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(DataFlex) Create JPK_VAT XaDES-BES Signed XML

Demonstrates how to sign XML for JPK_VAT.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Handle hoXmlToSign
    Handle hoGen
    Handle hoObject1
    Variant vXml1
    Handle hoXml1
    Variant vXml2
    Handle hoXml2
    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 will sign the following XML document:

    // <?xml version="1.0" encoding="utf-8"?>
    // <InitUpload xmlns="http://e-dokumenty.mf.gov.pl">
    //     <DocumentType>JPK</DocumentType>
    //     <Version>01.02.01.20160617</Version>
    //     <EncryptionKey algorithm="RSA" encoding="Base64" mode="ECB" padding="PKCS#1">...</EncryptionKey>
    //     <DocumentList>
    //         <Document>
    //             <FormCode schemaVersion="1-1" systemCode="JPK_VAT (3)">JPK_VAT</FormCode>
    //             <FileName>JPK_VAT_3_v1-1_20181208.xml</FileName>
    //             <ContentLength>8736</ContentLength>
    //             <HashValue algorithm="SHA-256" encoding="Base64">JEEI1pItwh6dj/Xe1uts/x61qnjZ4DLHpkRMhmf1oQQ=</HashValue>
    //             <FileSignatureList filesNumber="1">
    //                 <Packaging>
    //                     <SplitZip mode="zip" type="split"/>
    //                 </Packaging>
    //                 <Encryption>
    //                     <AES block="16" mode="CBC" padding="PKCS#7" size="256">
    //                         <IV bytes="16" encoding="Base64">FFsCRAPYJD3J6cRvd44UDA==</IV>
    //                     </AES>
    //                 </Encryption>
    //                 <FileSignature>
    //                     <OrdinalNumber>1</OrdinalNumber>
    //                     <FileName>JPK_VAT_3_v1-1_20181208-000.xml.zip.aes</FileName>
    //                     <ContentLength>16</ContentLength>
    //                     <HashValue algorithm="MD5" encoding="Base64">BX2DTD3ASC/zF6aq/012Cg==</HashValue>
    //                 </FileSignature>
    //             </FileSignatureList>
    //         </Document>
    //     </DocumentList>
    // </InitUpload>

    // First we build the XML to be signed.
    // 
    // Use this online tool to generate the code from sample XML: 
    // Generate Code to Create XML

    Move True To iSuccess
    Get Create (RefClass(cComChilkatXml)) To hoXmlToSign
    If (Not(IsComObjectCreated(hoXmlToSign))) Begin
        Send CreateComObject of hoXmlToSign
    End
    Set ComTag Of hoXmlToSign To "InitUpload"
    Get ComAddAttribute Of hoXmlToSign "xmlns" "http://e-dokumenty.mf.gov.pl" To iSuccess
    Send ComUpdateChildContent To hoXmlToSign "DocumentType" "JPK"
    Send ComUpdateChildContent To hoXmlToSign "Version" "01.02.01.20160617"
    Get ComUpdateAttrAt Of hoXmlToSign "EncryptionKey" True "algorithm" "RSA" To iSuccess
    Get ComUpdateAttrAt Of hoXmlToSign "EncryptionKey" True "encoding" "Base64" To iSuccess
    Get ComUpdateAttrAt Of hoXmlToSign "EncryptionKey" True "mode" "ECB" To iSuccess
    Get ComUpdateAttrAt Of hoXmlToSign "EncryptionKey" True "padding" "PKCS#1" To iSuccess
    Send ComUpdateChildContent To hoXmlToSign "EncryptionKey" "..."
    Get ComUpdateAttrAt Of hoXmlToSign "DocumentList|Document|FormCode" True "schemaVersion" "1-1" To iSuccess
    Get ComUpdateAttrAt Of hoXmlToSign "DocumentList|Document|FormCode" True "systemCode" "JPK_VAT (3)" To iSuccess
    Send ComUpdateChildContent To hoXmlToSign "DocumentList|Document|FormCode" "JPK_VAT"
    Send ComUpdateChildContent To hoXmlToSign "DocumentList|Document|FileName" "JPK_VAT_3_v1-1_20181208.xml"
    Send ComUpdateChildContent To hoXmlToSign "DocumentList|Document|ContentLength" "8736"
    Get ComUpdateAttrAt Of hoXmlToSign "DocumentList|Document|HashValue" True "algorithm" "SHA-256" To iSuccess
    Get ComUpdateAttrAt Of hoXmlToSign "DocumentList|Document|HashValue" True "encoding" "Base64" To iSuccess
    Send ComUpdateChildContent To hoXmlToSign "DocumentList|Document|HashValue" "JEEI1pItwh6dj/Xe1uts/x61qnjZ4DLHpkRMhmf1oQQ="
    Get ComUpdateAttrAt Of hoXmlToSign "DocumentList|Document|FileSignatureList" True "filesNumber" "1" To iSuccess
    Get ComUpdateAttrAt Of hoXmlToSign "DocumentList|Document|FileSignatureList|Packaging|SplitZip" True "mode" "zip" To iSuccess
    Get ComUpdateAttrAt Of hoXmlToSign "DocumentList|Document|FileSignatureList|Packaging|SplitZip" True "type" "split" To iSuccess
    Get ComUpdateAttrAt Of hoXmlToSign "DocumentList|Document|FileSignatureList|Encryption|AES" True "block" "16" To iSuccess
    Get ComUpdateAttrAt Of hoXmlToSign "DocumentList|Document|FileSignatureList|Encryption|AES" True "mode" "CBC" To iSuccess
    Get ComUpdateAttrAt Of hoXmlToSign "DocumentList|Document|FileSignatureList|Encryption|AES" True "padding" "PKCS#7" To iSuccess
    Get ComUpdateAttrAt Of hoXmlToSign "DocumentList|Document|FileSignatureList|Encryption|AES" True "size" "256" To iSuccess
    Get ComUpdateAttrAt Of hoXmlToSign "DocumentList|Document|FileSignatureList|Encryption|AES|IV" True "bytes" "16" To iSuccess
    Get ComUpdateAttrAt Of hoXmlToSign "DocumentList|Document|FileSignatureList|Encryption|AES|IV" True "encoding" "Base64" To iSuccess
    Send ComUpdateChildContent To hoXmlToSign "DocumentList|Document|FileSignatureList|Encryption|AES|IV" "FFsCRAPYJD3J6cRvd44UDA=="
    Send ComUpdateChildContent To hoXmlToSign "DocumentList|Document|FileSignatureList|FileSignature|OrdinalNumber" "1"
    Send ComUpdateChildContent To hoXmlToSign "DocumentList|Document|FileSignatureList|FileSignature|FileName" "JPK_VAT_3_v1-1_20181208-000.xml.zip.aes"
    Send ComUpdateChildContent To hoXmlToSign "DocumentList|Document|FileSignatureList|FileSignature|ContentLength" "16"
    Get ComUpdateAttrAt Of hoXmlToSign "DocumentList|Document|FileSignatureList|FileSignature|HashValue" True "algorithm" "MD5" To iSuccess
    Get ComUpdateAttrAt Of hoXmlToSign "DocumentList|Document|FileSignatureList|FileSignature|HashValue" True "encoding" "Base64" To iSuccess
    Send ComUpdateChildContent To hoXmlToSign "DocumentList|Document|FileSignatureList|FileSignature|HashValue" "BX2DTD3ASC/zF6aq/012Cg=="

