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(VB.NET) Create sii.cl Factura Electrónica (Chile Servicio de Impuestos Internos)

Demonstrates how to sign an XML invoice according to Chilean Internal Revenue Service regulations.

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

' See: Apply 2nd Signature to sii.cl Factura Electr�nica (Chile Servicio de Impuestos Internos)
' for an example showing how to apply a 2nd signature.

' We want to sign XML that looks like the following:

' <?xml version="1.0" encoding="iso-8859-1"?>
' <DTE version="1.0" xmlns="http://www.sii.cl/SiiDte">
'     <Documento ID="F13T34">
'         <Encabezado>
'             <IdDoc>
'                 <TipoDTE>34</TipoDTE>
'                 <Folio>13</Folio>
'                 <FchEmis>2020-07-17</FchEmis>
'                 <FmaPago>1</FmaPago>
'                 <FchVenc>2020-07-17</FchVenc>
'             </IdDoc>
'             <Emisor>
'                 <RUTEmisor>...</RUTEmisor>
'                 <RznSoc>...</RznSoc>
'                 <GiroEmis>...</GiroEmis>
'                 <Acteco>...</Acteco>
'                 <DirOrigen>...</DirOrigen>
'                 <CmnaOrigen>...</CmnaOrigen>
'                 <CiudadOrigen>...</CiudadOrigen>
'             </Emisor>
'             <Receptor>
'                 <RUTRecep>...</RUTRecep>
'                 <RznSocRecep>...</RznSocRecep>
'                 <GiroRecep>...</GiroRecep>
'                 <Contacto/>
'                 <DirRecep>...</DirRecep>
'                 <CmnaRecep>...</CmnaRecep>
'                 <CiudadRecep>...</CiudadRecep>
'             </Receptor>
'             <Totales>
'                 <MntExe>14999</MntExe>
'                 <MntTotal>14999</MntTotal>
'             </Totales>
'         </Encabezado>
'         <Detalle>
'             <NroLinDet>1</NroLinDet>
'             <CdgItem>
'                 <TpoCodigo>INT</TpoCodigo>
'                 <VlrCodigo>1</VlrCodigo>
'             </CdgItem>
'             <NmbItem>Atencin profesional mes de Junio 2020</NmbItem>
'             <QtyItem>1</QtyItem>
'             <UnmdItem>UNI</UnmdItem>
'             <PrcItem>14999</PrcItem>
'             <MontoItem>14999</MontoItem>
'         </Detalle>
'         <TED version="1.0">
'             <DD>
'                 <RE>99972220-K</RE>
'                 <TD>34</TD>
'                 <F>13</F>
'                 <FE>2020-07-17</FE>
'                 <RR>99942999-2</RR>
'                 <RSR>...</RSR>
'                 <MNT>14999</MNT>
'                 <IT1>Atencion profesional mes de Junio 2020</IT1>
'                 <CAF version="1.0">
'                     <DA>
'                         <RE>99972220-K</RE>
'                         <RS>...</RS>
'                         <TD>34</TD>
'                         <RNG>
'                             <D>3</D>
'                             <H>12</H>
'                         </RNG>
'                         <FA>2019-10-10</FA>
'                         <RSAPK>
'                             <M>2zHVYpcVNQRvS2yFuqdrh...TEQZx/m0t9HVTgWKZvlc6LSQ==</M>
'                             <E>Aw==</E>
'                         </RSAPK>
'                         <IDK>300</IDK>
'                     </DA>
'                     <FRMA algoritmo="SHA1withRSA">LaVkjISGu...sBtsQL1jR9lw==</FRMA>
'                 </CAF>
'                 <TSTED>2020-07-17T13:19:10</TSTED>
'             </DD>
'             <FRMT algoritmo="SHA1withRSA">LxZr6zmXRZIfTz7...IXS6sp4vfz2fIsA==</FRMT>
'         </TED>
'         <TmstFirma>2020-07-17T13:19:10</TmstFirma>
'     </Documento>
' </DTE>


Dim success As Boolean = True

Dim gen As New Chilkat.XmlDSigGen

gen.SigLocation = "DTE"
gen.SigLocationMod = 0
gen.SigNamespacePrefix = ""
gen.SigNamespaceUri = "http://www.w3.org/2000/09/xmldsig#"
gen.SignedInfoCanonAlg = "C14N"
gen.SignedInfoDigestMethod = "sha1"

' -------- Reference 1 --------
gen.AddSameDocRef("F13T34","sha1","","","")

' Provide a certificate + private key. (PFX password is test123)
Dim cert As New Chilkat.Cert
success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123")
If (success <> True) Then
    Debug.WriteLine(cert.LastErrorText)
    Exit Sub
End If

gen.SetX509Cert(cert,True)

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

' Load XML to be signed...
Dim sbXml As New Chilkat.StringBuilder
success = sbXml.LoadFile("qa_data/xml_dsig/sii_cl/xmlToSign.xml","iso-8859-1")
If (success = False) Then
    Debug.WriteLine("Failed to load XML file.")
    Exit Sub
End If


gen.Behaviors = "IndentedSignature"

' Sign the XML...
success = gen.CreateXmlDSigSb(sbXml)
If (success <> True) Then
    Debug.WriteLine(gen.LastErrorText)
    Exit Sub
End If

' -----------------------------------------------

' Save the signed XML to a file.
success = sbXml.WriteFile("qa_data/xml_dsig/sii_cl/signed1.xml","iso-8859-1",False)

Debug.WriteLine(sbXml.GetAsString())

' ----------------------------------------
' Verify the signatures we just produced...
Dim verifier As New Chilkat.XmlDSig
success = verifier.LoadSignatureSb(sbXml)
If (success <> True) Then
    Debug.WriteLine(verifier.LastErrorText)
    Exit Sub
End If


Dim numSigs As Integer = verifier.NumSignatures
Dim verifyIdx As Integer = 0
While verifyIdx < numSigs
    verifier.Selector = verifyIdx
    Dim verified As Boolean = verifier.VerifySignature(True)
    If (verified <> True) Then
        Debug.WriteLine(verifier.LastErrorText)
        Exit Sub
    End If

    verifyIdx = verifyIdx + 1
End While
Debug.WriteLine("All signatures were successfully verified.")

 

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