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(VB.NET) Cape Verde Fatura Eletrónica XML Digital Signature

See more XML Digital Signatures Examples

Demonstrates how to sign XML to create a signed invoice compatible with the Cape Verde Fatura Eletrónica requirements.

Note: This example requires Chilkat v9.5.0.89 or greater for a small feature to provide the ability produce mult-line base64 signature ending with 

Chilkat .NET Downloads

Chilkat .NET Framework

Chilkat for .NET Core

' This example assumes the Chilkat API to have been previously unlocked.
' See Global Unlock Sample for sample code.


' First create the following XML to be signed.  This can be created programmatically as shown in the code below, or 
' you can simply load the XML to be signed from a file..

' <?xml version="1.0" encoding="utf-8"?>
' <Dfe xmlns="urn:cv:efatura:xsd:v1.0" DocumentTypeCode="1" Id="CV2210818123456789000010100000000546735014601" Version="1.0">
'     <Invoice>
'         <LedCode>1</LedCode>
'         <Serie>SL</Serie>
'         <DocumentNumber>5</DocumentNumber>
'         <IssueDate>2021-08-30</IssueDate>
'         <IssueTime>00:01:00</IssueTime>
'         <TaxPointDate>2021-08-18</TaxPointDate>
'         <EmitterParty>
'             <TaxId CountryCode="CV">123456789</TaxId>
'             <Name>Maria</Name>
'             <Address CountryCode="CV">
'                 <State>Estado do Emissor</State>
'                 <City>Cidade do Emissor</City>
'                 <Region>Regio do Emissor</Region>
'                 <Street>Rua do Emissor</Street>
'                 <StreetDetail>Detalhe da rua do Emissor</StreetDetail>
'                 <BuildingName>Prdio do Emissor</BuildingName>
'                 <BuildingNumber>1</BuildingNumber>
'                 <BuildingFloor>2</BuildingFloor>
'                 <PostalCode>7600</PostalCode>
'                 <AddressDetail>Detalhe de endereo do Emissor</AddressDetail>
'                 <AddressCode>CV774999999999999319</AddressCode>
'             </Address>
'             <Contacts>
'                 <Telephone>1234567</Telephone>
'                 <Mobilephone>1234568</Mobilephone>
'                 <Telefax>1234569</Telefax>
'                 <Email>somebody@example.com</Email>
'                 <Website>emissor.efatura.cv</Website>
'             </Contacts>
'         </EmitterParty>
'         <ReceiverParty>
'             <TaxId CountryCode="CV">123456789</TaxId>
'             <Name>Nome do Recetor</Name>
'             <Address CountryCode="CV">
'                 <State>Estado do Recetor</State>
'                 <City>Cidade do Recetor</City>
'                 <Region>Regio do Recetor</Region>
'                 <Street>Rua do Recetor</Street>
'                 <StreetDetail>Detalhe da rua do Recetor</StreetDetail>
'                 <BuildingName>Prdio do Recetor</BuildingName>
'                 <BuildingNumber>2</BuildingNumber>
'                 <BuildingFloor>3</BuildingFloor>
'                 <PostalCode>7601</PostalCode>
'                 <AddressDetail>Detalhe de endereo do Recetor</AddressDetail>
'                 <AddressCode>CV774999999999999319</AddressCode>
'             </Address>
'             <Contacts>
'                 <Telephone>2234567</Telephone>
'                 <Mobilephone>2234568</Mobilephone>
'                 <Telefax>2234569</Telefax>
'                 <Email>rector@efatura.cv</Email>
'                 <Website>rector.efatura.cv</Website>
'             </Contacts>
'         </ReceiverParty>
'         <Lines>
