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(Chilkat2-Python) Sign Bolivia Invoice XML

See more XML Digital Signatures Examples

Demonstrates how to create an XML digital signature (XmlDSig) for a Bolivia invoice (factura).

Chilkat2 Python Downloads

install with pip

pip3 install chilkat2

or download... Python Module for Windows, Linux, Alpine Linux, MacOS, Solaris

import sys
import chilkat2

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

success = True

# Create the following XML to be signed:

# <?xml version="1.0" encoding="UTF-8"?>
# <facturaElectronicaCompraVenta xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="facturaElectronicaCompraVenta.xsd">
#     <cabecera>
#         <nitEmisor>99999999</nitEmisor>
#         <razonSocialEmisor>Abc Xyz</razonSocialEmisor>
#         <municipio>Cochabamba - Cochabamba</municipio>
#         <telefono>4444444</telefono>
#         <numeroFactura>417</numeroFactura>
#         <cuf>ABABABABABABABABABABABABABABABABABABABABABABABABABABABABA</cuf>
#         <cufd>xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx</cufd>
#         <codigoSucursal>0</codigoSucursal>
#         <direccion>aaa aaa aaa</direccion>
#         <codigoPuntoVenta>1</codigoPuntoVenta>
#         <fechaEmision>2023-04-13T22:43:22.417</fechaEmision>
#         <nombreRazonSocial>xyz</nombreRazonSocial>
#         <codigoTipoDocumentoIdentidad>1</codigoTipoDocumentoIdentidad>
#         <numeroDocumento>1234567</numeroDocumento>
#            <complemento xsi:nil="true"/>
#         <codigoCliente>1234567</codigoCliente>
#         <codigoMetodoPago>1</codigoMetodoPago>
#            <numeroTarjeta xsi:nil="true"/>
#         <montoTotal>22.00</montoTotal>
#         <montoTotalSujetoIva>22.00</montoTotalSujetoIva>
#         <codigoMoneda>1</codigoMoneda>
#         <tipoCambio>1.00</tipoCambio>
#         <montoTotalMoneda>22.00</montoTotalMoneda>
#            <montoGiftCard xsi:nil="true"/>
#         <descuentoAdicional>0.00</descuentoAdicional>
#            <codigoExcepcion>1</codigoExcepcion>
#            <cafc xsi:nil="true"/>
#         <leyenda>Ley N 453: El proveedor de servicios debe habilitar medios e instrumentos para efectuar consultas y reclamaciones.</leyenda>
#         <usuario>nromero</usuario>
#         <codigoDocumentoSector>1</codigoDocumentoSector>
#     </cabecera>
#     <detalle>
#         <actividadEconomica>620100</actividadEconomica>
#         <codigoProductoSin>123456</codigoProductoSin>
#         <codigoProducto>1</codigoProducto>
#         <descripcion>Economicos</descripcion>
#         <cantidad>1.00</cantidad>
#         <unidadMedida>58</unidadMedida>
#         <precioUnitario>22.00</precioUnitario>
#         <montoDescuento>0.00</montoDescuento>
#         <subTotal>22.00</subTotal>
#            <numeroSerie xsi:nil="true"/>
#            <numeroImei xsi:nil="true"/>
#     </detalle>
# </facturaElectronicaCompraVenta>

