Dart
Dart
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 Dart Downloads
import 'package:chilkat/chilkat.dart';
void main() {
// 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
final xmlToSign = CkXml();
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
final gen = CkXmlDSigGen();
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)
final cert = CkCert();
try {
cert.loadPfxFile('qa_data/pfx/cert_test123.pfx', 'test123');
} on ChilkatException catch (e) {
print(e.lastErrorText);
return;
}
gen.setX509Cert(cert, true);
gen.keyInfoType = 'X509Data';
gen.x509Type = 'Certificate';
// Load XML to be signed...
final sbXml = CkStringBuilder();
xmlToSign.getXmlSb(sbXml);
gen.behaviors = 'IndentedSignature,ForceAddEnvelopedSignatureTransform';
// Sign the XML...
try {
gen.createXmlDSigSb(sbXml);
} on ChilkatException catch (e) {
print(e.lastErrorText);
return;
}
// Save the signed XMl to a file.
sbXml.writeFile('qa_output/signedXml.xml', 'utf-8', false);
// A sample of the signed XML is shown below..
print(sbXml.getAsString());
// ----------------------------------------
// Verify the signature we just produced...
final verifier = CkXmlDSig();
try {
verifier.loadSignatureSb(sbXml);
} on ChilkatException catch (e) {
print(e.lastErrorText);
return;
}
try {
verifier.verifySignature(true);
} on ChilkatException catch (e) {
print(e.lastErrorText);
return;
}
print('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>
//
}