Objective-C

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

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

#import <CkoXmlDSigGen.h>
#import <CkoCert.h>
#import <CkoStringBuilder.h>
#import <CkoXmlDSig.h>

BOOL success = NO;

//  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>Atenci�n 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>

success = YES;

CkoXmlDSigGen *gen = [[CkoXmlDSigGen alloc] init];

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

//  -------- Reference 1 --------
[gen AddSameDocRef: @"F13T34" digestMethod: @"sha1" canonMethod: @"" prefixList: @"" refType: @""];

//  Provide a certificate + private key. (PFX password is test123)
CkoCert *cert = [[CkoCert alloc] init];
success = [cert LoadPfxFile: @"qa_data/pfx/cert_test123.pfx" password: @"test123"];
if (success != YES) {
    NSLog(@"%@",cert.LastErrorText);
    return;
}

[gen SetX509Cert: cert usePrivateKey: YES];

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

//  Load XML to be signed...
CkoStringBuilder *sbXml = [[CkoStringBuilder alloc] init];
success = [sbXml LoadFile: @"qa_data/xml_dsig/sii_cl/xmlToSign.xml" charset: @"iso-8859-1"];
if (success == NO) {
    NSLog(@"%@",@"Failed to load XML file.");
    return;
}

gen.Behaviors = @"IndentedSignature";

//  Sign the XML...
success = [gen CreateXmlDSigSb: sbXml];
if (success != YES) {
    NSLog(@"%@",gen.LastErrorText);
    return;
}

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

//  Save the signed XML to a file.
success = [sbXml WriteFile: @"qa_data/xml_dsig/sii_cl/signed1.xml" charset: @"iso-8859-1" emitBom: NO];

NSLog(@"%@",[sbXml GetAsString]);

//  ----------------------------------------
//  Verify the signatures we just produced...
CkoXmlDSig *verifier = [[CkoXmlDSig alloc] init];
success = [verifier LoadSignatureSb: sbXml];
if (success != YES) {
    NSLog(@"%@",verifier.LastErrorText);
    return;
}

int numSigs = [verifier.NumSignatures intValue];
int verifyIdx = 0;
while (verifyIdx < numSigs) {
    verifier.Selector = [NSNumber numberWithInt: verifyIdx];
    BOOL verified = [verifier VerifySignature: YES];
    if (verified != YES) {
        NSLog(@"%@",verifier.LastErrorText);
        return;
    }

    verifyIdx = verifyIdx + 1;
}

NSLog(@"%@",@"All signatures were successfully verified.");