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(Node.js) Create XAdES using Smart Card or USB Token

Demonstrates how to create an XAdES signed XML document using a certificate located on a smartcard or USB token.

Note: This example requires Chilkat v9.5.0.75 or greater. Also, at the time of this writing this example is restricted to the Windows operating system.

Install Chilkat for Node.js and Electron using npm at

Chilkat npm packages for Node.js

Chilkat npm packages for Electron

on Windows, Linux, MacOSX, and ARM

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node21-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node21-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node21-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node21-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node21-linux64');
    }
} else if (os.platform() == 'darwin') {
    if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node21-mac-m1');
    } else {
        var chilkat = require('@chilkat/ck-node21-macosx');
    }
}

function chilkatExample() {

    // ----------------------------------------------------------------------
    // IMPORTANT: This generated example requires Chilkat v9.5.0.75 or later.
    // Contact support@chilkatsoft.com for a pre-release.
    // ----------------------------------------------------------------------

    // Load the XML to be signed.
    var xmlToSign = new chilkat.Xml();
    var success = xmlToSign.LoadXmlFile("qa_data/fattura_electronica/docToSign.xml");
    if (success !== true) {
        console.log(xmlToSign.LastErrorText);
        return;
    }

    var gen = new chilkat.XmlDSigGen();

    gen.SigLocation = "p:FatturaElettronica";
    gen.SigId = "xmldsig-6f4b994a-7191-4bb1-ab3c-17549515b504";
    gen.SigNamespacePrefix = "ds";
    gen.SigNamespaceUri = "http://www.w3.org/2000/09/xmldsig#";
    gen.SigValueId = "xmldsig-6f4b994a-7191-4bb1-ab3c-17549515b504-sigvalue";
    gen.SignedInfoCanonAlg = "C14N";
    gen.SignedInfoDigestMethod = "sha256";

    // Create an Object to be added to the Signature.
    // Note: Chilkat will automatically populate the strings indicated by "TO BE GENERATED BY CHILKAT" with actual/correct values
    // when the XML is signed.
    var object1 = new chilkat.Xml();
    object1.Tag = "xades:QualifyingProperties";
    object1.AddAttribute("xmlns:xades","http://uri.etsi.org/01903/v1.3.2#");
    object1.AddAttribute("xmlns:xades141","http://uri.etsi.org/01903/v1.4.1#");
    object1.AddAttribute("Target","#xmldsig-6f4b994a-7191-4bb1-ab3c-17549515b504");
    object1.UpdateAttrAt("xades:SignedProperties",true,"Id","xmldsig-6f4b994a-7191-4bb1-ab3c-17549515b504-signedprops");
    object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningTime","TO BE GENERATED BY CHILKAT");
    object1.UpdateAttrAt("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:CertDigest|ds:DigestMethod",true,"Algorithm","http://www.w3.org/2001/04/xmlenc#sha256");
    object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:CertDigest|ds:DigestValue","TO BE GENERATED BY CHILKAT");
    object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:IssuerSerial|ds:X509IssuerName","TO BE GENERATED BY CHILKAT");
    object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:IssuerSerial|ds:X509SerialNumber","TO BE GENERATED BY CHILKAT");

    gen.AddObject("",object1.GetXml(),"","");

    // -------- Reference 1 --------
    gen.KeyInfoId = "xmldsig-6f4b994a-7191-4bb1-ab3c-17549515b504-keyinfo";
    gen.AddSameDocRef("xmldsig-6f4b994a-7191-4bb1-ab3c-17549515b504-keyinfo","sha256","","","");

    // -------- Reference 2 --------
    gen.AddSameDocRef("","sha256","","","");
    gen.SetRefIdAttr("","xmldsig-6f4b994a-7191-4bb1-ab3c-17549515b504-ref0");

    // -------- Reference 3 --------
    gen.AddObjectRef("xmldsig-6f4b994a-7191-4bb1-ab3c-17549515b504-signedprops","sha256","","","http://uri.etsi.org/01903#SignedProperties");

    // ----------------------------------------------------------------
    //  Load a certificate that has been pre-installed on the Windows system
    //  This includes certificates on smartcards and USB tokens
    var cert = new chilkat.Cert();

    //  You may provide the PIN here..
    cert.SmartCardPin = "000000";

    // Load the certificate on the smartcard currently in the reader (or on the USB token).
    // Pass an empty string to allow Chilkat to automatically choose the CSP (Cryptographi Service Provider).
    // See Load Certificate on Smartcard for information about explicitly selecting a particular CSP.
    success = cert.LoadFromSmartcard("");
    if (success !== true) {
        console.log(cert.LastErrorText);
        return;
    }

    gen.SetX509Cert(cert,true);
    gen.KeyInfoType = "X509Data";
    gen.X509Type = "Certificate";

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

    gen.Behaviors = "IndentedSignature,ForceAddEnvelopedSignatureTransform";

    // 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("qa_output/signedXml.xml","utf-8",false);

    console.log(sbXml.GetAsString());

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

    var verified = verifier.VerifySignature(true);
    if (verified !== true) {
        console.log(verifier.LastErrorText);
        return;
    }

    console.log("This signature was successfully verified.");

}

chilkatExample();

 

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