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(C) Create AuthNRequest with embedded signature (HTTP-POST binding)Demonstrates how to create a SAML AuthNRequest with embedded signature (HTTP-POST binding).
#include <C_CkXml.h> #include <C_CkXmlDSigGen.h> #include <C_CkCert.h> #include <C_CkStringBuilder.h> #include <C_CkXmlDSig.h> void ChilkatSample(void) { BOOL success; HCkXml xmlToSign; HCkXmlDSigGen gen; HCkCert cert; HCkStringBuilder sbXml; HCkXmlDSig verifier; BOOL verified; // 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 = CkXml_Create(); CkXml_putTag(xmlToSign,"samlp:AuthnRequest"); CkXml_AddAttribute(xmlToSign,"xmlns:samlp","urn:oasis:names:tc:SAML:2.0:protocol"); CkXml_AddAttribute(xmlToSign,"xmlns:saml","urn:oasis:names:tc:SAML:2.0:assertion"); CkXml_AddAttribute(xmlToSign,"ID","pfx41d8ef22-e612-8c50-9960-1b16f15741b3"); CkXml_AddAttribute(xmlToSign,"Version","2.0"); CkXml_AddAttribute(xmlToSign,"ProviderName","SP test"); CkXml_AddAttribute(xmlToSign,"IssueInstant","2014-07-16T23:52:45Z"); CkXml_AddAttribute(xmlToSign,"Destination","http://idp.example.com/SSOService.php"); CkXml_AddAttribute(xmlToSign,"ProtocolBinding","urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST"); CkXml_AddAttribute(xmlToSign,"AssertionConsumerServiceURL","http://sp.example.com/demo1/index.php?acs"); CkXml_UpdateChildContent(xmlToSign,"saml:Issuer","http://sp.example.com/demo1/metadata.php"); CkXml_UpdateAttrAt(xmlToSign,"samlp:NameIDPolicy",TRUE,"Format","urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress"); CkXml_UpdateAttrAt(xmlToSign,"samlp:NameIDPolicy",TRUE,"AllowCreate","true"); CkXml_UpdateAttrAt(xmlToSign,"samlp:RequestedAuthnContext",TRUE,"Comparison","exact"); CkXml_UpdateChildContent(xmlToSign,"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 = CkXmlDSigGen_Create(); CkXmlDSigGen_putSigLocation(gen,"samlp:AuthnRequest"); CkXmlDSigGen_putSigNamespacePrefix(gen,"ds"); CkXmlDSigGen_putSigNamespaceUri(gen,"http://www.w3.org/2000/09/xmldsig#"); CkXmlDSigGen_putSignedInfoCanonAlg(gen,"EXCL_C14N"); CkXmlDSigGen_putSignedInfoDigestMethod(gen,"sha1"); // -------- Reference 1 -------- CkXmlDSigGen_AddSameDocRef(gen,"pfx41d8ef22-e612-8c50-9960-1b16f15741b3","sha1","EXCL_C14N","",""); // Provide a certificate + private key. (PFX password is test123) cert = CkCert_Create(); success = CkCert_LoadPfxFile(cert,"qa_data/pfx/cert_test123.pfx","test123"); if (success != TRUE) { printf("%s\n",CkCert_lastErrorText(cert)); CkXml_Dispose(xmlToSign); CkXmlDSigGen_Dispose(gen); CkCert_Dispose(cert); return; } CkXmlDSigGen_SetX509Cert(gen,cert,TRUE); CkXmlDSigGen_putKeyInfoType(gen,"X509Data"); CkXmlDSigGen_putX509Type(gen,"Certificate"); // Load XML to be signed... sbXml = CkStringBuilder_Create(); CkXml_GetXmlSb(xmlToSign,sbXml); CkXmlDSigGen_putBehaviors(gen,"IndentedSignature,ForceAddEnvelopedSignatureTransform"); // Sign the XML... success = CkXmlDSigGen_CreateXmlDSigSb(gen,sbXml); if (success != TRUE) { printf("%s\n",CkXmlDSigGen_lastErrorText(gen)); CkXml_Dispose(xmlToSign); CkXmlDSigGen_Dispose(gen); CkCert_Dispose(cert); CkStringBuilder_Dispose(sbXml); return; } // Save the signed XMl to a file. success = CkStringBuilder_WriteFile(sbXml,"qa_output/signedXml.xml","utf-8",FALSE); // A sample of the signed XML is shown below.. printf("%s\n",CkStringBuilder_getAsString(sbXml)); // ---------------------------------------- // Verify the signature we just produced... verifier = CkXmlDSig_Create(); success = CkXmlDSig_LoadSignatureSb(verifier,sbXml); if (success != TRUE) { printf("%s\n",CkXmlDSig_lastErrorText(verifier)); CkXml_Dispose(xmlToSign); CkXmlDSigGen_Dispose(gen); CkCert_Dispose(cert); CkStringBuilder_Dispose(sbXml); CkXmlDSig_Dispose(verifier); return; } verified = CkXmlDSig_VerifySignature(verifier,TRUE); if (verified != TRUE) { printf("%s\n",CkXmlDSig_lastErrorText(verifier)); CkXml_Dispose(xmlToSign); CkXmlDSigGen_Dispose(gen); CkCert_Dispose(cert); CkStringBuilder_Dispose(sbXml); CkXmlDSig_Dispose(verifier); return; } printf("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> // CkXml_Dispose(xmlToSign); CkXmlDSigGen_Dispose(gen); CkCert_Dispose(cert); CkStringBuilder_Dispose(sbXml); CkXmlDSig_Dispose(verifier); } |
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