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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.

Chilkat Objective-C Downloads

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.");