'             <Line LineTypeCode="N">
'                 <Id>01</Id>
'                 <OrderLineReference>1</OrderLineReference>
'                 <Quantity UnitCode="EA">3.15</Quantity>
'                 <Price>123456</Price>
'                 <PriceExtension>388886</PriceExtension>
'                 <Discount>15</Discount>
'                 <NetTotal>252776</NetTotal>
'                 <Tax TaxTypeCode="IVA">
'                     <TaxPercentage>15</TaxPercentage>
'                 </Tax>
'                 <Item>
'                     <Description>Telemvel</Description>
'                     <Name>Telemvel</Name>
'                     <BrandName>Apple</BrandName>
'                     <ModelName>iPhone X</ModelName>
'                     <EmitterIdentification>TLMV</EmitterIdentification>
'                     <StandardIdentification>
'                         <GTIN>12345</GTIN>
'                     </StandardIdentification>
'                     <HazardousRiskIndicator>false</HazardousRiskIndicator>
'                 </Item>
'             </Line>
'         </Lines>
'         <Totals>
'             <PriceExtensionTotalAmount>388886</PriceExtensionTotalAmount>
'             <ChargeTotalAmount>0</ChargeTotalAmount>
'             <DiscountTotalAmount>136110</DiscountTotalAmount>
'             <NetTotalAmount>252776</NetTotalAmount>
'             <Discount ValueType="P">20</Discount>
'             <TaxTotalAmount>37916</TaxTotalAmount>
'             <PayableAmount>290692</PayableAmount>
'         </Totals>
'         <References>
'             <Reference>
'                 <FiscalDocument IsOldDocument="false">CV1200520123456789000112345678901112345678901</FiscalDocument>
'                 <PaymentAmount>12345</PaymentAmount>
'                 <Tax TaxTypeCode="IR">
'                     <TaxPercentage>10</TaxPercentage>
'                 </Tax>
'             </Reference>
'             <Reference>
'                 <FiscalDocument IsOldDocument="false">CV1200520123456789000112345678901112345678903</FiscalDocument>
'                 <PaymentAmount>98765</PaymentAmount>
'                 <Tax TaxTypeCode="IVA">
'                     <TaxPercentage>15</TaxPercentage>
'                 </Tax>
'             </Reference>
'         </References>
'         <Payments>
'             <PaymentDueDate>2021-12-31</PaymentDueDate>
'             <PaymentTerms>
'                 <Note>Juros de 12% a partir da data de vencimento</Note>
'             </PaymentTerms>
'             <PayeeFinancialAccount>
'                 <NIB>123456789012345678901</NIB>
'                 <Name>Nome da Conta 1</Name>
'             </PayeeFinancialAccount>
'             <PayeeFinancialAccount>
'                 <NIB>123456789012345678902</NIB>
'                 <Name>Nome da Conta 2</Name>
'             </PayeeFinancialAccount>
'         </Payments>
'         <Note>Texto livre</Note>
'     </Invoice>
'     <Transmission>
'         <IssueMode>2</IssueMode>
'         <TransmitterTaxId CountryCode="CV">123456789</TransmitterTaxId>
'         <Software>
'             <Code>EMIPUB</Code>
'             <Name>DNRE Emissor Pblico</Name>
'             <Version>Build #53 12-07-2021 14:00:47 CVT - master</Version>
'         </Software>
'         <Contingency>
'             <LedCode>1</LedCode>
'             <IssueDate>2020-01-01</IssueDate>
'             <IssueTime>01:02:03</IssueTime>
'             <ReasonTypeCode>1</ReasonTypeCode>
'         </Contingency>
'     </Transmission>
'     <RepositoryCode>2</RepositoryCode>
' </Dfe>



