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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 Zig Downloads
const std = @import("std");
const chilkat = @import("chilkat");
pub fn main(init: std.process.Init) !void {
const alloc = init.arena.allocator();
// 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
const xml_to_sign = try chilkat.Xml.init();
defer xml_to_sign.deinit();
xml_to_sign.setTag("samlp:AuthnRequest");
xml_to_sign.addAttribute("xmlns:samlp", "urn:oasis:names:tc:SAML:2.0:protocol") catch {};
xml_to_sign.addAttribute("xmlns:saml", "urn:oasis:names:tc:SAML:2.0:assertion") catch {};
xml_to_sign.addAttribute("ID", "pfx41d8ef22-e612-8c50-9960-1b16f15741b3") catch {};
xml_to_sign.addAttribute("Version", "2.0") catch {};
xml_to_sign.addAttribute("ProviderName", "SP test") catch {};
xml_to_sign.addAttribute("IssueInstant", "2014-07-16T23:52:45Z") catch {};
xml_to_sign.addAttribute("Destination", "http://idp.example.com/SSOService.php") catch {};
xml_to_sign.addAttribute("ProtocolBinding", "urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST") catch {};
xml_to_sign.addAttribute("AssertionConsumerServiceURL", "http://sp.example.com/demo1/index.php?acs") catch {};
xml_to_sign.updateChildContent("saml:Issuer", "http://sp.example.com/demo1/metadata.php");
xml_to_sign.updateAttrAt("samlp:NameIDPolicy", true, "Format", "urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress") catch {};
xml_to_sign.updateAttrAt("samlp:NameIDPolicy", true, "AllowCreate", "true") catch {};
xml_to_sign.updateAttrAt("samlp:RequestedAuthnContext", true, "Comparison", "exact") catch {};
xml_to_sign.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
const gen = try chilkat.XmlDSigGen.init();
defer gen.deinit();
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", "", "") catch {};
// Provide a certificate + private key. (PFX password is test123)
const cert = try chilkat.Cert.init();
defer cert.deinit();
cert.loadPfxFile("qa_data/pfx/cert_test123.pfx", "test123") catch {
std.debug.print("{s}\n", .{try cert.getLastErrorText(alloc)});
return;
};
gen.setX509Cert(cert, true) catch {};
gen.setKeyInfoType("X509Data");
gen.setX509Type("Certificate");
// Load XML to be signed...
const sb_xml = try chilkat.StringBuilder.init();
defer sb_xml.deinit();
xml_to_sign.getXmlSb(sb_xml) catch {};
gen.setBehaviors("IndentedSignature,ForceAddEnvelopedSignatureTransform");
// Sign the XML...
gen.createXmlDSigSb(sb_xml) catch {
std.debug.print("{s}\n", .{try gen.getLastErrorText(alloc)});
return;
};
// Save the signed XMl to a file.
try sb_xml.writeFile("qa_output/signedXml.xml", "utf-8", false);
// A sample of the signed XML is shown below..
std.debug.print("{s}\n", .{try sb_xml.getAsString(alloc)});
// ----------------------------------------
// Verify the signature we just produced...
const verifier = try chilkat.XmlDSig.init();
defer verifier.deinit();
verifier.loadSignatureSb(sb_xml) catch {
std.debug.print("{s}\n", .{try verifier.getLastErrorText(alloc)});
return;
};
verifier.verifySignature(true) catch {
std.debug.print("{s}\n", .{try verifier.getLastErrorText(alloc)});
return;
};
std.debug.print("This signature was successfully verified.\n", .{});
// -----------------------------------------
// 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>
//
}