAI|Software|Nombre","DFBTBAI")
xmlToSign.UpdateChildContent("HuellaTBAI|Software|Version","1.04.00")
xmlToSign.UpdateChildContent("HuellaTBAI|NumSerieDispositivo","GP4FC5J")

gen = chilkat.CkXmlDSigGen()

gen.put_SigLocation("T:TicketBai")
gen.put_SigLocationMod(0)
gen.put_SigId("Signature-43861174-a0e6-45f9-afbf-8b48c46c6c13-Signature")
gen.put_SigNamespacePrefix("ds")
gen.put_SigNamespaceUri("http://www.w3.org/2000/09/xmldsig#")
gen.put_SigValueId("Signature-43861174-a0e6-45f9-afbf-8b48c46c6c13-SignatureValue")
gen.put_SignedInfoCanonAlg("C14N")
gen.put_SignedInfoDigestMethod("sha256")

# Set the KeyInfoId before adding references..
gen.put_KeyInfoId("Signature-43861174-a0e6-45f9-afbf-8b48c46c6c13-KeyInfo")

# Create an Object to be added to the Signature.
object1 = chilkat.CkXml()
object1.put_Tag("xades:QualifyingProperties")
object1.AddAttribute("xmlns:xades","http://uri.etsi.org/01903/v1.3.2#")
object1.AddAttribute("Id","Signature-43861174-a0e6-45f9-afbf-8b48c46c6c13-QualifyingProperties")
object1.AddAttribute("Target","#Signature-43861174-a0e6-45f9-afbf-8b48c46c6c13-Signature")
object1.AddAttribute("xmlns:ds","http://www.w3.org/2000/09/xmldsig#")
object1.UpdateAttrAt("xades:SignedProperties",True,"Id","Signature-43861174-a0e6-45f9-afbf-8b48c46c6c13-SignedProperties")
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#sha512")
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.UpdateChildContent("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")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SignaturePolicyIdentifier|xades:SignaturePolicyId|xades:SigPolicyId|xades:Description","")
object1.UpdateAttrAt("xades:SignedProperties|xades:SignedSignatureProperties|xades:SignaturePolicyIdentifier|xades:SignaturePolicyId|xades:SigPolicyHash|ds:DigestMethod",True,"Algorithm","http://www.w3.org/2001/04/xmlenc#sha256")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SignaturePolicyIdentifier|xades:SignaturePolicyId|xades:SigPolicyHash|ds:DigestValue","Quzn98x3PMbSHwbUzaj5f5KOpiH0u8bvmwbbbNkO9Es=")
object1.UpdateChildContent("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")
object1.UpdateAttrAt("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat",True,"ObjectReference","#Reference-43b5c8a3-7ce0-4056-bdbe-d2076d8ac825")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Description","")
object1.UpdateAttrAt("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Identifier",True,"Qualifier","OIDAsURN")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Identifier","urn:oid:1.2.840.10003.5.109.10")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Description","")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:MimeType","text/xml")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Encoding","")

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

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

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

# -------- Reference 3 --------
gen.AddSameDocRef("Signature-43861174-a0e6-45f9-afbf-8b48c46c6c13-KeyInfo","sha512","","","")

# Provide a certificate + private key. (PFX password is test123)
cert = chilkat.CkCert()
success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123")
if (success != True):
    print(cert.lastErrorText())
    sys.exit()

gen.SetX509Cert(cert,True)

gen.put_KeyInfoType("X509Data+KeyValue")
gen.put_X509Type("Certificate")

# Load XML to be signed...
sbXml = chilkat.CkStringBuilder()
xmlToSign.GetXmlSb(sbXml)

gen.put_Behaviors("IndentedSignature,TransformSignatureXPath")

# Sign the XML...
success = gen.CreateXmlDSigSb(sbXml)
if (success != True):
    print(gen.lastErrorText())
    sys.exit()

# -----------------------------------------------

# Save the signed XML to a file.
success = sbXml.WriteFile("qa_output/signedXml_2.xml","utf-8",False)

print(sbXml.getAsString())

# ----------------------------------------
# Verify the signatures we just produced...
verifier = chilkat.CkXmlDSig()
success = verifier.LoadSignatureSb(sbXml)
if (success != True):
    print(verifier.lastErrorText())
    sys.exit()

numSigs = verifier.get_NumSignatures()
verifyIdx = 0
while verifyIdx < numSigs :
    verifier.put_Selector(verifyIdx)
    verified = verifier.VerifySignature(True)
    if (verified != True):
        print(verifier.lastErrorText())
        sys.exit()

    verifyIdx = verifyIdx + 1

print("All signatures were successfully verified.")