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Java

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 Java Downloads

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;

    //  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;
    CkXml xmlToSign = new CkXml();
    xmlToSign.put_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

    CkXmlDSigGen gen = new CkXmlDSigGen();

    gen.put_SigLocation("samlp:AuthnRequest");
    gen.put_SigNamespacePrefix("ds");
    gen.put_SigNamespaceUri("http://www.w3.org/2000/09/xmldsig#");
    gen.put_SignedInfoCanonAlg("EXCL_C14N");
    gen.put_SignedInfoDigestMethod("sha1");

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

    //  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");
    gen.put_X509Type("Certificate");

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

    gen.put_Behaviors("IndentedSignature,ForceAddEnvelopedSignatureTransform");

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

    //  A sample of the signed XML is shown below..
    System.out.println(sbXml.getAsString());

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

    boolean verified = verifier.VerifySignature(true);
    if (verified != true) {
        System.out.println(verifier.lastErrorText());
        return;
        }

    System.out.println("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>
    //
  }
}