Android™
Android™
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 Android™ Downloads
// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;
import android.app.Activity;
import com.chilkatsoft.*;
import android.widget.TextView;
import android.os.Bundle;
public class SimpleActivity extends Activity {
private static final String TAG = "Chilkat";
// Called when the activity is first created.
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
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) {
Log.i(TAG, 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) {
Log.i(TAG, 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..
Log.i(TAG, sbXml.getAsString());
// ----------------------------------------
// Verify the signature we just produced...
CkXmlDSig verifier = new CkXmlDSig();
success = verifier.LoadSignatureSb(sbXml);
if (success != true) {
Log.i(TAG, verifier.lastErrorText());
return;
}
boolean verified = verifier.VerifySignature(true);
if (verified != true) {
Log.i(TAG, verifier.lastErrorText());
return;
}
Log.i(TAG, "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>
//
}
static {
System.loadLibrary("chilkat");
// Note: If the incorrect library name is passed to System.loadLibrary,
// then you will see the following error message at application startup:
//"The application <your-application-name> has stopped unexpectedly. Please try again."
}
}