Classic ASP
Classic ASP
XML Signature Multiple External References
See more XML Digital Signatures Examples
Demonstrates how to add multiple external references to an XML digital signature.Chilkat Classic ASP Downloads
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success = 0
' 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>
'
success = 1
set gen = Server.CreateObject("Chilkat.XmlDSigGen")
gen.SigLocation = ""
gen.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.
gen.SigId = "xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4"
gen.SigNamespacePrefix = "ds"
gen.SigNamespaceUri = "http://www.w3.org/2000/09/xmldsig#"
gen.SigValueId = "xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-sigvalue"
gen.SignedInfoCanonAlg = "C14N"
gen.SignedInfoDigestMethod = "sha256"
' Create an Object to be added to the Signature.
set object1 = Server.CreateObject("Chilkat.Xml")
object1.Tag = "xades:QualifyingProperties"
success = object1.AddAttribute("xmlns:xades","http://uri.etsi.org/01903/v1.3.2#")
success = object1.AddAttribute("xmlns:xades141","http://uri.etsi.org/01903/v1.4.1#")
success = object1.AddAttribute("Target","#xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4")
success = object1.UpdateAttrAt("xades:SignedProperties",1,"Id","xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-signedprops")
object1.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...
success = object1.UpdateAttrAt("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestMethod",1,"Algorithm","http://www.w3.org/2001/04/xmlenc#sha256")
object1.UpdateChildContent "xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestValue","TO BE GENERATED BY CHILKAT"
object1.UpdateChildContent "xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:IssuerSerialV2","TO BE GENERATED BY CHILKAT"
success = gen.AddObject("",object1.GetXml(),"","")
set http = Server.CreateObject("Chilkat.Http")
set bd = Server.CreateObject("Chilkat.BinData")
url = "https://isus.ezdrowie.gov.pl/fhir/Patient/123/_history/456"
success = http.QuickGetBd(url,bd)
If (success <> 1) Then
Response.Write "<pre>" & Server.HTMLEncode( http.LastErrorText) & "</pre>"
Response.End
End If
' -------- Reference 1 --------
success = gen.AddExternalBinaryRef(url,bd,"sha256","")
success = gen.SetRefIdAttr(url,"xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref0")
' -------- Reference 2 --------
success = bd.Clear()
url = "https://isus.ezdrowie.gov.pl/fhir/Encounter/789/_history/1"
success = http.QuickGetBd(url,bd)
If (success <> 1) Then
Response.Write "<pre>" & Server.HTMLEncode( http.LastErrorText) & "</pre>"
Response.End
End If
success = gen.AddExternalBinaryRef(url,bd,"sha256","")
success = gen.SetRefIdAttr(url,"xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref1")
' -------- Reference 3 --------
success = bd.Clear()
url = "https://isus.ezdrowie.gov.pl/fhir/Condition/123456/_history/1"
success = http.QuickGetBd(url,bd)
If (success <> 1) Then
Response.Write "<pre>" & Server.HTMLEncode( http.LastErrorText) & "</pre>"
Response.End
End If
success = gen.AddExternalBinaryRef(url,bd,"sha256","")
success = gen.SetRefIdAttr(url,"xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref2")
' -------- Reference 4 --------
success = bd.Clear()
url = "https://isus.ezdrowie.gov.pl/fhir/Procedure/123456/_history/1"
success = http.QuickGetBd(url,bd)
If (success <> 1) Then
Response.Write "<pre>" & Server.HTMLEncode( http.LastErrorText) & "</pre>"
Response.End
End If
success = gen.AddExternalBinaryRef(url,bd,"sha256","")
success = gen.SetRefIdAttr(url,"xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref3")
' -------- Reference 5 --------
success = gen.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)
set cert = Server.CreateObject("Chilkat.Cert")
success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123")
If (success <> 1) Then
Response.Write "<pre>" & Server.HTMLEncode( cert.LastErrorText) & "</pre>"
Response.End
End If
success = gen.SetX509Cert(cert,1)
gen.KeyInfoType = "X509Data"
gen.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.
set sbXml = Server.CreateObject("Chilkat.StringBuilder")
gen.Behaviors = "IndentedSignature"
' Sign the XML...
success = gen.CreateXmlDSigSb(sbXml)
If (success <> 1) Then
Response.Write "<pre>" & Server.HTMLEncode( gen.LastErrorText) & "</pre>"
Response.End
End If
' -----------------------------------------------
' Save the signed XML to a file.
success = sbXml.WriteFile("qa_output/signedXml.xml","utf-8",0)
Response.Write "<pre>" & Server.HTMLEncode( sbXml.GetAsString()) & "</pre>"
' ----------------------------------------
' Verify the signature we just produced...
set verifier = Server.CreateObject("Chilkat.XmlDSig")
success = verifier.LoadSignatureSb(sbXml)
If (success <> 1) Then
Response.Write "<pre>" & Server.HTMLEncode( verifier.LastErrorText) & "</pre>"
Response.End
End If
verified = verifier.VerifySignature(1)
If (verified <> 1) Then
Response.Write "<pre>" & Server.HTMLEncode( verifier.LastErrorText) & "</pre>"
Response.End
End If
Response.Write "<pre>" & Server.HTMLEncode( "This signature was successfully verified.") & "</pre>"
%>
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