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(C# UWP/WinRT) XML-DSig Add Reference with Transforms Specified ExplicitlyDemonstrates how to use the new AddSameDocRef2 method to explicitly specify the XML Transforms fragment. Note: This example requires Chilkat v9.5.0.90 or greater.
// This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. bool success = true; // Create the following XML to be signed: // <doc> // <s id="s1">Some text...</s> // <p>Some text...</p> // <p class="note">A note...</p> // </doc> // Use this online tool to generate code from sample XML: // Generate Code to Create XML Chilkat.Xml xmlToSign = new Chilkat.Xml(); xmlToSign.Tag = "doc"; xmlToSign.UpdateAttrAt("s",true,"id","s1"); xmlToSign.UpdateChildContent("s","Some text..."); xmlToSign.UpdateChildContent("p","Some text..."); xmlToSign.UpdateAttrAt("p[1]",true,"class","note"); xmlToSign.UpdateChildContent("p[1]","A note..."); Debug.WriteLine(xmlToSign.GetXml()); Chilkat.XmlDSigGen gen = new Chilkat.XmlDSigGen(); gen.SigLocation = "doc"; gen.SigLocationMod = 0; gen.SigId = "Signature-78f29839-06af-448f-b479-ca46457fab1b-Signature"; gen.SigNamespacePrefix = "ds"; gen.SigNamespaceUri = "http://www.w3.org/2000/09/xmldsig#"; gen.SigValueId = "Signature-78f29839-06af-448f-b479-ca46457fab1b-SignatureValue"; gen.SignedInfoCanonAlg = "C14N"; gen.SignedInfoDigestMethod = "sha1"; // Set the KeyInfoId before adding references.. gen.KeyInfoId = "Signature-78f29839-06af-448f-b479-ca46457fab1b-KeyInfo"; // The following XML to be added as an Object to the Signature // Use this online tool to generate code from sample XML: // Generate Code to Create XML // <xades:QualifyingProperties Id="Signature-78f29839-06af-448f-b479-ca46457fab1b-QualifyingProperties" Target="#Signature-78f29839-06af-448f-b479-ca46457fab1b-Signature" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:xades="http://uri.etsi.org/01903/v1.3.2#"> // <xades:SignedProperties Id="Signature-78f29839-06af-448f-b479-ca46457fab1b-SignedProperties"> // <xades:SignedSignatureProperties> // <xades:SigningTime>TO BE GENERATED BY CHILKAT</xades:SigningTime> // <xades:SigningCertificate> // <xades:Cert> // <xades:CertDigest> // <ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/> // <ds:DigestValue>TO BE GENERATED BY CHILKAT</ds:DigestValue> // </xades:CertDigest> // <xades:IssuerSerial> // <ds:X509IssuerName>TO BE GENERATED BY CHILKAT</ds:X509IssuerName> // <ds:X509SerialNumber>TO BE GENERATED BY CHILKAT</ds:X509SerialNumber> // </xades:IssuerSerial> // </xades:Cert> // </xades:SigningCertificate> // </xades:SignedSignatureProperties> // <xades:SignedDataObjectProperties> // <xades:DataObjectFormat ObjectReference="#Reference-24eb6003-d41c-442c-a731-d4c58f94790b"> // <xades:Description/> // <xades:ObjectIdentifier> // <xades:Identifier Qualifier="OIDAsURN">urn:oid:1.2.840.10003.5.109.10</xades:Identifier> // <xades:Description/> // </xades:ObjectIdentifier> // <xades:MimeType>text/xml</xades:MimeType> // <xades:Encoding/> // </xades:DataObjectFormat> // </xades:SignedDataObjectProperties> // </xades:SignedProperties> // </xades:QualifyingProperties> Chilkat.Xml object1 = new Chilkat.Xml(); object1.Tag = "xades:QualifyingProperties"; object1.AddAttribute("Id","Signature-78f29839-06af-448f-b479-ca46457fab1b-QualifyingProperties"); object1.AddAttribute("Target","#Signature-78f29839-06af-448f-b479-ca46457fab1b-Signature"); object1.AddAttribute("xmlns:ds","http://www.w3.org/2000/09/xmldsig#"); object1.AddAttribute("xmlns:xades","http://uri.etsi.org/01903/v1.3.2#"); object1.UpdateAttrAt("xades:SignedProperties",true,"Id","Signature-78f29839-06af-448f-b479-ca46457fab1b-SignedProperties"); object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningTime","TO BE GENERATED BY