(DataFlex) Sign Italian SPID Metadata XML

Demonstrates how to create an XML digital signature for Italian SPID Metadata.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Variant vSbXml
    Handle hoSbXml
    Handle hoGen
    Variant vCert
    Handle hoCert
    Handle hoVerifier
    Integer iNumSigs
    Integer iVerifyIdx
    Boolean iVerified
    String sTemp1

    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    Move True To iSuccess

    // Load the XML to be signed.
    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbXml
    If (Not(IsComObjectCreated(hoSbXml))) Begin
        Send CreateComObject of hoSbXml
    End
    Get ComLoadFile Of hoSbXml "qa_data/xml_dsig/spid_metadata.xml" "utf-8" To iSuccess
    If (iSuccess = False) Begin
        Showln "Failed to load the input file."
        Procedure_Return
    End

    // The XML to sign contains XML such as this:

    // <?xml version="1.0" encoding="utf-8"?>
    // <md:EntityDescriptor xmlns:md="urn:oasis:names:tc:SAML:2.0:metadata" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" entityID="https://***.it" ID="_AE17AFFF-A600-49D5-B81D-76EEA55B50FF">
    //     <md:SPSSODescriptor protocolSupportEnumeration="urn:oasis:names:tc:SAML:2.0:protocol" AuthnRequestsSigned="true" WantAssertionsSigned="true">
    //         <md:KeyDescriptor use="signing">
    //             <ds:KeyInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
    //                 <ds:X509Data>
    //                     <ds:X509Certificate>MIIF5...</ds:X509Certificate>
    //                 </ds:X509Data>
    //             </ds:KeyInfo>
    //         </md:KeyDescriptor>
    //         <md:KeyDescriptor use="encryption">
    //             <ds:KeyInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
    //                 <ds:X509Data>
    //                     <ds:X509Certificate>MIIF5...</ds:X509Certificate>
    //                 </ds:X509Data>
    //             </ds:KeyInfo>
    //         </md:KeyDescriptor>
    //         <md:SingleLogoutService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" Location="https://***.it/it-it/spid/logout"/>
    //         <md:NameIDFormat>urn:oasis:names:tc:SAML:2.0:nameid-format:transient</md:NameIDFormat>
    //         <md:AssertionConsumerService Binding="urn:oasis:names:tc:SAML:2.0:bindings:HTTP-POST" Location="https://***.it/it-it/spid/loginresp" index="0" isDefault="true"/>
    //         <md:AttributeConsumingService index="1">
    //             <md:ServiceName xml:lang="it">Servizi Online</md:ServiceName>
    //             <md:ServiceDescription xml:lang="it">Accesso ai Servizi Online</md:ServiceDescription>
    //             <md:RequestedAttribute Name="spidCode" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:basic"/>
    //             <md:RequestedAttribute Name="name" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:basic"/>
    //             <md:RequestedAttribute Name="familyName" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:basic"/>
    //             <md:RequestedAttribute Name="fiscalNumber" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:basic"/>
    //         </md:AttributeConsumingService>
    //     </md:SPSSODescriptor>
    //     <md:Organization>
    //         <md:OrganizationName xml:lang="it">SomeCompany s.r.l.</md:OrganizationName>
    //         <md:OrganizationDisplayName xml:lang="it">SomeCompany s.r.l.</md:OrganizationDisplayName>
    //         <md:OrganizationURL xml:lang="it">https://***.it</md:OrganizationURL>
    //     </md:Organization>
    // </md:EntityDescriptor>

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

    Set ComSigLocation Of hoGen To "md:EntityDescriptor|md:SPSSODescriptor"
    Set ComSigLocationMod Of hoGen To 2
    Set ComSignedInfoCanonAlg Of hoGen To "EXCL_C14N"
    Set ComSignedInfoDigestMethod Of hoGen To "sha256"

    // -------- Reference 1 --------
    Get ComAddSameDocRef Of hoGen "_AE17AFFF-A600-49D5-B81D-76EEA55B50FF" "sha256" "EXCL_C14N" "" "" 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+KeyValue"
    Set ComX509Type Of hoGen To "Certificate"

    Set ComBehaviors Of hoGen To "IndentedSignature,ForceAddEnvelopedSignatureTransform,OmitAlreadyDefinedSigNamespace"

    // 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 signatures 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 ComNumSignatures Of hoVerifier To iNumSigs
    Move 0 To iVerifyIdx
    While (iVerifyIdx < iNumSigs)
        Set ComSelector Of hoVerifier To iVerifyIdx
        Get ComVerifySignature Of hoVerifier True To iVerified
        If (iVerified <> True) Begin
            Get ComLastErrorText Of hoVerifier To sTemp1
            Showln sTemp1
            Procedure_Return
        End

        Move (iVerifyIdx + 1) To iVerifyIdx
    Loop

    Showln "All signatures were successfully verified."


End_Procedure