Dim success As Boolean = True

' Create the XML to be signed...

' Use this online tool to generate code from sample XML: 
' Generate Code to Create XML

Dim xmlToSign As New Chilkat.Xml
xmlToSign.Tag = "Dfe"
xmlToSign.AddAttribute("xmlns","urn:cv:efatura:xsd:v1.0")
xmlToSign.AddAttribute("DocumentTypeCode","1")
xmlToSign.AddAttribute("Id","CV2210818123456789000010100000000546735014601")
xmlToSign.AddAttribute("Version","1.0")
xmlToSign.UpdateChildContent("Invoice|LedCode","1")
xmlToSign.UpdateChildContent("Invoice|Serie","SL")
xmlToSign.UpdateChildContent("Invoice|DocumentNumber","5")
xmlToSign.UpdateChildContent("Invoice|IssueDate","2021-08-30")
xmlToSign.UpdateChildContent("Invoice|IssueTime","00:01:00")
xmlToSign.UpdateChildContent("Invoice|TaxPointDate","2021-08-18")
xmlToSign.UpdateAttrAt("Invoice|EmitterParty|TaxId",True,"CountryCode","CV")
xmlToSign.UpdateChildContent("Invoice|EmitterParty|TaxId","123456789")
xmlToSign.UpdateChildContent("Invoice|EmitterParty|Name","Maria")
xmlToSign.UpdateAttrAt("Invoice|EmitterParty|Address",True,"CountryCode","CV")
xmlToSign.UpdateChildContent("Invoice|EmitterParty|Address|State","Estado do Emissor")
xmlToSign.UpdateChildContent("Invoice|EmitterParty|Address|City","Cidade do Emissor")
xmlToSign.UpdateChildContent("Invoice|EmitterParty|Address|Region","Regio do Emissor")
xmlToSign.UpdateChildContent("Invoice|EmitterParty|Address|Street","Rua do Emissor")
xmlToSign.UpdateChildContent("Invoice|EmitterParty|Address|StreetDetail","Detalhe da rua do Emissor")
xmlToSign.UpdateChildContent("Invoice|EmitterParty|Address|BuildingName","Prdio do Emissor")
xmlToSign.UpdateChildContent("Invoice|EmitterParty|Address|BuildingNumber","1")
xmlToSign.UpdateChildContent("Invoice|EmitterParty|Address|BuildingFloor","2")
xmlToSign.UpdateChildContent("Invoice|EmitterParty|Address|PostalCode","7600")
xmlToSign.UpdateChildContent("Invoice|EmitterParty|Address|AddressDetail","Detalhe de endereo do Emissor")
xmlToSign.UpdateChildContent("Invoice|EmitterParty|Address|AddressCode","CV774999999999999319")
xmlToSign.UpdateChildContent("Invoice|EmitterParty|Contacts|Telephone","1234567")
xmlToSign.UpdateChildContent("Invoice|EmitterParty|Contacts|Mobilephone","1234568")
xmlToSign.UpdateChildContent("Invoice|EmitterParty|Contacts|Telefax","1234569")
xmlToSign.UpdateChildContent("Invoice|EmitterParty|Contacts|Email","somebody@example.com")
xmlToSign.UpdateChildContent("Invoice|EmitterParty|Contacts|Website","emissor.efatura.cv")
xmlToSign.UpdateAttrAt("Invoice|ReceiverParty|TaxId",True,"CountryCode","CV")
xmlToSign.UpdateChildContent("Invoice|ReceiverParty|TaxId","123456789")
xmlToSign.UpdateChildContent("Invoice|ReceiverParty|Name","Nome do Recetor")
xmlToSign.UpdateAttrAt("Invoice|ReceiverParty|Address",True,"CountryCode","CV")
xmlToSign.UpdateChildContent("Invoice|ReceiverParty|Address|State","Estado do Recetor")
xmlToSign.UpdateChildContent("Invoice|ReceiverParty|Address|City","Cidade do Recetor")
xmlToSign.UpdateChildContent("Invoice|ReceiverParty|Address|Region","Regio do Recetor")
xmlToSign.UpdateChildContent("Invoice|ReceiverParty|Address|Street","Rua do Recetor")
xmlToSign.UpdateChildContent("Invoice|ReceiverParty|Address|StreetDetail","Detalhe da rua do Recetor")
xmlToSign.UpdateChildContent("Invoice|ReceiverParty|Address|BuildingName","Prdio do Recetor")
xmlToSign.UpdateChildContent("Invoice|ReceiverParty|Address|BuildingNumber","2")
xmlToSign.UpdateChildContent("Invoice|ReceiverParty|Address|BuildingFloor","3")
xmlToSign.UpdateChildContent("Invoice|ReceiverParty|Address|PostalCode","7601")
xmlToSign.UpdateChildContent("Invoice|ReceiverParty|Address|AddressDetail","Detalhe de endereo do Recetor")
xmlToSign.UpdateChildContent("Invoice|ReceiverParty|Address|AddressCode","CV774999999999999319")
xmlToSign.UpdateChildContent("Invoice|ReceiverParty|Contacts|Telephone","2234567")
xmlToSign.UpdateChildContent("Invoice|ReceiverParty|Contacts|Mobilephone","2234568")
xmlToSign.UpdateChildContent("Invoice|ReceiverParty|Contacts|Telefax","2234569")
xmlToSign.UpdateChildContent("Invoice|ReceiverParty|Contacts|Email","rector@efatura.cv")
xmlToSign.UpdateChildContent("Invoice|ReceiverParty|Contacts|Website","rector.efatura.cv")
xmlToSign.UpdateAttrAt("Invoice|Lines|Line",True,"LineTypeCode","N")
