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Node.js

Create AuthNRequest with embedded signature (HTTP-POST binding)

See more XML Digital Signatures Examples

Demonstrates how to create a SAML AuthNRequest with embedded signature (HTTP-POST binding).

Chilkat Node.js Downloads

Node.js
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.

    //  This example will sign the following SAML AuthNRequest:

    //  <samlp:AuthnRequest 
    //       xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol"
    //       xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion"
    //       ID="pfx41d8ef22-e612-8c50-9960-1b16f15741b3"
    //       Version="2.0" ProviderName="SP test" IssueInstant="2014-07-16T23:52:45Z"
    //       Destination="http://idp.example.com/SSOService.php"
    //       ProtocolBinding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST"
    //       AssertionConsumerServiceURL="http://sp.example.com/demo1/index.php?acs">
    //    <saml:Issuer>http://sp.example.com/demo1/metadata.php</saml:Issuer>
    //    <samlp:NameIDPolicy Format="urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress" AllowCreate="true"/>
    //    <samlp:RequestedAuthnContext Comparison="exact">
    //      <saml:AuthnContextClassRef>urn:oasis:names:tc:SAML:2.0:ac:classes:PasswordProtectedTransport</saml:AuthnContextClassRef>
    //    </samlp:RequestedAuthnContext>
    //  </samlp:AuthnRequest>

    //  First we build the XML to be signed.
    //  
    //  Use this online tool to generate the code from sample XML: 
    //  Generate Code to Create XML

    success = true;
    var xmlToSign = new chilkat.Xml();
    xmlToSign.Tag = "samlp:AuthnRequest";
    xmlToSign.AddAttribute("xmlns:samlp","urn:oasis:names:tc:SAML:2.0:protocol");
    xmlToSign.AddAttribute("xmlns:saml","urn:oasis:names:tc:SAML:2.0:assertion");
    xmlToSign.AddAttribute("ID","pfx41d8ef22-e612-8c50-9960-1b16f15741b3");
    xmlToSign.AddAttribute("Version","2.0");
    xmlToSign.AddAttribute("ProviderName","SP test");
    xmlToSign.AddAttribute("IssueInstant","2014-07-16T23:52:45Z");
    xmlToSign.AddAttribute("Destination","http://idp.example.com/SSOService.php");
    xmlToSign.AddAttribute("ProtocolBinding","urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST");
    xmlToSign.AddAttribute("AssertionConsumerServiceURL","http://sp.example.com/demo1/index.php?acs");
    xmlToSign.UpdateChildContent("saml:Issuer","http://sp.example.com/demo1/metadata.php");
    xmlToSign.UpdateAttrAt("samlp:NameIDPolicy",true,"Format","urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress");
    xmlToSign.UpdateAttrAt("samlp:NameIDPolicy",true,"AllowCreate","true");
    xmlToSign.UpdateAttrAt("samlp:RequestedAuthnContext",true,"Comparison","exact");
    xmlToSign.UpdateChildContent("samlp:RequestedAuthnContext|saml:AuthnContextClassRef","urn:oasis:names:tc:SAML:2.0:ac:classes:PasswordProtectedTransport");

    //  Also see the online tool to generate the code from sample already-signed XML: 
    //  Generate XML Signature Creation Code from an Already-Signed XML Sample

    var gen = new chilkat.XmlDSigGen();

    gen.SigLocation = "samlp:AuthnRequest";
    gen.SigNamespacePrefix = "ds";
    gen.SigNamespaceUri = "http://www.w3.org/2000/09/xmldsig#";
    gen.SignedInfoCanonAlg = "EXCL_C14N";
    gen.SignedInfoDigestMethod = "sha1";

    //  -------- Reference 1 --------
    gen.AddSameDocRef("pfx41d8ef22-e612-8c50-9960-1b16f15741b3","sha1","EXCL_C14N","","");

    //  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";
    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);

    //  A sample of the signed XML is shown below..
    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.");

    //  -----------------------------------------
    //  Sample output of AuthNRequest signed XML:
    //  (Line-breaks and some indenting added for readability..)

    //  <?xml version="1.0" encoding="utf-8"?>
    //  <samlp:AuthnRequest 
    //    xmlns:samlp="urn:oasis:names:tc:SAML:2.0:protocol" 
    //    xmlns:saml="urn:oasis:names:tc:SAML:2.0:assertion" 
    //    ID="pfx41d8ef22-e612-8c50-9960-1b16f15741b3" 
    //    Version="2.0" ProviderName="SP test" 
    //    IssueInstant="2014-07-16T23:52:45Z" 
    //    Destination="http://idp.example.com/SSOService.php" 
    //    ProtocolBinding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" 
    //    AssertionConsumerServiceURL="http://sp.example.com/demo1/index.php?acs">
    //      <saml:Issuer>http://sp.example.com/demo1/metadata.php</saml:Issuer>
    //      <samlp:NameIDPolicy Format="urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress" AllowCreate="true"/>
    //      <samlp:RequestedAuthnContext Comparison="exact">
    //          <saml:AuthnContextClassRef>urn:oasis:names:tc:SAML:2.0:ac:classes:PasswordProtectedTransport</saml:AuthnContextClassRef>
    //      </samlp:RequestedAuthnContext>
    //  	<ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
    //  	  <ds:SignedInfo>
    //  	    <ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
    //  	    <ds:SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"/>
    //  	    <ds:Reference URI="#pfx41d8ef22-e612-8c50-9960-1b16f15741b3">
    //  	      <ds:Transforms>
    //  	        <ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/>
    //  	        <ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
    //  	      </ds:Transforms>
    //  	      <ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
    //  	      <ds:DigestValue>5d+/YNShy4qnvZcvik8fHHg2SWQ=</ds:DigestValue>
    //  	    </ds:Reference>
    //  	  </ds:SignedInfo>
    //  	  <ds:SignatureValue>QS16H5...U5LQ==</ds:SignatureValue>
    //  	  <ds:KeyInfo>
    //  	    <ds:X509Data>
    //  	      <ds:X509Certificate>MIIF...tjlF4=</ds:X509Certificate>
    //  	    </ds:X509Data>
    //  	  </ds:KeyInfo>
    //  	</ds:Signature>
    //  </samlp:AuthnRequest>
    //  

}

chilkatExample();