    // Also see the online tool to generate the code from sample already-signed XML: 
    // Generate XML Signature Creation Code from an Already-Signed XML Sample

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

    Set ComSigLocation Of hoGen To "InitUpload"
    Set ComSigId Of hoGen To "id-1234"
    Set ComSigNamespacePrefix Of hoGen To "ds"
    Set ComSigNamespaceUri Of hoGen To "http://www.w3.org/2000/09/xmldsig#"
    Set ComSignedInfoCanonAlg Of hoGen To "EXCL_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 "Target" "#id-1234" To iSuccess
    Get ComAddAttribute Of hoObject1 "xmlns:xades" "http://uri.etsi.org/01903/v1.3.2#" To iSuccess
    Get ComUpdateAttrAt Of hoObject1 "xades:SignedProperties" True "Id" "xades-id-1234" To iSuccess
    Send ComUpdateChildContent To hoObject1 "xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningTime" "TO BE GENERATED BY CHILKAT"
    Get ComUpdateAttrAt Of hoObject1 "xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|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:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestValue" "TO BE GENERATED BY CHILKAT"
    Send ComUpdateChildContent To hoObject1 "xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:IssuerSerialV2" "TO BE GENERATED BY CHILKAT"
    Get ComUpdateAttrAt Of hoObject1 "xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat" True "ObjectReference" "#r-id-1" To iSuccess
    Send ComUpdateChildContent To hoObject1 "xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:MimeType" "text/xml"

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

    // -------- Reference 1 --------
    Get Create (RefClass(cComChilkatXml)) To hoXml1
    If (Not(IsComObjectCreated(hoXml1))) Begin
        Send CreateComObject of hoXml1
    End
    Set ComTag Of hoXml1 To "ds:Transforms"
    Get ComUpdateAttrAt Of hoXml1 "ds:Transform" True "Algorithm" "http://www.w3.org/TR/1999/REC-xpath-19991116" To iSuccess
    Send ComUpdateChildContent To hoXml1 "ds:Transform|ds:XPath" "not(ancestor-or-self::ds:Signature)"
    Get ComUpdateAttrAt Of hoXml1 "ds:Transform[1]" True "Algorithm" "http://www.w3.org/2001/10/xml-exc-c14n#" To iSuccess

    Get pvComObject of hoXml1 to vXml1
    Get ComAddSameDocRef2 Of hoGen "" "sha256" vXml1 "" To iSuccess
    Get ComSetRefIdAttr Of hoGen "" "r-id-1" To iSuccess

    // -------- Reference 2 --------
    Get Create (RefClass(cComChilkatXml)) To hoXml2
    If (Not(IsComObjectCreated(hoXml2))) Begin
        Send CreateComObject of hoXml2
    End
    Set ComTag Of hoXml2 To "ds:Transforms"
    Get ComUpdateAttrAt Of hoXml2 "ds:Transform" True "Algorithm" "http://www.w3.org/2001/10/xml-exc-c14n#" To iSuccess

    Get pvComObject of hoXml2 to vXml2
    Get ComAddObjectRef2 Of hoGen "xades-id-1234" "sha256" vXml2 "http://uri.etsi.org/01903#SignedProperties" To iSuccess

    // Provide a certificate + private key. (PFX password is test123)
    // See Load Certificate on Smartcard for an example showing how to load the cert from a smartcard..
    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 "Certificate"

    // Load XML to be signed...
    Get Create (RefClass(cComChilkatStringBuilder)) To hoSbXml
    If (Not(IsComObjectCreated(hoSbXml))) Begin
        Send CreateComObject of hoSbXml
    End
    Get pvComObject of hoSbXml to vSbXml
    Get ComGetXmlSb Of hoXmlToSign vSbXml To iSuccess

    Set ComBehaviors Of hoGen To "IndentedSignature,TransformSignatureXPath,IssuerSerialHex"

    // 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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