(PHP Extension) Create JPK_VAT XaDES-BES Signed XML

Demonstrates how to sign XML for JPK_VAT.

Chilkat PHP Downloads PHP Extension for Windows, Linux, MacOS, Alpine Linux, Solaris

<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

// 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

$success = true;
$xmlToSign = new CkXml();
$xmlToSign->put_Tag('InitUpload');
$xmlToSign->AddAttribute('xmlns','http://e-dokumenty.mf.gov.pl');
$xmlToSign->UpdateChildContent('DocumentType','JPK');
$xmlToSign->UpdateChildContent('Version','01.02.01.20160617');
$xmlToSign->UpdateAttrAt('EncryptionKey',true,'algorithm','RSA');
$xmlToSign->UpdateAttrAt('EncryptionKey',true,'encoding','Base64');
$xmlToSign->UpdateAttrAt('EncryptionKey',true,'mode','ECB');
$xmlToSign->UpdateAttrAt('EncryptionKey',true,'padding','PKCS#1');
$xmlToSign->UpdateChildContent('EncryptionKey','...');
$xmlToSign->UpdateAttrAt('DocumentList|Document|FormCode',true,'schemaVersion','1-1');
$xmlToSign->UpdateAttrAt('DocumentList|Document|FormCode',true,'systemCode','JPK_VAT (3)');
$xmlToSign->UpdateChildContent('DocumentList|Document|FormCode','JPK_VAT');
$xmlToSign->UpdateChildContent('DocumentList|Document|FileName','JPK_VAT_3_v1-1_20181208.xml');
$xmlToSign->UpdateChildContent('DocumentList|Document|ContentLength','8736');
$xmlToSign->UpdateAttrAt('DocumentList|Document|HashValue',true,'algorithm','SHA-256');
$xmlToSign->UpdateAttrAt('DocumentList|Document|HashValue',true,'encoding','Base64');
$xmlToSign->UpdateChildContent('DocumentList|Document|HashValue','JEEI1pItwh6dj/Xe1uts/x61qnjZ4DLHpkRMhmf1oQQ=');
$xmlToSign->UpdateAttrAt('DocumentList|Document|FileSignatureList',true,'filesNumber','1');
$xmlToSign->UpdateAttrAt('DocumentList|Document|FileSignatureList|Packaging|SplitZip',true,'mode','zip');
$xmlToSign->UpdateAttrAt('DocumentList|Document|FileSignatureList|Packaging|SplitZip',true,'type','split');
$xmlToSign->UpdateAttrAt('DocumentList|Document|FileSignatureList|Encryption|AES',true,'block','16');
$xmlToSign->UpdateAttrAt('DocumentList|Document|FileSignatureList|Encryption|AES',true,'mode','CBC');
$xmlToSign->UpdateAttrAt('DocumentList|Document|FileSignatureList|Encryption|AES',true,'padding','PKCS#7');
$xmlToSign->UpdateAttrAt('DocumentList|Document|FileSignatureList|Encryption|AES',true,'size','256');
$xmlToSign->UpdateAttrAt('DocumentList|Document|FileSignatureList|Encryption|AES|IV',true,'bytes','16');
$xmlToSign->UpdateAttrAt('DocumentList|Document|FileSignatureList|Encryption|AES|IV',true,'encoding','Base64');
$xmlToSign->UpdateChildContent('DocumentList|Document|FileSignatureList|Encryption|AES|IV','FFsCRAPYJD3J6cRvd44UDA==');
$xmlToSign->UpdateChildContent('DocumentList|Document|FileSignatureList|FileSignature|OrdinalNumber','1');
$xmlToSign->UpdateChildContent('DocumentList|Document|FileSignatureList|FileSignature|FileName','JPK_VAT_3_v1-1_20181208-000.xml.zip.aes');
$xmlToSign->UpdateChildContent('DocumentList|Document|FileSignatureList|FileSignature|ContentLength','16');
$xmlToSign->UpdateAttrAt('DocumentList|Document|FileSignatureList|FileSignature|HashValue',true,'algorithm','MD5');
$xmlToSign->UpdateAttrAt('DocumentList|Document|FileSignatureList|FileSignature|HashValue',true,'encoding','Base64');
$xmlToSign->UpdateChildContent('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

