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(Xojo Plugin) XML-DSig Add Reference with Transforms Specified ExplicitlyDemonstrates how to use the new AddSameDocRef2 method to explicitly specify the XML Transforms fragment.
// This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. Dim success As Boolean 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 Dim xmlToSign As New Chilkat.Xml xmlToSign.Tag = "doc" success = xmlToSign.UpdateAttrAt("s",True,"id","s1") xmlToSign.UpdateChildContent "s","Some text..." xmlToSign.UpdateChildContent "p","Some text..." success = xmlToSign.UpdateAttrAt("p[1]",True,"class","note") xmlToSign.UpdateChildContent "p[1]","A note..." System.DebugLog(xmlToSign.GetXml()) Dim gen As 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> Dim object1 As New Chilkat.Xml object1.Tag = "xades:QualifyingProperties" success = object1.AddAttribute("Id","Signature-78f29839-06af-448f-b479-ca46457fab1b-QualifyingProperties") success = object1.AddAttribute("Target","#Signature-78f29839-06af-448f-b479-ca46457fab1b-Signature") success = object1.AddAttribute("xmlns:ds","http://www.w3.org/2000/09/xmldsig#") success = object1.AddAttribute("xmlns:xades","http://uri.etsi.org/01903/v1.3.2#") success = 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" // Note: It may be that http://www.w3.org/2001/04/xmlenc#sha256 is needed in the following line instead of http://www.w3.org/2000/09/xmldsig#sha1 success = 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" success = 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","" success = 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","" System.DebugLog(object1.GetXml()) success = 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> Dim xml1 As New Chilkat.Xml xml1.Tag = "ds:Transforms" success = xml1.UpdateAttrAt("ds:Transform",True,"Algorithm","http://www.w3.org/TR/2001/REC-xml-c14n-20010315") success = xml1.UpdateAttrAt("ds:Transform[1]",True,"Algorithm","http://www.w3.org/2000/09/xmldsig#enveloped-signature") success = xml1.UpdateAttrAt("ds:Transform[2]",True,"Algorithm","http://www.w3.org/TR/1999/REC-xpath-19991116") success = 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. System.DebugLog(xml1.GetXml()) success = gen.AddSameDocRef2("","sha1",xml1,"") success = gen.SetRefIdAttr("","Reference-24eb6003-d41c-442c-a731-d4c58f94790b") // -------- Reference 2 -------- success = gen.AddObjectRef("Signature-78f29839-06af-448f-b479-ca46457fab1b-SignedProperties","sha1","","","http://uri.etsi.org/01903#SignedProperties") // -------- Reference 3 -------- success = gen.AddSameDocRef("Signature-78f29839-06af-448f-b479-ca46457fab1b-KeyInfo","sha1","","","") // Provide a certificate + private key. (PFX password is test123) Dim cert As New Chilkat.Cert success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123") If (success <> True) Then System.DebugLog(cert.LastErrorText) Return End If success = gen.SetX509Cert(cert,True) gen.KeyInfoType = "X509Data+KeyValue" gen.X509Type = "CertChain" // Load XML to be signed... Dim sbXml As New Chilkat.StringBuilder success = xmlToSign.GetXmlSb(sbXml) gen.Behaviors = "IndentedSignature" // Sign the XML... success = gen.CreateXmlDSigSb(sbXml) If (success <> True) Then System.DebugLog(gen.LastErrorText) Return End If // ----------------------------------------------- // Save the signed XML to a file. success = sbXml.WriteFile("qa_output/signedXml.xml","utf-8",False) System.DebugLog(sbXml.GetAsString()) // ---------------------------------------- // Verify the signatures we just produced... Dim verifier As New Chilkat.XmlDSig success = verifier.LoadSignatureSb(sbXml) If (success <> True) Then System.DebugLog(verifier.LastErrorText) Return End If Dim numSigs As Int32 numSigs = verifier.NumSignatures Dim verifyIdx As Int32 verifyIdx = 0 While verifyIdx < numSigs verifier.Selector = verifyIdx Dim verified As Boolean verified = verifier.VerifySignature(True) If (verified <> True) Then System.DebugLog(verifier.LastErrorText) Return End If verifyIdx = verifyIdx + 1 Wend System.DebugLog("All signatures were successfully verified.") |
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