B4X
B4X
Create JPK_VAT XaDES-BES Signed XML
See more XAdES Examples
Demonstrates how to sign XML for JPK_VAT.Chilkat B4X Downloads
Dim success As Boolean = 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
Dim xmlToSign As ChilkatXml
xmlToSign.Initialize
xmlToSign.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
Dim gen As ChilkatXmlDSigGen
gen.Initialize("gen")
gen.SigLocation = "InitUpload"
gen.SigId = "id-1234"
gen.SigNamespacePrefix = "ds"
gen.SigNamespaceUri = "http://www.w3.org/2000/09/xmldsig#"
gen.SignedInfoCanonAlg = "EXCL_C14N"
gen.SignedInfoDigestMethod = "sha256"
' Create an Object to be added to the Signature.
Dim object1 As ChilkatXml
object1.Initialize
object1.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: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 --------
Dim xml1 As ChilkatXml
xml1.Initialize
xml1.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 --------
Dim xml2 As ChilkatXml
xml2.Initialize
xml2.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..
Dim cert As ChilkatCert
cert.Initialize("cert")
success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx", "test123")
If success <> True Then
Log(cert.LastErrorText)
Return
End If
gen.SetX509Cert(cert, True)
gen.KeyInfoType = "X509Data"
gen.X509Type = "Certificate"
' Load XML to be signed...
Dim sbXml As ChilkatStringBuilder
sbXml.Initialize
xmlToSign.GetXmlSb(sbXml)
gen.Behaviors = "IndentedSignature,TransformSignatureXPath,IssuerSerialHex"
' Sign the XML...
success = gen.CreateXmlDSigSb(sbXml)
If success <> True Then
Log(gen.LastErrorText)
Return
End If
' Save the signed XMl to a file.
success = sbXml.WriteFile("qa_output/signedXml.xml", "utf-8", False)
Log(sbXml.GetAsString)
' ----------------------------------------
' Verify the signature we just produced...
Dim verifier As ChilkatXmlDSig
verifier.Initialize
success = verifier.LoadSignatureSb(sbXml)
If success <> True Then
Log(verifier.LastErrorText)
Return
End If
Dim verified As Boolean = verifier.VerifySignature(True)
If verified <> True Then
Log(verifier.LastErrorText)
Return
End If
Log("This signature was successfully verified.")