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(AutoIt) XML Signature Multiple External ReferencesDemonstrates how to add multiple external references to an XML digital signature.
; This example requires the Chilkat API to have been previously unlocked. ; See Global Unlock Sample for sample code. ; This example creates the following signed XML with multiple external references: ; <?xml version="1.0" encoding="UTF-8"?> ; <ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#" Id="xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4"> ; <ds:SignedInfo> ; <ds:CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/> ; <ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"/> ; <ds:Reference Id="xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref0" URI="https://isus.ezdrowie.gov.pl/fhir/Patient/123/_history/456"> ; <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/> ; <ds:DigestValue>...</ds:DigestValue> ; </ds:Reference> ; <ds:Reference Id="xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref1" URI="https://isus.ezdrowie.gov.pl/fhir/Encounter/124/_history/22"> ; <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/> ; <ds:DigestValue>...</ds:DigestValue> ; </ds:Reference> ; <ds:Reference Id="xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref2" URI="https://isus.ezdrowie.gov.pl/fhir/Condition/125/_history/1"> ; <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/> ; <ds:DigestValue>...</ds:DigestValue> ; </ds:Reference> ; <ds:Reference Id="xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref3" URI="https://isus.ezdrowie.gov.pl/fhir/Procedure/126/_history/1"> ; <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/> ; <ds:DigestValue>...</ds:DigestValue> ; </ds:Reference> ; <ds:Reference Type="http://uri.etsi.org/01903#SignedProperties" URI="#xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-signedprops"> ; <ds:Transforms> ; <ds:Transform Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/> ; </ds:Transforms> ; <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/> ; <ds:DigestValue>...</ds:DigestValue> ; </ds:Reference> ; </ds:SignedInfo> ; <ds:SignatureValue Id="xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-sigvalue">...</ds:SignatureValue> ; <ds:KeyInfo> ; <ds:X509Data> ; <ds:X509Certificate>...</ds:X509Certificate> ; <ds:X509SubjectName>...</ds:X509SubjectName> ; <ds:X509IssuerSerial> ; <ds:X509IssuerName>...</ds:X509IssuerName> ; <ds:X509SerialNumber>...</ds:X509SerialNumber> ; </ds:X509IssuerSerial> ; </ds:X509Data> ; </ds:KeyInfo> ; <ds:Object> ; <xades:QualifyingProperties xmlns:xades="http://uri.etsi.org/01903/v1.3.2#" xmlns:xades141="http://uri.etsi.org/01903/v1.4.1#" Target="#xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4"> ; <xades:SignedProperties Id="xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-signedprops"> ; <xades:SignedSignatureProperties> ; <xades:SigningTime>2021-06-02T07:10:13.306+02:00</xades:SigningTime> ; <xades:SigningCertificate> ; <xades:Cert> ; <xades:CertDigest> ; <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/> ; <ds:DigestValue>...</ds:DigestValue> ; </xades:CertDigest> ; <xades:IssuerSerial> ; <ds:X509IssuerName>...</ds:X509IssuerName> ; <ds:X509SerialNumber>...</ds:X509SerialNumber> ; </xades:IssuerSerial> ; </xades:Cert> ; <xades:Cert> ; <xades:CertDigest> ; <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/> ; <ds:DigestValue>...</ds:DigestValue> ; </xades:CertDigest> ; <xades:IssuerSerial> ; <ds:X509IssuerName>...</ds:X509IssuerName> ; <ds:X509SerialNumber>...</ds:X509SerialNumber> ; </xades:IssuerSerial> ; </xades:Cert> ; <xades:Cert> ; <xades:CertDigest> ; <ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/> ; <ds:DigestValue>...</ds:DigestValue> ; </xades:CertDigest> ; <xades:IssuerSerial> ; <ds:X509IssuerName>...</ds:X509IssuerName> ; <ds:X509SerialNumber>...</ds:X509SerialNumber> ; </xades:IssuerSerial> ; </xades:Cert> ; </xades:SigningCertificate> ; </xades:SignedSignatureProperties> ; </xades:SignedProperties> ; </xades:QualifyingProperties> ; </ds:Object> ; </ds:Signature> ; Local $bSuccess = True $oGen = ObjCreate("Chilkat.XmlDSigGen") $oGen.SigLocation = "" $oGen.SigLocationMod = 0 ; Note: ID's simply need to be unique values in the signed XML document. They don't necessarily need to be GUID/UUID formatted. $oGen.SigId = "xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4" $oGen.SigNamespacePrefix = "ds" $oGen.SigNamespaceUri = "http://www.w3.org/2000/09/xmldsig#" $oGen.SigValueId = "xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-sigvalue" $oGen.SignedInfoCanonAlg = "C14N" $oGen.SignedInfoDigestMethod = "sha256" ; Create an Object to be added to the Signature. $oObject1 = ObjCreate("Chilkat.Xml") $oObject1.Tag = "xades:QualifyingProperties" $oObject1.AddAttribute("xmlns:xades","http://uri.etsi.org/01903/v1.3.2#") $oObject1.AddAttribute("xmlns:xades141","http://uri.etsi.org/01903/v1.4.1#") $oObject1.AddAttribute("Target","#xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4") $oObject1.UpdateAttrAt("xades:SignedProperties",True,"Id","xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-signedprops") $oObject1.UpdateChildContent "xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningTime","TO BE GENERATED BY CHILKAT" ; This assumes there are 3 certs in the certificate chain: The signing certificate, an intermediate root, and the root CA. ; Remove the lines with "Cert[2]" if there is no intermediate root... $oObject1.UpdateAttrAt("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestMethod",True,"Algorithm","http://www.w3.org/2001/04/xmlenc#sha256") $oObject1.UpdateChildContent "xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestValue","TO BE GENERATED BY CHILKAT" $oObject1.UpdateChildContent "xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:IssuerSerialV2","TO BE GENERATED BY CHILKAT" $oGen.AddObject("",$oObject1.GetXml(),"","") $oHttp = ObjCreate("Chilkat.Http") $oBd = ObjCreate("Chilkat.BinData") Local $sUrl = "https://isus.ezdrowie.gov.pl/fhir/Patient/123/_history/456" $bSuccess = $oHttp.QuickGetBd($sUrl,$oBd) If ($bSuccess <> True) Then ConsoleWrite($oHttp.LastErrorText & @CRLF) Exit EndIf ; -------- Reference 1 -------- $oGen.AddExternalBinaryRef($sUrl,$oBd,"sha256","") $oGen.SetRefIdAttr($sUrl,"xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref0") ; -------- Reference 2 -------- $oBd.Clear() $sUrl = "https://isus.ezdrowie.gov.pl/fhir/Encounter/789/_history/1" $bSuccess = $oHttp.QuickGetBd($sUrl,$oBd) If ($bSuccess <> True) Then ConsoleWrite($oHttp.LastErrorText & @CRLF) Exit EndIf $oGen.AddExternalBinaryRef($sUrl,$oBd,"sha256","") $oGen.SetRefIdAttr($sUrl,"xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref1") ; -------- Reference 3 -------- $oBd.Clear() $sUrl = "https://isus.ezdrowie.gov.pl/fhir/Condition/123456/_history/1" $bSuccess = $oHttp.QuickGetBd($sUrl,$oBd) If ($bSuccess <> True) Then ConsoleWrite($oHttp.LastErrorText & @CRLF) Exit EndIf $oGen.AddExternalBinaryRef($sUrl,$oBd,"sha256","") $oGen.SetRefIdAttr($sUrl,"xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref2") ; -------- Reference 4 -------- $oBd.Clear() $sUrl = "https://isus.ezdrowie.gov.pl/fhir/Procedure/123456/_history/1" $bSuccess = $oHttp.QuickGetBd($sUrl,$oBd) If ($bSuccess <> True) Then ConsoleWrite($oHttp.LastErrorText & @CRLF) Exit EndIf $oGen.AddExternalBinaryRef($sUrl,$oBd,"sha256","") $oGen.SetRefIdAttr($sUrl,"xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref3") ; -------- Reference 5 -------- $oGen.AddObjectRef("xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-signedprops","sha256","C14N","","http://uri.etsi.org/01903#SignedProperties") ; Provide a certificate + private key. (PFX password is test123) $oCert = ObjCreate("Chilkat.Cert") $bSuccess = $oCert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123") If ($bSuccess <> True) Then ConsoleWrite($oCert.LastErrorText & @CRLF) Exit EndIf $oGen.SetX509Cert($oCert,True) $oGen.KeyInfoType = "X509Data" $oGen.X509Type = "IssuerSerial,SubjectName,Certificate" ; This will be an enveloping signature where the Signature element ; is the XML document root, the signed data is contained within Object ; tag(s) within the Signature. ; Therefore, pass an empty sbXml to CreateXmlDsigSb. $oSbXml = ObjCreate("Chilkat.StringBuilder") $oGen.Behaviors = "IndentedSignature" ; Sign the XML... $bSuccess = $oGen.CreateXmlDSigSb($oSbXml) If ($bSuccess <> True) Then ConsoleWrite($oGen.LastErrorText & @CRLF) Exit EndIf ; ----------------------------------------------- ; Save the signed XML to a file. $bSuccess = $oSbXml.WriteFile("qa_output/signedXml.xml","utf-8",False) ConsoleWrite($oSbXml.GetAsString() & @CRLF) ; ---------------------------------------- ; Verify the signature we just produced... $oVerifier = ObjCreate("Chilkat.XmlDSig") $bSuccess = $oVerifier.LoadSignatureSb($oSbXml) If ($bSuccess <> True) Then ConsoleWrite($oVerifier.LastErrorText & @CRLF) Exit EndIf Local $bVerified = $oVerifier.VerifySignature(True) If ($bVerified <> True) Then ConsoleWrite($oVerifier.LastErrorText & @CRLF) Exit EndIf ConsoleWrite("This signature was successfully verified." & @CRLF) |
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