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(C#) Create IRS MeF Login Service Request MessageThis example demonstrates how to create a digitally signed Login Service Request Message. This example used the documentation at https://www.irs.gov/pub/irs-utl/mef-doc-stp_ref_guide.pdf as a guide. It creates signed XML as specified in section 4.1.1 found in Section 4: Example A2A Web Service Messages.
// This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // -------------------------------------------------------------------------------- // Also see Chilkat's Online WSDL Code Generator // to generate code and SOAP Request and Response XML for each operation in a WSDL. // -------------------------------------------------------------------------------- // The goal of this example is to create signed SOAP XML such as the following: // <?xml version="1.0" encoding="UTF-8"?> // <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> // <SOAP-ENV:Header> // <wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"> // <wsse:BinarySecurityToken // xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" // EncodingType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary" // ValueType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3" // wsu:Id="CertId-1673181727">MIIHab...n71P</wsse:BinarySecurityToken> // <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/2001/04/xmldsig-more#rsa-sha256"/> // <ds:Reference URI="#id-1214941501"> // <ds:Transforms> // <ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/> // </ds:Transforms> // <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/> // <ds:DigestValue>abcdefghijkLMNOPQRSTUVwxyz012345Em0o3VEOTck=</ds:DigestValue> // </ds:Reference> // <ds:Reference URI="#id-1871558655"> // <ds:Transforms> // <ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/> // </ds:Transforms> // <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/> // <ds:DigestValue>abcdefghijkLMNOPQRSTUVwxyz012345Xm5ViA+royg=</ds:DigestValue> // </ds:Reference> // </ds:SignedInfo> // <ds:SignatureValue>abcd...5Nbw==</ds:SignatureValue> // <ds:KeyInfo Id="KeyId-256137097"> // <wsse:SecurityTokenReference xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" wsu:Id="STRId-1862925355"> // <wsse:Reference URI="#CertId-1673181727" ValueType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3"/> // </wsse:SecurityTokenReference> // </ds:KeyInfo> // </ds:Signature> // </wsse:Security> // <ns1:MeFHeader xmlns:ns1="http://www.irs.gov/a2a/mef/MeFHeader.xsd" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" wsu:Id="id-1214941501"> // <ns1:MessageID>12345202018200000234</ns1:MessageID> // <ns1:Action>Login</ns1:Action> // <ns1:MessageTs>2020-06-30T15:25:42.678Z</ns1:MessageTs> // <ns1:ETIN>12345</ns1:ETIN> // <ns1:SessionKeyCd>Y</ns1:SessionKeyCd> // <ns1:TestCd>P</ns1:TestCd> // <ns1:AppSysID>65432190</ns1:AppSysID> // <ns1:WSDLVersionNum>10.3</ns1:WSDLVersionNum> // <ns1:ClientSoftwareTxt>SOATest</ns1:ClientSoftwareTxt> // </ns1:MeFHeader> // </SOAP-ENV:Header> // <SOAP-ENV:Body xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" wsu:Id="id-1871558655"> // <LoginRequest xmlns="http://www.irs.gov/a2a/mef/MeFMSIServices.xsd"/> // </SOAP-ENV:Body> // </SOAP-ENV:Envelope> // ------------------------------------------------------------------------------------------- // First, let's load the certificate + private key to be used for signing (from a PFX). // (It is also possible to use certificates installed on a Windows system, or from other file formats..) Chilkat.Pfx pfx = new Chilkat.Pfx(); bool success = pfx.