Sample code for 30+ languages & platforms
Java

Create JPK_VAT XaDES-BES Signed XML

See more XAdES Examples

Demonstrates how to sign XML for JPK_VAT.

Chilkat Java Downloads

Chilkat2 Java
import com.chilkatsoft.chilkat2.Cert;
import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.StringBuilder;
import com.chilkatsoft.chilkat2.Xml;
import com.chilkatsoft.chilkat2.XmlDSig;
import com.chilkatsoft.chilkat2.XmlDSigGen;

public class ChilkatExample {

    public static void main(String[] args) {
        boolean success = false;

        // 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;
        Xml xmlToSign = new Xml();
        xmlToSign.setTag("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

        XmlDSigGen gen = new XmlDSigGen();

        gen.setSigLocation("InitUpload");
        gen.setSigId("id-1234");
        gen.setSigNamespacePrefix("ds");
        gen.setSigNamespaceUri("http://www.w3.org/2000/09/xmldsig#");
        gen.setSignedInfoCanonAlg("EXCL_C14N");
        gen.setSignedInfoDigestMethod("sha256");

        // Create an Object to be added to the Signature.
        Xml object1 = new Xml();
        object1.setTag("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:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestMethod", true, "Algorithm", "http://www.w3.org/2001/04/xmlenc#sha256");
        object1.updateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestValue", "TO BE GENERATED BY CHILKAT");
        object1.updateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:IssuerSerialV2", "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 --------
        Xml xml1 = new Xml();
        xml1.setTag("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 --------
        Xml xml2 = new Xml();
        xml2.setTag("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 cert = new Cert();
        try {
            cert.loadPfxFile("qa_data/pfx/cert_test123.pfx", "test123");
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        gen.setX509Cert(cert, true);

        gen.setKeyInfoType("X509Data");
        gen.setX509Type("Certificate");

        // Load XML to be signed...
        StringBuilder sbXml = new StringBuilder();
        xmlToSign.getXmlSb(sbXml);

        gen.setBehaviors("IndentedSignature,TransformSignatureXPath,IssuerSerialHex");

        // Sign the XML...
        try {
            gen.createXmlDSigSb(sbXml);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        // Save the signed XMl to a file.
        sbXml.writeFile("qa_output/signedXml.xml", "utf-8", false);

        System.out.println(sbXml.getAsString());

        // ----------------------------------------
        // Verify the signature we just produced...
        XmlDSig verifier = new XmlDSig();
        try {
            verifier.loadSignatureSb(sbXml);

            verifier.verifySignature(true);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        System.out.println("This signature was successfully verified.");
    }
}