Node.js

SII XML Digital Signature

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Example for SII XML Digital Signature. Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

    success = true;

    // Load the XML to be signed.
    var xmlToSign = new chilkat.Xml();
    success = xmlToSign.LoadXmlFile("c:/aaworkarea/eduardo/sii_unsigned.xml");
    if (success == false) {
        console.log(xmlToSign.LastErrorText);
        return;
    }

    // The sample XML to be signed looks like this:

    // <?xml version="1.0" encoding="ISO-8859-1"?>
    // <EnvioDTE xmlns="http://www.sii.cl/SiiDte" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sii.cl/SiiDte EnvioDTE_v10.xsd" version="1.0">
    // <SetDTE ID="SetDocF0T33_20240425_170512">
    //  <Caratula version="1.0">
    //   <RutEmisor>99999999-4</RutEmisor>
    //   <RutEnvia>12345678-6</RutEnvia>
    //   <RutReceptor>888888000-K</RutReceptor>
    //   <FchResol>2014-08-22</FchResol>
    //   <NroResol>80</NroResol>
    //   <TmstFirmaEnv>2024-04-25T17:05:13</TmstFirmaEnv>
    //   <SubTotDTE>
    //    <TpoDTE>33</TpoDTE>
    //    <NroDTE>1</NroDTE>
    //   </SubTotDTE>
    //  </Caratula>
    // <DTE version="1.0">
    // <Documento ID="F555T55">
    // ...
    // </Documento>
    // </EnvioDTE>

    var gen = new chilkat.XmlDSigGen();

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

    // -------- Reference 1 --------
    var xml1 = new chilkat.Xml();
    xml1.Tag = "Transforms";
    xml1.UpdateAttrAt("Transform",true,"Algorithm","http://www.w3.org/TR/2001/REC-xml-c14n-20010315");

    gen.AddSameDocRef2("F511T33","sha1",xml1,"");

    // Provide a certificate + private key. (PFX password is test123)
    var cert = new chilkat.Cert();
    success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123");
    if (success !== true) {
        console.log(cert.LastErrorText);
        return;
    }

    gen.SetX509Cert(cert,true);

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

    // Load XML to be signed...
    var sbXml = new chilkat.StringBuilder();
    xmlToSign.GetXmlSb(sbXml);

    gen.Behaviors = "IndentedSignature";

    // Sign the XML...
    success = gen.CreateXmlDSigSb(sbXml);
    if (success !== true) {
        console.log(gen.LastErrorText);
        return;
    }

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

    // Save the signed XML to a file.
    success = sbXml.WriteFile("c:/temp/qa_output/signedXml.xml","utf-8",false);

    console.log(sbXml.GetAsString());

    // ----------------------------------------
    // Verify the signatures we just produced...
    var verifier = new chilkat.XmlDSig();
    success = verifier.LoadSignatureSb(sbXml);
    if (success !== true) {
        console.log(verifier.LastErrorText);
        return;
    }

    var numSigs = verifier.NumSignatures;
    var verifyIdx = 0;
    while (verifyIdx < numSigs) {
        verifier.Selector = verifyIdx;
        var verified = verifier.VerifySignature(true);
        if (verified !== true) {
            console.log(verifier.LastErrorText);
            return;
        }

        verifyIdx = verifyIdx+1;
    }

    console.log("All signatures were successfully verified.");

}

chilkatExample();