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123"); if (success != true) { Debug.WriteLine(pfx.LastErrorText); return; } // We'll be needing the X.509 signing cert as base64 for the BinarySecurityToken, so let's get it now.. // The certificate having the private key should be the 1st in the PFX. Chilkat.Cert signingCert = pfx.GetCert(0); if (pfx.LastMethodSuccess != true) { Debug.WriteLine(pfx.LastErrorText); return; } Chilkat.BinData bdCert = new Chilkat.BinData(); signingCert.ExportCertDerBd(bdCert); Chilkat.StringBuilder sbCert64 = new Chilkat.StringBuilder(); bdCert.GetEncodedSb("base64",sbCert64); // ------------------------------------------------------------------------------------------- // The XML before signing would look like this: // <?xml version="1.0" encoding="UTF-8"?> // <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> // <SOAP-ENV:Header> // <wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"> // <wsse:BinarySecurityToken // xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" // EncodingType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary" // ValueType="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3" // wsu:Id="CertId-1673181727">MIIHab...n71P</wsse:BinarySecurityToken> // </wsse:Security> // <ns1:MeFHeader xmlns:ns1="http://www.irs.gov/a2a/mef/MeFHeader.xsd" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" wsu:Id="id-1214941501"> // <ns1:MessageID>12345202018200000234</ns1:MessageID> // <ns1:Action>Login</ns1:Action> // <ns1:MessageTs>2020-06-30T15:25:42.678Z</ns1:MessageTs> // <ns1:ETIN>12345</ns1:ETIN> // <ns1:SessionKeyCd>Y</ns1:SessionKeyCd> // <ns1:TestCd>P</ns1:TestCd> // <ns1:AppSysID>65432190</ns1:AppSysID> // <ns1:WSDLVersionNum>10.3</ns1:WSDLVersionNum> // <ns1:ClientSoftwareTxt>SOATest</ns1:ClientSoftwareTxt> // </ns1:MeFHeader> // </SOAP-ENV:Header> // <SOAP-ENV:Body xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" wsu:Id="id-1871558655"> // <LoginRequest xmlns="http://www.irs.gov/a2a/mef/MeFMSIServices.xsd"/> // </SOAP-ENV:Body> // </SOAP-ENV:Envelope> // You can use the online XML code generation tool at http://tools.chilkat.io/xmlCreate.cshtml // to generate the following XML creation source code: // Create the XML to be signed... Chilkat.Xml xmlToSign = new Chilkat.Xml(); xmlToSign.Tag = "SOAP-ENV:Envelope"; xmlToSign.AddAttribute("xmlns:SOAP-ENV","http://schemas.xmlsoap.org/soap/envelope/"); xmlToSign.AddAttribute("xmlns:xsd","http://www.w3.org/2001/XMLSchema"); xmlToSign.AddAttribute("xmlns:xsi","http://www.w3.org/2001/XMLSchema-instance"); xmlToSign.UpdateAttrAt("SOAP-ENV:Header|wsse:Security",true,"xmlns:wsse","http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"); xmlToSign.UpdateAttrAt("SOAP-ENV:Header|wsse:Security|wsse:BinarySecurityToken",true,"xmlns:wsu","http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd"); xmlToSign.UpdateAttrAt("SOAP-ENV:Header|wsse:Security|wsse:BinarySecurityToken",true,"EncodingType","http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary"); xmlToSign.UpdateAttrAt("SOAP-ENV:Header|wsse:Security|wsse:BinarySecurityToken",true,"ValueType","http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3"); xmlToSign.UpdateAttrAt("SOAP-ENV:Header|wsse:Security|wsse:BinarySecurityToken",true,"wsu:Id","CertId-1673181727"); xmlToSign.UpdateChildContent("SOAP-ENV:Header|wsse:Security|wsse:BinarySecurityToken",sbCert64.GetAsString()); xmlToSign.UpdateAttrAt("SOAP-ENV:Header|ns1:MeFHeader",true,"xmlns:ns1","http://www.irs.gov/a2a/mef/MeFHeader.xsd"); xmlToSign.UpdateAttrAt("SOAP-ENV:Header|ns1:MeFHeader",true,"xmlns:wsu","http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd"); xmlToSign.UpdateAttrAt("SOAP-ENV:Header|ns1:MeFHeader",true,"wsu:Id","id-1214941501"); xmlToSign.UpdateChildContent("SOAP-ENV:Header|ns1:MeFHeader|ns1:MessageID","12345202018200000234"); xmlToSign.UpdateChildContent("SOAP-ENV:Header|ns1:MeFHeader|ns1:Action","Login"); xmlToSign.UpdateChildContent("SOAP-ENV:Header|ns1:MeFHeader|ns1:MessageTs","2020-06-30T15:25:42.678Z"); xmlToSign.UpdateChildContentInt("SOAP-ENV:Header|ns1:MeFHeader|ns1:ETIN",12345); xmlToSign.UpdateChildContent("SOAP-ENV:Header|ns1:MeFHeader|ns1:SessionKeyCd","Y"); xmlToSign.UpdateChildContent("SOAP-ENV:Header|ns1:MeFHeader|ns1:TestCd","P"); xmlToSign.UpdateChildContentInt("SOAP-ENV:Header|ns1:MeFHeader|ns1:AppSysID",65432190); xmlToSign.UpdateChildContent("SOAP-ENV:Header|ns1:MeFHeader|ns1:WSDLVersionNum","10.3"); xmlToSign.UpdateChildContent("SOAP-ENV:Header|ns1:MeFHeader|ns1:ClientSoftwareTxt","SOATest"); xmlToSign.UpdateAttrAt("SOAP-ENV:Body",true,"xmlns:wsu","http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd"); xmlToSign.UpdateAttrAt("SOAP-ENV:Body",true,"wsu:Id","id-1871558655"); xmlToSign.UpdateAttrAt("SOAP-ENV:Body|LoginRequest",true,"xmlns","http://www.irs.gov/a2a/mef/MeFMSIServices.xsd"); // ------------------------------------------------------------------------------------------- // Setup the XML DSig generator object to create the desired signature. Chilkat.XmlDSigGen gen = new Chilkat.XmlDSigGen(); gen.SigLocation = "SOAP-ENV:Envelope|SOAP-ENV:Header|wsse:Security"; gen.SigLocationMod = 0; gen.SigNamespacePrefix = "ds"; gen.SigNamespaceUri = "http://www.w3.org/2000/09/xmldsig#"; gen.SignedInfoCanonAlg = "EXCL_C14N"; gen.SignedInfoDigestMethod = "sha256"; // Set the KeyInfoId before adding references.. gen.KeyInfoId = "KeyId-256137097"; // -------- Reference 1 -------- gen.AddSameDocRef("id-1214941501","sha256","EXCL_C14N","",""); // -------- Reference 2 -------- gen.AddSameDocRef("id-1871558655","sha256","EXCL_C14N","",""); // Provide a certificate + private key. (PFX password is test123) Chilkat.Cert cert = new Chilkat.Cert(); success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123"); if (success != true) { Debug.WriteLine(cert.LastErrorText); return; } gen.SetX509Cert(cert,true); gen.KeyInfoType = "Custom"; // Create the custom KeyInfo XML.. Chilkat.Xml xmlCustomKeyInfo = new Chilkat.Xml(); xmlCustomKeyInfo.Tag = "wsse:SecurityTokenReference"; xmlCustomKeyInfo.AddAttribute("xmlns:wsu","http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd"); xmlCustomKeyInfo.AddAttribute("wsu:Id","STRId-1862925355"); xmlCustomKeyInfo.UpdateAttrAt("wsse:Reference",true,"URI","#CertId-1673181727"); xmlCustomKeyInfo.UpdateAttrAt("wsse:Reference",true,"ValueType","http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3"); xmlCustomKeyInfo.EmitXmlDecl = false; gen.CustomKeyInfoXml = xmlCustomKeyInfo.GetXml(); // ------------------------------------------------------------------------------------------- // Load XML to be signed... Chilkat.StringBuilder sbXml = new Chilkat.StringBuilder(); xmlToSign.GetXmlSb(sbXml); // Update BinarySecurityToken_Base64Binary_Content with the actual X509 of the signing cert. int nReplaced = sbXml.Replace("BinarySecurityToken_Base64Binary_Content",cert.GetEncoded()); gen.Behaviors = "IndentedSignature"; // Sign the XML... success = gen.CreateXmlDSigSb(sbXml); if (success != true) { Debug.WriteLine(gen.LastErrorText); return; } // ----------------------------------------------- // Save the signed XML to a file. success = sbXml.WriteFile("c:/temp/qa_output/signedXml.xml","utf-8",false); Debug.WriteLine(sbXml.GetAsString()); |
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