Node.js
Node.js
XML-DSig Add Reference with Transforms Specified Explicitly
Demonstrates how to use the new AddSameDocRef2 method to explicitly specify the XML Transforms fragment.Chilkat Node.js Downloads
NODEJS_PRELUDE
function chilkatExample() {
var success = false;
// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.
success = true;
// Create the following XML to be signed:
// <doc>
// <s id="s1">Some text...</s>
// <p>Some text...</p>
// <p class="note">A note...</p>
// </doc>
// Use this online tool to generate code from sample XML:
// Generate Code to Create XML
var xmlToSign = new chilkat.Xml();
xmlToSign.Tag = "doc";
xmlToSign.UpdateAttrAt("s",true,"id","s1");
xmlToSign.UpdateChildContent("s","Some text...");
xmlToSign.UpdateChildContent("p","Some text...");
xmlToSign.UpdateAttrAt("p[1]",true,"class","note");
xmlToSign.UpdateChildContent("p[1]","A note...");
console.log(xmlToSign.GetXml());
var gen = new chilkat.XmlDSigGen();
gen.SigLocation = "doc";
gen.SigLocationMod = 0;
gen.SigId = "Signature-78f29839-06af-448f-b479-ca46457fab1b-Signature";
gen.SigNamespacePrefix = "ds";
gen.SigNamespaceUri = "http://www.w3.org/2000/09/xmldsig#";
gen.SigValueId = "Signature-78f29839-06af-448f-b479-ca46457fab1b-SignatureValue";
gen.SignedInfoCanonAlg = "C14N";
gen.SignedInfoDigestMethod = "sha1";
// Set the KeyInfoId before adding references..
gen.KeyInfoId = "Signature-78f29839-06af-448f-b479-ca46457fab1b-KeyInfo";
// The following XML to be added as an Object to the Signature
// Use this online tool to generate code from sample XML:
// Generate Code to Create XML
// <xades:QualifyingProperties Id="Signature-78f29839-06af-448f-b479-ca46457fab1b-QualifyingProperties" Target="#Signature-78f29839-06af-448f-b479-ca46457fab1b-Signature" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:xades="http://uri.etsi.org/01903/v1.3.2#">
// <xades:SignedProperties Id="Signature-78f29839-06af-448f-b479-ca46457fab1b-SignedProperties">
// <xades:SignedSignatureProperties>
// <xades:SigningTime>TO BE GENERATED BY CHILKAT</xades:SigningTime>
// <xades:SigningCertificate>
// <xades:Cert>
// <xades:CertDigest>
// <ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
// <ds:DigestValue>TO BE GENERATED BY CHILKAT</ds:DigestValue>
// </xades:CertDigest>
// <xades:IssuerSerial>
// <ds:X509IssuerName>TO BE GENERATED BY CHILKAT</ds:X509IssuerName>
// <ds:X509SerialNumber>TO BE GENERATED BY CHILKAT</ds:X509SerialNumber>
// </xades:IssuerSerial>
// </xades:Cert>
// </xades:SigningCertificate>
// </xades:SignedSignatureProperties>
// <xades:SignedDataObjectProperties>
// <xades:DataObjectFormat ObjectReference="#Reference-24eb6003-d41c-442c-a731-d4c58f94790b">
// <xades:Description/>
// <xades:ObjectIdentifier>
// <xades:Identifier Qualifier="OIDAsURN">urn:oid:1.2.840.10003.5.109.10</xades:Identifier>
// <xades:Description/>
// </xades:ObjectIdentifier>
// <xades:MimeType>text/xml</xades:MimeType>
// <xades:Encoding/>
// </xades:DataObjectFormat>
// </xades:SignedDataObjectProperties>
// </xades:SignedProperties>
// </xades:QualifyingProperties>
var object1 = new chilkat.Xml();
object1.Tag = "xades:QualifyingProperties";
object1.AddAttribute("Id","Signature-78f29839-06af-448f-b479-ca46457fab1b-QualifyingProperties");
object1.AddAttribute("Target","#Signature-78f29839-06af-448f-b479-ca46457fab1b-Signature");
object1.AddAttribute("xmlns:ds","http://www.w3.org/2000/09/xmldsig#");
object1.AddAttribute("xmlns:xades","http://uri.etsi.org/01903/v1.3.2#");
object1.UpdateAttrAt("xades:SignedProperties",true,"Id","Signature-78f29839-06af-448f-b479-ca46457fab1b-SignedProperties");
object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningTime","TO BE GENERATED BY CHILKAT");
// Note: It may be that http://www.w3.org/2001/04/xmlenc#sha256 is needed in the following line instead of http://www.w3.org/2000/09/xmldsig#sha1
object1.UpdateAttrAt("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestMethod",true,"Algorithm","http://www.w3.org/2000/09/xmldsig#sha1");
object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestValue","TO BE GENERATED BY CHILKAT");
object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:IssuerSerialV2","TO BE GENERATED BY CHILKAT");
object1.UpdateAttrAt("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat",true,"ObjectReference","#Reference-24eb6003-d41c-442c-a731-d4c58f94790b");
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Description","");
object1.UpdateAttrAt("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Identifier",true,"Qualifier","OIDAsURN");
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Identifier","urn:oid:1.2.840.10003.5.109.10");
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Description","");
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:MimeType","text/xml");
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Encoding","");
console.log(object1.GetXml());
gen.AddObject("",object1.GetXml(),"","");
// -------- Reference 1 --------
// Create the following Transforms fragment:
// Use this online tool to generate code from sample XML:
// Generate Code to Create XML
// <ds:Transforms>
// <ds:Transform Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/>
// <ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/>
// <ds:Transform Algorithm="http://www.w3.org/TR/1999/REC-xpath-19991116">
// <ds:XPath xmlns:ds="http://www.w3.org/2000/09/xmldsig#">not(ancestor-or-self::ds:Signature)</ds:XPath>
// </ds:Transform>
// </ds:Transforms>
var xml1 = new chilkat.Xml();
xml1.Tag = "ds:Transforms";
xml1.UpdateAttrAt("ds:Transform",true,"Algorithm","http://www.w3.org/TR/2001/REC-xml-c14n-20010315");
xml1.UpdateAttrAt("ds:Transform[1]",true,"Algorithm","http://www.w3.org/2000/09/xmldsig#enveloped-signature");
xml1.UpdateAttrAt("ds:Transform[2]",true,"Algorithm","http://www.w3.org/TR/1999/REC-xpath-19991116");
xml1.UpdateAttrAt("ds:Transform[2]|ds:XPath",true,"xmlns:ds","http://www.w3.org/2000/09/xmldsig#");
xml1.UpdateChildContent("ds:Transform[2]|ds:XPath","not(ancestor-or-self::ds:Signature)");
// This is the "Transforms" XML fragment passed to AddSameDocRef2.
console.log(xml1.GetXml());
gen.AddSameDocRef2("","sha1",xml1,"");
gen.SetRefIdAttr("","Reference-24eb6003-d41c-442c-a731-d4c58f94790b");
// -------- Reference 2 --------
gen.AddObjectRef("Signature-78f29839-06af-448f-b479-ca46457fab1b-SignedProperties","sha1","","","http://uri.etsi.org/01903#SignedProperties");
// -------- Reference 3 --------
gen.AddSameDocRef("Signature-78f29839-06af-448f-b479-ca46457fab1b-KeyInfo","sha1","","","");
// 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 = "CertChain";
// 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("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();