xmlToSign.UpdateChildContent("Invoice|Lines|Line|Id","01")
xmlToSign.UpdateChildContent("Invoice|Lines|Line|OrderLineReference","1")
xmlToSign.UpdateAttrAt("Invoice|Lines|Line|Quantity",True,"UnitCode","EA")
xmlToSign.UpdateChildContent("Invoice|Lines|Line|Quantity","3.15")
xmlToSign.UpdateChildContent("Invoice|Lines|Line|Price","123456")
xmlToSign.UpdateChildContent("Invoice|Lines|Line|PriceExtension","388886")
xmlToSign.UpdateChildContent("Invoice|Lines|Line|Discount","15")
xmlToSign.UpdateChildContent("Invoice|Lines|Line|NetTotal","252776")
xmlToSign.UpdateAttrAt("Invoice|Lines|Line|Tax",True,"TaxTypeCode","IVA")
xmlToSign.UpdateChildContent("Invoice|Lines|Line|Tax|TaxPercentage","15")
xmlToSign.UpdateChildContent("Invoice|Lines|Line|Item|Description","Telemvel")
xmlToSign.UpdateChildContent("Invoice|Lines|Line|Item|Name","Telemvel")
xmlToSign.UpdateChildContent("Invoice|Lines|Line|Item|BrandName","Apple")
xmlToSign.UpdateChildContent("Invoice|Lines|Line|Item|ModelName","iPhone X")
xmlToSign.UpdateChildContent("Invoice|Lines|Line|Item|EmitterIdentification","TLMV")
xmlToSign.UpdateChildContent("Invoice|Lines|Line|Item|StandardIdentification|GTIN","12345")
xmlToSign.UpdateChildContent("Invoice|Lines|Line|Item|HazardousRiskIndicator","false")
xmlToSign.UpdateChildContent("Invoice|Totals|PriceExtensionTotalAmount","388886")
xmlToSign.UpdateChildContent("Invoice|Totals|ChargeTotalAmount","0")
xmlToSign.UpdateChildContent("Invoice|Totals|DiscountTotalAmount","136110")
xmlToSign.UpdateChildContent("Invoice|Totals|NetTotalAmount","252776")
xmlToSign.UpdateAttrAt("Invoice|Totals|Discount",True,"ValueType","P")
xmlToSign.UpdateChildContent("Invoice|Totals|Discount","20")
xmlToSign.UpdateChildContent("Invoice|Totals|TaxTotalAmount","37916")
xmlToSign.UpdateChildContent("Invoice|Totals|PayableAmount","290692")
xmlToSign.UpdateAttrAt("Invoice|References|Reference|FiscalDocument",True,"IsOldDocument","false")
xmlToSign.UpdateChildContent("Invoice|References|Reference|FiscalDocument","CV1200520123456789000112345678901112345678901")
xmlToSign.UpdateChildContent("Invoice|References|Reference|PaymentAmount","12345")
xmlToSign.UpdateAttrAt("Invoice|References|Reference|Tax",True,"TaxTypeCode","IR")
xmlToSign.UpdateChildContent("Invoice|References|Reference|Tax|TaxPercentage","10")
xmlToSign.UpdateAttrAt("Invoice|References|Reference[1]|FiscalDocument",True,"IsOldDocument","false")
xmlToSign.UpdateChildContent("Invoice|References|Reference[1]|FiscalDocument","CV1200520123456789000112345678901112345678903")
xmlToSign.UpdateChildContent("Invoice|References|Reference[1]|PaymentAmount","98765")
xmlToSign.UpdateAttrAt("Invoice|References|Reference[1]|Tax",True,"TaxTypeCode","IVA")
xmlToSign.UpdateChildContent("Invoice|References|Reference[1]|Tax|TaxPercentage","15")
xmlToSign.UpdateChildContent("Invoice|Payments|PaymentDueDate","2021-12-31")
xmlToSign.UpdateChildContent("Invoice|Payments|PaymentTerms|Note","Juros de 12% a partir da data de vencimento")
xmlToSign.UpdateChildContent("Invoice|Payments|PayeeFinancialAccount|NIB","123456789012345678901")
xmlToSign.UpdateChildContent("Invoice|Payments|PayeeFinancialAccount|Name","Nome da Conta 1")
xmlToSign.UpdateChildContent("Invoice|Payments|PayeeFinancialAccount[1]|NIB","123456789012345678902")
xmlToSign.UpdateChildContent("Invoice|Payments|PayeeFinancialAccount[1]|Name","Nome da Conta 2")
xmlToSign.UpdateChildContent("Invoice|Note","Texto livre")
xmlToSign.UpdateChildContent("Transmission|IssueMode","2")
xmlToSign.UpdateAttrAt("Transmission|TransmitterTaxId",True,"CountryCode","CV")
xmlToSign.UpdateChildContent("Transmission|TransmitterTaxId","123456789")
xmlToSign.UpdateChildContent("Transmission|Software|Code","EMIPUB")
xmlToSign.UpdateChildContent("Transmission|Software|Name","DNRE Emissor Pblico")
xmlToSign.UpdateChildContent("Transmission|Software|Version","Build #53 12-07-2021 14:00:47 CVT - master")
xmlToSign.UpdateChildContent("Transmission|Contingency|LedCode","1")
xmlToSign.UpdateChildContent("Transmission|Contingency|IssueDate","2020-01-01")
xmlToSign.UpdateChildContent("Transmission|Contingency|IssueTime","01:02:03")
xmlToSign.UpdateChildContent("Transmission|Contingency|ReasonTypeCode","1")
xmlToSign.UpdateChildContent("RepositoryCode","2")