$gen = new CkXmlDSigGen();

$gen->put_SigLocation('InitUpload');
$gen->put_SigId('id-1234');
$gen->put_SigNamespacePrefix('ds');
$gen->put_SigNamespaceUri('http://www.w3.org/2000/09/xmldsig#');
$gen->put_SignedInfoCanonAlg('EXCL_C14N');
$gen->put_SignedInfoDigestMethod('sha256');

// Create an Object to be added to the Signature.
$object1 = new CkXml();
$object1->put_Tag('xades:QualifyingProperties');
$object1->AddAttribute('Target','#id-1234');
$object1->AddAttribute('xmlns:xades','http://uri.etsi.org/01903/v1.3.2#');
$object1->UpdateAttrAt('xades:SignedProperties',true,'Id','xades-id-1234');
$object1->UpdateChildContent('xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningTime','TO BE GENERATED BY CHILKAT');
$object1->UpdateAttrAt('xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:CertDigest|ds:DigestMethod',true,'Algorithm','http://www.w3.org/2001/04/xmlenc#sha256');
$object1->UpdateChildContent('xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:CertDigest|ds:DigestValue','TO BE GENERATED BY CHILKAT');
$object1->UpdateChildContent('xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:IssuerSerial|ds:X509IssuerName','TO BE GENERATED BY CHILKAT');
$object1->UpdateChildContent('xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert|xades:IssuerSerial|ds:X509SerialNumber','TO BE GENERATED BY CHILKAT');
$object1->UpdateAttrAt('xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat',true,'ObjectReference','#r-id-1');
$object1->UpdateChildContent('xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:MimeType','text/xml');

$gen->AddObject('',$object1->getXml(),'','');

// -------- Reference 1 --------
$xml1 = new CkXml();
$xml1->put_Tag('ds:Transforms');
$xml1->UpdateAttrAt('ds:Transform',true,'Algorithm','http://www.w3.org/TR/1999/REC-xpath-19991116');
$xml1->UpdateChildContent('ds:Transform|ds:XPath','not(ancestor-or-self::ds:Signature)');
$xml1->UpdateAttrAt('ds:Transform[1]',true,'Algorithm','http://www.w3.org/2001/10/xml-exc-c14n#');

$gen->AddSameDocRef2('','sha256',$xml1,'');
$gen->SetRefIdAttr('','r-id-1');

// -------- Reference 2 --------
$xml2 = new CkXml();
$xml2->put_Tag('ds:Transforms');
$xml2->UpdateAttrAt('ds:Transform',true,'Algorithm','http://www.w3.org/2001/10/xml-exc-c14n#');

$gen->AddObjectRef2('xades-id-1234','sha256',$xml2,'http://uri.etsi.org/01903#SignedProperties');

// 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..
$cert = new CkCert();
$success = $cert->LoadPfxFile('qa_data/pfx/cert_test123.pfx','test123');
if ($success != true) {
    print $cert->lastErrorText() . "\n";
    exit;
}

$gen->SetX509Cert($cert,true);

$gen->put_KeyInfoType('X509Data');
$gen->put_X509Type('Certificate');

// Load XML to be signed...
$sbXml = new CkStringBuilder();
$xmlToSign->GetXmlSb($sbXml);

$gen->put_Behaviors('IndentedSignature,TransformSignatureXPath,IssuerSerialHex');

// Sign the XML...
$success = $gen->CreateXmlDSigSb($sbXml);
if ($success != true) {
    print $gen->lastErrorText() . "\n";
    exit;
}

// Save the signed XMl to a file.
$success = $sbXml->WriteFile('qa_output/signedXml.xml','utf-8',false);

print $sbXml->getAsString() . "\n";

// ----------------------------------------
// Verify the signature we just produced...
$verifier = new CkXmlDSig();
$success = $verifier->LoadSignatureSb($sbXml);
if ($success != true) {
    print $verifier->lastErrorText() . "\n";
    exit;
}

$verified = $verifier->VerifySignature(true);
if ($verified != true) {
    print $verifier->lastErrorText() . "\n";
    exit;
}

print 'This signature was successfully verified.' . "\n";

?>