CHILKAT"); object1.UpdateAttrAt("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:CertDigest|ds:DigestMethod",true,"Algorithm","http://www.w3.org/2000/09/xmldsig#sha1"); object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:CertDigest|ds:DigestValue","TO BE GENERATED BY CHILKAT"); object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:IssuerSerial|ds:X509IssuerName","TO BE GENERATED BY CHILKAT"); object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:IssuerSerial|ds:X509SerialNumber","TO BE GENERATED BY CHILKAT"); object1.UpdateAttrAt("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat",true,"ObjectReference","#Reference-24eb6003-d41c-442c-a731-d4c58f94790b"); object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Description",""); object1.UpdateAttrAt("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Identifier",true,"Qualifier","OIDAsURN"); object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Identifier","urn:oid:1.2.840.10003.5.109.10"); object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Description",""); object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:MimeType","text/xml"); object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Encoding",""); Debug.WriteLine(object1.GetXml()); gen.AddObject("",object1.GetXml(),"",""); // -------- Reference 1 -------- // Create the following Transforms fragment: // Use this online tool to generate code from sample XML: // Generate Code to Create XML // <ds:Transforms> // <ds:Transform Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/> // <ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/> // <ds:Transform Algorithm="http://www.w3.org/TR/1999/REC-xpath-19991116"> // <ds:XPath xmlns:ds="http://www.w3.org/2000/09/xmldsig#">not(ancestor-or-self::ds:Signature)</ds:XPath> // </ds:Transform> // </ds:Transforms> Chilkat.Xml xml1 = new Chilkat.Xml(); xml1.Tag = "ds:Transforms"; xml1.UpdateAttrAt("ds:Transform",true,"Algorithm","http://www.w3.org/TR/2001/REC-xml-c14n-20010315"); xml1.UpdateAttrAt("ds:Transform[1]",true,"Algorithm","http://www.w3.org/2000/09/xmldsig#enveloped-signature"); xml1.UpdateAttrAt("ds:Transform[2]",true,"Algorithm","http://www.w3.org/TR/1999/REC-xpath-19991116"); xml1.UpdateAttrAt("ds:Transform[2]|ds:XPath",true,"xmlns:ds","http://www.w3.org/2000/09/xmldsig#"); xml1.UpdateChildContent("ds:Transform[2]|ds:XPath","not(ancestor-or-self::ds:Signature)"); // This is the "Transforms" XML fragment passed to AddSameDocRef2. Debug.WriteLine(xml1.GetXml()); gen.AddSameDocRef2("","sha1",xml1,""); gen.SetRefIdAttr("","Reference-24eb6003-d41c-442c-a731-d4c58f94790b"); // -------- Reference 2 -------- gen.AddObjectRef("Signature-78f29839-06af-448f-b479-ca46457fab1b-SignedProperties","sha1","","","http://uri.etsi.org/01903#SignedProperties"); // -------- Reference 3 -------- gen.AddSameDocRef("Signature-78f29839-06af-448f-b479-ca46457fab1b-KeyInfo","sha1","","",""); // 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 = "X509Data+KeyValue"; gen.X509Type = "CertChain"; // Load XML to be signed... Chilkat.StringBuilder sbXml = new Chilkat.StringBuilder(); xmlToSign.GetXmlSb(sbXml); 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("qa_output/signedXml.xml","utf-8",false); Debug.WriteLine(sbXml.GetAsString()); // ---------------------------------------- // Verify the signatures we just produced... Chilkat.XmlDSig verifier = new Chilkat.XmlDSig(); success = verifier.LoadSignatureSb(sbXml); if (success != true) { Debug.WriteLine(verifier.LastErrorText); return; } int numSigs = verifier.NumSignatures; int verifyIdx = 0; while (verifyIdx < numSigs) { verifier.Selector = verifyIdx; bool verified = verifier.VerifySignature(true); if (verified != true) { Debug.WriteLine(verifier.LastErrorText); return; } verifyIdx = verifyIdx + 1; } Debug.WriteLine("All signatures were successfully verified."); |
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