Visual Basic 6.0
Visual Basic 6.0
XML-DSig Add Object Reference with Transforms Specified Explicitly
Demonstrates how to use the new AddObjectRef2 method to explicitly specify the XML Transforms fragment.Chilkat Visual Basic 6.0 Downloads
Dim success As Long
success = 0
' This example requires the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.
success = 1
' Build the following XML to be signed:
' <?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">xxxx</EncryptionKey>
' <DocumentList>
' <Document>
' <FormCode schemaVersion="1-1" systemCode="JPK_VAT (3)">JPK_VAT</FormCode>
' <FileName>JPK_VAT_3_v1-1_20181201.xml</FileName>
' <ContentLength>8736</ContentLength>
' <HashValue algorithm="SHA-256" encoding="Base64">JEDI1pItwh6dj/Xx1uts/x61qnjZ4DLHpkZMhmf1oKQ=</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">z64oN9zXHt1+S3XACRSCYw==</IV>
' </AES>
' </Encryption>
' <FileSignature>
' <OrdinalNumber>1</OrdinalNumber>
' <FileName>JPK_VAT_3_v1-1_20181201-000.xml.zip.aes</FileName>
' <ContentLength>16</ContentLength>
' <HashValue algorithm="MD5" encoding="Base64">5MX0q1935fvMjLFV7E1yDw==</HashValue>
' </FileSignature>
' </FileSignatureList>
' </Document>
' </DocumentList>
' </InitUpload>
' Use this online tool to generate code from sample XML:
' Generate Code to Create XML
Dim xmlToSign As New ChilkatXml
xmlToSign.Tag = "InitUpload"
success = xmlToSign.AddAttribute("xmlns","http://e-dokumenty.mf.gov.pl")
xmlToSign.UpdateChildContent "DocumentType","JPK"
xmlToSign.UpdateChildContent "Version","01.02.01.20160617"
success = xmlToSign.UpdateAttrAt("EncryptionKey",1,"algorithm","RSA")
success = xmlToSign.UpdateAttrAt("EncryptionKey",1,"encoding","Base64")
success = xmlToSign.UpdateAttrAt("EncryptionKey",1,"mode","ECB")
success = xmlToSign.UpdateAttrAt("EncryptionKey",1,"padding","PKCS#1")
xmlToSign.UpdateChildContent "EncryptionKey","xxxx"
success = xmlToSign.UpdateAttrAt("DocumentList|Document|FormCode",1,"schemaVersion","1-1")
success = xmlToSign.UpdateAttrAt("DocumentList|Document|FormCode",1,"systemCode","JPK_VAT (3)")
xmlToSign.UpdateChildContent "DocumentList|Document|FormCode","JPK_VAT"
xmlToSign.UpdateChildContent "DocumentList|Document|FileName","JPK_VAT_3_v1-1_20181201.xml"
xmlToSign.UpdateChildContent "DocumentList|Document|ContentLength","8736"
success = xmlToSign.UpdateAttrAt("DocumentList|Document|HashValue",1,"algorithm","SHA-256")
success = xmlToSign.UpdateAttrAt("DocumentList|Document|HashValue",1,"encoding","Base64")
xmlToSign.UpdateChildContent "DocumentList|Document|HashValue","JEDI1pItwh6dj/Xx1uts/x61qnjZ4DLHpkZMhmf1oKQ="
success = xmlToSign.UpdateAttrAt("DocumentList|Document|FileSignatureList",1,"filesNumber","1")
success = xmlToSign.UpdateAttrAt("DocumentList|Document|FileSignatureList|Packaging|SplitZip",1,"mode","zip")
success = xmlToSign.UpdateAttrAt("DocumentList|Document|FileSignatureList|Packaging|SplitZip",1,"type","split")
success = xmlToSign.UpdateAttrAt("DocumentList|Document|FileSignatureList|Encryption|AES",1,"block","16")
success = xmlToSign.UpdateAttrAt("DocumentList|Document|FileSignatureList|Encryption|AES",1,"mode","CBC")
success = xmlToSign.UpdateAttrAt("DocumentList|Document|FileSignatureList|Encryption|AES",1,"padding","PKCS#7")
success = xmlToSign.UpdateAttrAt("DocumentList|Document|FileSignatureList|Encryption|AES",1,"size","256")
success = xmlToSign.UpdateAttrAt("DocumentList|Document|FileSignatureList|Encryption|AES|IV",1,"bytes","16")
success = xmlToSign.UpdateAttrAt("DocumentList|Document|FileSignatureList|Encryption|AES|IV",1,"encoding","Base64")
xmlToSign.UpdateChildContent "DocumentList|Document|FileSignatureList|Encryption|AES|IV","z64oN9zXHt1+S3XACRSCYw=="
xmlToSign.UpdateChildContent "DocumentList|Document|FileSignatureList|FileSignature|OrdinalNumber","1"
xmlToSign.UpdateChildContent "DocumentList|Document|FileSignatureList|FileSignature|FileName","JPK_VAT_3_v1-1_20181201-000.xml.zip.aes"
xmlToSign.UpdateChildContent "DocumentList|Document|FileSignatureList|FileSignature|ContentLength","16"
success = xmlToSign.UpdateAttrAt("DocumentList|Document|FileSignatureList|FileSignature|HashValue",1,"algorithm","MD5")
success = xmlToSign.UpdateAttrAt("DocumentList|Document|FileSignatureList|FileSignature|HashValue",1,"encoding","Base64")
xmlToSign.UpdateChildContent "DocumentList|Document|FileSignatureList|FileSignature|HashValue","5MX0q1935fvMjLFV7E1yDw=="
Dim gen As New ChilkatXmlDSigGen
gen.SigLocation = "InitUpload"
gen.SigLocationMod = 0
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.
