Java

SII XML Digital Signature

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Example for SII XML Digital Signature. Java

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

    success = true;

    // Load the XML to be signed.
    CkXml xmlToSign = new CkXml();
    success = xmlToSign.LoadXmlFile("c:/aaworkarea/eduardo/sii_unsigned.xml");
    if (success == false) {
        System.out.println(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>

    CkXmlDSigGen gen = new CkXmlDSigGen();

    gen.put_SigLocation("EnvioDTE|SetDTE|DTE");
    gen.put_SigLocationMod(0);
    gen.put_SigNamespacePrefix("");
    gen.put_SigNamespaceUri("http://www.w3.org/2000/09/xmldsig#");
    gen.put_SignedInfoCanonAlg("C14N");
    gen.put_SignedInfoDigestMethod("sha1");

    // -------- Reference 1 --------
    CkXml xml1 = new CkXml();
    xml1.put_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)
    CkCert cert = new CkCert();
    success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123");
    if (success != true) {
        System.out.println(cert.lastErrorText());
        return;
        }

    gen.SetX509Cert(cert,true);

    gen.put_KeyInfoType("X509Data+KeyValue");
    gen.put_X509Type("Certificate");

    // Load XML to be signed...
    CkStringBuilder sbXml = new CkStringBuilder();
    xmlToSign.GetXmlSb(sbXml);

    gen.put_Behaviors("IndentedSignature");

    // Sign the XML...
    success = gen.CreateXmlDSigSb(sbXml);
    if (success != true) {
        System.out.println(gen.lastErrorText());
        return;
        }

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

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

    System.out.println(sbXml.getAsString());

    // ----------------------------------------
    // Verify the signatures we just produced...
    CkXmlDSig verifier = new CkXmlDSig();
    success = verifier.LoadSignatureSb(sbXml);
    if (success != true) {
        System.out.println(verifier.lastErrorText());
        return;
        }

    int numSigs = verifier.get_NumSignatures();
    int verifyIdx = 0;
    while (verifyIdx < numSigs) {
        verifier.put_Selector(verifyIdx);
        boolean verified = verifier.VerifySignature(true);
        if (verified != true) {
            System.out.println(verifier.lastErrorText());
            return;
            }

        verifyIdx = verifyIdx+1;
        }

    System.out.println("All signatures were successfully verified.");
  }
}