# Use this online tool to generate code from sample XML: 
# Generate Code to Create XML

xml = chilkat2.Xml()
xml.Tag = "facturaElectronicaCompraVenta"
xml.AddAttribute("xmlns:xsi","http://www.w3.org/2001/XMLSchema-instance")
xml.AddAttribute("xsi:noNamespaceSchemaLocation","facturaElectronicaCompraVenta.xsd")
xml.UpdateChildContent("cabecera|nitEmisor","99999999")
xml.UpdateChildContent("cabecera|razonSocialEmisor","Abc Xyz")
xml.UpdateChildContent("cabecera|municipio","Cochabamba - Cochabamba")
xml.UpdateChildContent("cabecera|telefono","4444444")
xml.UpdateChildContent("cabecera|numeroFactura","417")
xml.UpdateChildContent("cabecera|cuf","ABABABABABABABABABABABABABABABABABABABABABABABABABABABABA")
xml.UpdateChildContent("cabecera|cufd","xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx")
xml.UpdateChildContent("cabecera|codigoSucursal","0")
xml.UpdateChildContent("cabecera|direccion","aaa aaa aaa")
xml.UpdateChildContent("cabecera|codigoPuntoVenta","1")
xml.UpdateChildContent("cabecera|fechaEmision","2023-04-13T22:43:22.417")
xml.UpdateChildContent("cabecera|nombreRazonSocial","xyz")
xml.UpdateChildContent("cabecera|codigoTipoDocumentoIdentidad","1")
xml.UpdateChildContent("cabecera|numeroDocumento","1234567")
xml.UpdateAttrAt("cabecera|complemento",True,"xsi:nil","true")
xml.UpdateChildContent("cabecera|codigoCliente","1234567")
xml.UpdateChildContent("cabecera|codigoMetodoPago","1")
xml.UpdateAttrAt("cabecera|numeroTarjeta",True,"xsi:nil","true")
xml.UpdateChildContent("cabecera|montoTotal","22.00")
xml.UpdateChildContent("cabecera|montoTotalSujetoIva","22.00")
xml.UpdateChildContent("cabecera|codigoMoneda","1")
xml.UpdateChildContent("cabecera|tipoCambio","1.00")
xml.UpdateChildContent("cabecera|montoTotalMoneda","22.00")
xml.UpdateAttrAt("cabecera|montoGiftCard",True,"xsi:nil","true")
xml.UpdateChildContent("cabecera|descuentoAdicional","0.00")
xml.UpdateChildContent("cabecera|codigoExcepcion","1")
xml.UpdateAttrAt("cabecera|cafc",True,"xsi:nil","true")
xml.UpdateChildContent("cabecera|leyenda","Ley N 453: El proveedor de servicios debe habilitar medios e instrumentos para efectuar consultas y reclamaciones.")
xml.UpdateChildContent("cabecera|usuario","nromero")
xml.UpdateChildContent("cabecera|codigoDocumentoSector","1")
xml.UpdateChildContent("detalle|actividadEconomica","620100")
xml.UpdateChildContent("detalle|codigoProductoSin","123456")
xml.UpdateChildContent("detalle|codigoProducto","1")
xml.UpdateChildContent("detalle|descripcion","Economicos")
xml.UpdateChildContent("detalle|cantidad","1.00")
xml.UpdateChildContent("detalle|unidadMedida","58")
xml.UpdateChildContent("detalle|precioUnitario","22.00")
xml.UpdateChildContent("detalle|montoDescuento","0.00")
xml.UpdateChildContent("detalle|subTotal","22.00")
xml.UpdateAttrAt("detalle|numeroSerie",True,"xsi:nil","true")
xml.UpdateAttrAt("detalle|numeroImei",True,"xsi:nil","true")

gen = chilkat2.XmlDSigGen()

gen.SigLocation = "facturaElectronicaCompraVenta"
gen.SigLocationMod = 0
gen.SigNamespacePrefix = ""
gen.SigNamespaceUri = "http://www.w3.org/2000/09/xmldsig#"
gen.SignedInfoCanonAlg = "C14N"
gen.SignedInfoDigestMethod = "sha256"

gen.AddSameDocRef("","sha256","C14N_WithComments","","")

# Provide your certificate + private key. (PFX password is test123)
cert = chilkat2.Cert()
success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123")
if (success != True):
    print(cert.LastErrorText)
    sys.exit()

gen.SetX509Cert(cert,True)

gen.KeyInfoType = "X509Data"
gen.X509Type = "Certificate"

gen.Behaviors = "EnvelopedTransformFirst"

# Load XML to be signed...
sbXml = chilkat2.StringBuilder()
xml.EmitCompact = True
xml.GetXmlSb(sbXml)

# 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.xml","utf-8",True)

print(sbXml.GetAsString())

# ----------------------------------------
# Verify the signatures we just produced...
verifier = chilkat2.XmlDSig()
success = verifier.LoadSignatureSb(sbXml)
if (success != True):
    print(verifier.LastErrorText)
    sys.exit()

numSigs = verifier.NumSignatures
verifyIdx = 0
while verifyIdx < numSigs :
    verifier.Selector = verifyIdx
    verified = verifier.VerifySignature(True)
    if (verified != True):
        print(verifier.LastErrorText)
        sys.exit()

    verifyIdx = verifyIdx + 1

print("All signatures were successfully verified.")

 

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