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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 Go Downloads
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
xmlToSign := chilkat.NewXml()
xmlToSign.SetTag("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
gen := chilkat.NewXmlDSigGen()
gen.SetSigLocation("samlp:AuthnRequest")
gen.SetSigNamespacePrefix("ds")
gen.SetSigNamespaceUri("http://www.w3.org/2000/09/xmldsig#")
gen.SetSignedInfoCanonAlg("EXCL_C14N")
gen.SetSignedInfoDigestMethod("sha1")
// -------- Reference 1 --------
gen.AddSameDocRef("pfx41d8ef22-e612-8c50-9960-1b16f15741b3","sha1","EXCL_C14N","","")
// Provide a certificate + private key. (PFX password is test123)
cert := chilkat.NewCert()
success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123")
if success != true {
fmt.Println(cert.LastErrorText())
xmlToSign.DisposeXml()
gen.DisposeXmlDSigGen()
cert.DisposeCert()
return
}
gen.SetX509Cert(cert,true)
gen.SetKeyInfoType("X509Data")
gen.SetX509Type("Certificate")
// Load XML to be signed...
sbXml := chilkat.NewStringBuilder()
xmlToSign.GetXmlSb(sbXml)
gen.SetBehaviors("IndentedSignature,ForceAddEnvelopedSignatureTransform")
// Sign the XML...
success = gen.CreateXmlDSigSb(sbXml)
if success != true {
fmt.Println(gen.LastErrorText())
xmlToSign.DisposeXml()
gen.DisposeXmlDSigGen()
cert.DisposeCert()
sbXml.DisposeStringBuilder()
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..
fmt.Println(*sbXml.GetAsString())
// ----------------------------------------
// Verify the signature we just produced...
verifier := chilkat.NewXmlDSig()
success = verifier.LoadSignatureSb(sbXml)
if success != true {
fmt.Println(verifier.LastErrorText())
xmlToSign.DisposeXml()
gen.DisposeXmlDSigGen()
cert.DisposeCert()
sbXml.DisposeStringBuilder()
verifier.DisposeXmlDSig()
return
}
verified := verifier.VerifySignature(true)
if verified != true {
fmt.Println(verifier.LastErrorText())
xmlToSign.DisposeXml()
gen.DisposeXmlDSigGen()
cert.DisposeCert()
sbXml.DisposeStringBuilder()
verifier.DisposeXmlDSig()
return
}
fmt.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>
//
xmlToSign.DisposeXml()
gen.DisposeXmlDSigGen()
cert.DisposeCert()
sbXml.DisposeStringBuilder()
verifier.DisposeXmlDSig()