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uncategorized

 

 

 

(DataFlex) XML Signature Multiple External References

Demonstrates how to add multiple external references to an XML digital signature.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoGen
    Handle hoObject1
    Handle hoHttp
    Variant vBd
    Handle hoBd
    String sUrl
    Variant vCert
    Handle hoCert
    Variant vSbXml
    Handle hoSbXml
    Handle hoVerifier
    Boolean iVerified
    String sTemp1

    // 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>
    // 

    Move True To iSuccess
    Get Create (RefClass(cComChilkatXmlDSigGen)) To hoGen
    If (Not(IsComObjectCreated(hoGen))) Begin
        Send CreateComObject of hoGen
    End

    Set ComSigLocation Of hoGen To ""
    Set ComSigLocationMod Of hoGen To 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.
    Set ComSigId Of hoGen To "xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4"
    Set ComSigNamespacePrefix Of hoGen To "ds"
    Set ComSigNamespaceUri Of hoGen To "http://www.w3.org/2000/09/xmldsig#"
    Set ComSigValueId Of hoGen To "xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-sigvalue"
    Set ComSignedInfoCanonAlg Of hoGen To "C14N"
    Set ComSignedInfoDigestMethod Of hoGen To "sha256"

    // Create an Object to be added to the Signature.
    Get Create (RefClass(cComChilkatXml)) To hoObject1
    If (Not(IsComObjectCreated(hoObject1))) Begin
        Send CreateComObject of hoObject1
    End
    Set ComTag Of hoObject1 To "xades:QualifyingProperties"
    Get ComAddAttribute Of hoObject1 "xmlns:xades" "http://uri.etsi.org/01903/v1.3.2#" To iSuccess
    Get ComAddAttribute Of hoObject1 "xmlns:xades141" "http://uri.etsi.org/01903/v1.4.1#" To iSuccess
    Get ComAddAttribute Of hoObject1 "Target" "#xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4" To iSuccess
    Get ComUpdateAttrAt Of hoObject1 "xades:SignedProperties" True "Id" "xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-signedprops" To iSuccess
    Send ComUpdateChildContent To hoObject1 "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...
    Get ComUpdateAttrAt Of hoObject1 "xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:CertDigest|ds:DigestMethod" True "Algorithm" "http://www.w3.org/2001/04/xmlenc#sha256" To iSuccess
    Send ComUpdateChildContent To hoObject1 "xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:CertDigest|ds:DigestValue" "TO BE GENERATED BY CHILKAT"
    Send ComUpdateChildContent To hoObject1 "xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:IssuerSerial|ds:X509IssuerName" "TO BE GENERATED BY CHILKAT"
    Send ComUpdateChildContent To hoObject1 "xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:IssuerSerial|ds:X509SerialNumber" "TO BE GENERATED BY CHILKAT"
    Get ComUpdateAttrAt Of hoObject1 "xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert[1]|xades:CertDigest|ds:DigestMethod" True "Algorithm" "http://www.w3.org/2001/04/xmlenc#sha256" To iSuccess
    Send ComUpdateChildContent To hoObject1 "xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert[1]|xades:CertDigest|ds:DigestValue" "TO BE GENERATED BY CHILKAT"
    Send ComUpdateChildContent To hoObject1 "xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert[1]|xades:IssuerSerial|ds:X509IssuerName" "TO BE GENERATED BY CHILKAT"
    Send ComUpdateChildContent To hoObject1 "xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert[1]|xades:IssuerSerial|ds:X509SerialNumber" "TO BE GENERATED BY CHILKAT"
    Get ComUpdateAttrAt Of hoObject1 "xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert[2]|xades:CertDigest|ds:DigestMethod" True "Algorithm" "http://www.w3.org/2001/04/xmlenc#sha256" To iSuccess
    Send ComUpdateChildContent To hoObject1 "xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert[2]|xades:CertDigest|ds:DigestValue" "TO BE GENERATED BY CHILKAT"
    Send ComUpdateChildContent To hoObject1 "xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert[2]|xades:IssuerSerial|ds:X509IssuerName" "TO BE GENERATED BY CHILKAT"
    Send ComUpdateChildContent To hoObject1 "xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert[2]|xades:IssuerSerial|ds:X509SerialNumber" "TO BE GENERATED BY CHILKAT"

    Get ComGetXml Of hoObject1 To sTemp1
    Get ComAddObject Of hoGen "" sTemp1 "" "" To iSuccess