' <xades:QualifyingProperties Target="#id-1234" xmlns:xades="http://uri.etsi.org/01903/v1.3.2#">
' <xades:SignedProperties Id="xades-id-1234">
' <xades:SignedSignatureProperties>
' <xades:SigningTime>TO BE GENERATED BY CHILKAT</xades:SigningTime>
' <xades:SigningCertificate>
' <xades:Cert>
' <xades:CertDigest>
' <ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"/>
' <ds:DigestValue>TO BE GENERATED BY CHILKAT</ds:DigestValue>
' </xades:CertDigest>
' <xades:IssuerSerial>
' <ds:X509IssuerName>TO BE GENERATED BY CHILKAT</ds:X509IssuerName>
' <ds:X509SerialNumber>TO BE GENERATED BY CHILKAT</ds:X509SerialNumber>
' </xades:IssuerSerial>
' </xades:Cert>
' </xades:SigningCertificate>
' </xades:SignedSignatureProperties>
' <xades:SignedDataObjectProperties>
' <xades:DataObjectFormat ObjectReference="#r-id-1">
' <xades:MimeType>text/xml</xades:MimeType>
' </xades:DataObjectFormat>
' </xades:SignedDataObjectProperties>
' </xades:SignedProperties>
' </xades:QualifyingProperties>
Dim object1 As New ChilkatXml
object1.Tag = "xades:QualifyingProperties"
success = object1.AddAttribute("xmlns:xades","http://uri.etsi.org/01903/v1.3.2#")
success = object1.AddAttribute("Target","#id-1234")
success = object1.UpdateAttrAt("xades:SignedProperties",1,"Id","xades-id-1234")
' Note: It may be that http://www.w3.org/2001/04/xmlenc#sha256 is needed in the following line instead of http://www.w3.org/2000/09/xmldsig#sha1
object1.UpdateChildContent "xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningTime","TO BE GENERATED BY CHILKAT"
success = object1.UpdateAttrAt("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestMethod",1,"Algorithm","http://www.w3.org/2000/09/xmldsig#sha1")
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"
success = object1.UpdateAttrAt("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat",1,"ObjectReference","#r-id-1")
object1.UpdateChildContent "xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:MimeType","text/xml"
success = gen.AddObject("",object1.GetXml(),"","")
' -------- Reference 1 --------
' Build the following Transforms fragment:
' <ds:Transforms>
' <ds:Transform Algorithm="http://www.w3.org/TR/1999/REC-xpath-19991116">
' <ds:XPath>not(ancestor-or-self::ds:Signature)</ds:XPath>
' </ds:Transform>
' <ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
' </ds:Transforms>
Dim xml1 As New ChilkatXml
xml1.Tag = "ds:Transforms"
success = xml1.UpdateAttrAt("ds:Transform",1,"Algorithm","http://www.w3.org/TR/1999/REC-xpath-19991116")
xml1.UpdateChildContent "ds:Transform|ds:XPath","not(ancestor-or-self::ds:Signature)"
success = xml1.UpdateAttrAt("ds:Transform[1]",1,"Algorithm","http://www.w3.org/2001/10/xml-exc-c14n#")
success = gen.AddSameDocRef2("","sha256",xml1,"")
success = gen.SetRefIdAttr("","r-id-1")
' -------- Reference 2 --------
' Build the following Transforms fragment:
' <ds:Transforms>
' <ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
' </ds:Transforms>
Dim xml2 As New ChilkatXml
xml2.Tag = "ds:Transforms"
success = xml2.UpdateAttrAt("ds:Transform",1,"Algorithm","http://www.w3.org/2001/10/xml-exc-c14n#")
success = gen.AddObjectRef2("xades-id-1234","sha256",xml2,"http://uri.etsi.org/01903#SignedProperties")
' Provide a certificate + private key. (PFX password is test123)
Dim cert As New ChilkatCert
success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123")
If (success <> 1) Then
Debug.Print cert.LastErrorText
Exit Sub
End If
success = gen.SetX509Cert(cert,1)
gen.KeyInfoType = "X509Data"
gen.X509Type = "Certificate"
' Load XML to be signed...
Dim sbXml As New ChilkatStringBuilder
success = xmlToSign.GetXmlSb(sbXml)
gen.Behaviors = "IndentedSignature"
' Sign the XML...
success = gen.CreateXmlDSigSb(sbXml)
If (success <> 1) Then
Debug.Print gen.LastErrorText
Exit Sub
End If
' -----------------------------------------------
' Save the signed XML to a file.
success = sbXml.WriteFile("qa_output/signedXml.xml","utf-8",0)
Debug.Print sbXml.GetAsString()
' ----------------------------------------
' Verify the signatures we just produced...
Dim verifier As New ChilkatXmlDSig
success = verifier.LoadSignatureSb(sbXml)
If (success <> 1) Then
Debug.Print verifier.LastErrorText
Exit Sub
End If
Dim numSigs As Long
numSigs = verifier.NumSignatures
Dim verifyIdx As Long
verifyIdx = 0
Do While verifyIdx < numSigs
verifier.Selector = verifyIdx
Dim verified As Long
verified = verifier.VerifySignature(1)
If (verified <> 1) Then
Debug.Print verifier.LastErrorText
Exit Sub
End If
verifyIdx = verifyIdx + 1
Loop
Debug.Print "All signatures were successfully verified."