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(PowerBuilder) XML Signature Multiple External ReferencesDemonstrates how to add multiple external references to an XML digital signature.
integer li_rc integer li_Success oleobject loo_Gen oleobject loo_Object1 oleobject loo_Http oleobject loo_Bd string ls_Url oleobject loo_Cert oleobject loo_SbXml oleobject loo_Verifier integer li_Verified // 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> // li_Success = 1 loo_Gen = create oleobject // Use "Chilkat_9_5_0.XmlDSigGen" for versions of Chilkat < 10.0.0 li_rc = loo_Gen.ConnectToNewObject("Chilkat.XmlDSigGen") if li_rc < 0 then destroy loo_Gen MessageBox("Error","Connecting to COM object failed") return end if loo_Gen.SigLocation = "" loo_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. loo_Gen.SigId = "xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4" loo_Gen.SigNamespacePrefix = "ds" loo_Gen.SigNamespaceUri = "http://www.w3.org/2000/09/xmldsig#" loo_Gen.SigValueId = "xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-sigvalue" loo_Gen.SignedInfoCanonAlg = "C14N" loo_Gen.SignedInfoDigestMethod = "sha256" // Create an Object to be added to the Signature. loo_Object1 = create oleobject // Use "Chilkat_9_5_0.Xml" for versions of Chilkat < 10.0.0 li_rc = loo_Object1.ConnectToNewObject("Chilkat.Xml") loo_Object1.Tag = "xades:QualifyingProperties" loo_Object1.AddAttribute("xmlns:xades","http://uri.etsi.org/01903/v1.3.2#") loo_Object1.AddAttribute("xmlns:xades141","http://uri.etsi.org/01903/v1.4.1#") loo_Object1.AddAttribute("Target","#xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4") loo_Object1.UpdateAttrAt("xades:SignedProperties",1,"Id","xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-signedprops") loo_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... loo_Object1.UpdateAttrAt("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestMethod",1,"Algorithm","http://www.w3.org/2001/04/xmlenc#sha256") loo_Object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestValue","TO BE GENERATED BY CHILKAT") loo_Object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:IssuerSerialV2","TO BE GENERATED BY CHILKAT") loo_Gen.AddObject("",loo_Object1.GetXml(),"","") loo_Http = create oleobject // Use "Chilkat_9_5_0.Http" for versions of Chilkat < 10.0.0 li_rc = loo_Http.ConnectToNewObject("Chilkat.Http") loo_Bd = create oleobject // Use "Chilkat_9_5_0.BinData" for versions of Chilkat < 10.0.0 li_rc = loo_Bd.ConnectToNewObject("Chilkat.BinData") ls_Url = "https://isus.ezdrowie.gov.pl/fhir/Patient/123/_history/456" li_Success = loo_Http.QuickGetBd(ls_Url,loo_Bd) if li_Success <> 1 then Write-Debug loo_Http.LastErrorText destroy loo_Gen destroy loo_Object1 destroy loo_Http destroy loo_Bd return end if // -------- Reference 1 -------- loo_Gen.AddExternalBinaryRef(ls_Url,loo_Bd,"sha256","") loo_Gen.SetRefIdAttr(ls_Url,"xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref0") // -------- Reference 2 -------- loo_Bd.Clear() ls_Url = "https://isus.ezdrowie.gov.pl/fhir/Encounter/789/_history/1" li_Success = loo_Http.QuickGetBd(ls_Url,loo_Bd) if li_Success <> 1 then Write-Debug loo_Http.LastErrorText destroy loo_Gen destroy loo_Object1 destroy loo_Http destroy loo_Bd return end if loo_Gen.AddExternalBinaryRef(ls_Url,loo_Bd,"sha256","") loo_Gen.SetRefIdAttr(ls_Url,"xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref1") // -------- Reference 3 -------- loo_Bd.Clear() ls_Url = "https://isus.ezdrowie.gov.pl/fhir/Condition/123456/_history/1" li_Success = loo_Http.QuickGetBd(ls_Url,loo_Bd) if li_Success <> 1 then Write-Debug loo_Http.LastErrorText destroy loo_Gen destroy loo_Object1 destroy loo_Http destroy loo_Bd return end if loo_Gen.AddExternalBinaryRef(ls_Url,loo_Bd,"sha256","") loo_Gen.SetRefIdAttr(ls_Url,"xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref2") // -------- Reference 4 -------- loo_Bd.Clear() ls_Url = "https://isus.ezdrowie.gov.pl/fhir/Procedure/123456/_history/1" li_Success = loo_Http.QuickGetBd(ls_Url,loo_Bd) if li_Success <> 1 then Write-Debug loo_Http.LastErrorText destroy loo_Gen destroy loo_Object1 destroy loo_Http destroy loo_Bd return end if loo_Gen.AddExternalBinaryRef(ls_Url,loo_Bd,"sha256","") loo_Gen.SetRefIdAttr(ls_Url,"xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref3") // -------- Reference 5 -------- loo_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) loo_Cert = create oleobject // Use "Chilkat_9_5_0.Cert" for versions of Chilkat < 10.0.0 li_rc = loo_Cert.ConnectToNewObject("Chilkat.Cert") li_Success = loo_Cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123") if li_Success <> 1 then Write-Debug loo_Cert.LastErrorText destroy loo_Gen destroy loo_Object1 destroy loo_Http destroy loo_Bd destroy loo_Cert return end if loo_Gen.SetX509Cert(loo_Cert,1) loo_Gen.KeyInfoType = "X509Data" loo_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. loo_SbXml = create oleobject // Use "Chilkat_9_5_0.StringBuilder" for versions of Chilkat < 10.0.0 li_rc = loo_SbXml.ConnectToNewObject("Chilkat.StringBuilder") loo_Gen.Behaviors = "IndentedSignature" // Sign the XML... li_Success = loo_Gen.CreateXmlDSigSb(loo_SbXml) if li_Success <> 1 then Write-Debug loo_Gen.LastErrorText destroy loo_Gen destroy loo_Object1 destroy loo_Http destroy loo_Bd destroy loo_Cert destroy loo_SbXml return end if // ----------------------------------------------- // Save the signed XML to a file. li_Success = loo_SbXml.WriteFile("qa_output/signedXml.xml","utf-8",0) Write-Debug loo_SbXml.GetAsString() // ---------------------------------------- // Verify the signature we just produced... loo_Verifier = create oleobject // Use "Chilkat_9_5_0.XmlDSig" for versions of Chilkat < 10.0.0 li_rc = loo_Verifier.ConnectToNewObject("Chilkat.XmlDSig") li_Success = loo_Verifier.LoadSignatureSb(loo_SbXml) if li_Success <> 1 then Write-Debug loo_Verifier.LastErrorText destroy loo_Gen destroy loo_Object1 destroy loo_Http destroy loo_Bd destroy loo_Cert destroy loo_SbXml destroy loo_Verifier return end if li_Verified = loo_Verifier.VerifySignature(1) if li_Verified <> 1 then Write-Debug loo_Verifier.LastErrorText destroy loo_Gen destroy loo_Object1 destroy loo_Http destroy loo_Bd destroy loo_Cert destroy loo_SbXml destroy loo_Verifier return end if Write-Debug "This signature was successfully verified." destroy loo_Gen destroy loo_Object1 destroy loo_Http destroy loo_Bd destroy loo_Cert destroy loo_SbXml destroy loo_Verifier |
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