    Get Create (RefClass(cComChilkatHttp)) To hoHttp
    If (Not(IsComObjectCreated(hoHttp))) Begin
        Send CreateComObject of hoHttp
    End
    Get Create (RefClass(cComChilkatBinData)) To hoBd
    If (Not(IsComObjectCreated(hoBd))) Begin
        Send CreateComObject of hoBd
    End

    Move "https://isus.ezdrowie.gov.pl/fhir/Patient/123/_history/456" To sUrl
    Get pvComObject of hoBd to vBd
    Get ComQuickGetBd Of hoHttp sUrl vBd To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoHttp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // -------- Reference 1 --------
    Get pvComObject of hoBd to vBd
    Get ComAddExternalBinaryRef Of hoGen sUrl vBd "sha256" "" To iSuccess
    Get ComSetRefIdAttr Of hoGen sUrl "xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref0" To iSuccess

    // -------- Reference 2 --------
    Get ComClear Of hoBd To iSuccess
    Move "https://isus.ezdrowie.gov.pl/fhir/Encounter/789/_history/1" To sUrl
    Get pvComObject of hoBd to vBd
    Get ComQuickGetBd Of hoHttp sUrl vBd To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoHttp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get pvComObject of hoBd to vBd
    Get ComAddExternalBinaryRef Of hoGen sUrl vBd "sha256" "" To iSuccess
    Get ComSetRefIdAttr Of hoGen sUrl "xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref1" To iSuccess

    // -------- Reference 3 --------
    Get ComClear Of hoBd To iSuccess
    Move "https://isus.ezdrowie.gov.pl/fhir/Condition/123456/_history/1" To sUrl
    Get pvComObject of hoBd to vBd
    Get ComQuickGetBd Of hoHttp sUrl vBd To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoHttp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get pvComObject of hoBd to vBd
    Get ComAddExternalBinaryRef Of hoGen sUrl vBd "sha256" "" To iSuccess
    Get ComSetRefIdAttr Of hoGen sUrl "xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref2" To iSuccess

    // -------- Reference 4 --------
    Get ComClear Of hoBd To iSuccess
    Move "https://isus.ezdrowie.gov.pl/fhir/Procedure/123456/_history/1" To sUrl
    Get pvComObject of hoBd to vBd
    Get ComQuickGetBd Of hoHttp sUrl vBd To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoHttp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get pvComObject of hoBd to vBd
    Get ComAddExternalBinaryRef Of hoGen sUrl vBd "sha256" "" To iSuccess
    Get ComSetRefIdAttr Of hoGen sUrl "xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-ref3" To iSuccess

    // -------- Reference 5 --------
    Get ComAddObjectRef Of hoGen "xmldsig-2dde88a8-def0-43e4-8570-b031015a46b4-signedprops" "sha256" "C14N" "" "http://uri.etsi.org/01903#SignedProperties" To iSuccess

    // Provide a certificate + private key. (PFX password is test123)
    Get Create (RefClass(cComChilkatCert)) To hoCert
    If (Not(IsComObjectCreated(hoCert))) Begin
        Send CreateComObject of hoCert
    End
    Get ComLoadPfxFile Of hoCert "qa_data/pfx/cert_test123.pfx" "test123" To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoCert To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get pvComObject of hoCert to vCert
    Get ComSetX509Cert Of hoGen vCert True To iSuccess

    Set ComKeyInfoType Of hoGen To "X509Data"
    Set ComX509Type Of hoGen To "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.
    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbXml
    If (Not(IsComObjectCreated(hoSbXml))) Begin
        Send CreateComObject of hoSbXml
    End

    Set ComBehaviors Of hoGen To "IndentedSignature"

    // Sign the XML...
    Get pvComObject of hoSbXml to vSbXml
    Get ComCreateXmlDSigSb Of hoGen vSbXml To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoGen To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    // -----------------------------------------------

    // Save the signed XML to a file.
    Get ComWriteFile Of hoSbXml "qa_output/signedXml.xml" "utf-8" False To iSuccess

    Get ComGetAsString Of hoSbXml To sTemp1
    Showln sTemp1

    // ----------------------------------------
    // Verify the signature we just produced...
    Get Create (RefClass(cComChilkatXmlDSig)) To hoVerifier
    If (Not(IsComObjectCreated(hoVerifier))) Begin
        Send CreateComObject of hoVerifier
    End
    Get pvComObject of hoSbXml to vSbXml
    Get ComLoadSignatureSb Of hoVerifier vSbXml To iSuccess
    If (iSuccess <> True) Begin
        Get ComLastErrorText Of hoVerifier To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get ComVerifySignature Of hoVerifier True To iVerified
    If (iVerified <> True) Begin
        Get ComLastErrorText Of hoVerifier To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Showln "This signature was successfully verified."


End_Procedure
 

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