Dim gen As New Chilkat.XmlDSigGen

gen.SigLocation = "Dfe"
gen.SigLocationMod = 0
gen.SigId = "xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac"
gen.SigNamespacePrefix = "ds"
gen.SigNamespaceUri = "http://www.w3.org/2000/09/xmldsig#"
gen.SigValueId = "xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-sigvalue"
gen.SignedInfoCanonAlg = "C14N"
gen.SignedInfoDigestMethod = "sha256"

' Set the KeyInfoId before adding references..
gen.KeyInfoId = "xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-keyinfo"

' Create an Object to be added to the Signature.
Dim object1 As New Chilkat.Xml
object1.Tag = "xades:QualifyingProperties"
object1.AddAttribute("xmlns:xades","http://uri.etsi.org/01903/v1.3.2#")
object1.AddAttribute("xmlns:xades141","http://uri.etsi.org/01903/v1.4.1#")
object1.AddAttribute("Target","#xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac")
object1.UpdateAttrAt("xades:SignedProperties",True,"Id","xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-signedprops")
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:SignedSignatureProperties|xades:SigningCertificate|xades:Cert[1]|xades:CertDigest|ds:DigestMethod",True,"Algorithm","http://www.w3.org/2001/04/xmlenc#sha256")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert[1]|xades:CertDigest|ds:DigestValue","TO BE GENERATED BY CHILKAT")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert[1]|xades:IssuerSerial|ds:X509IssuerName","TO BE GENERATED BY CHILKAT")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert[1]|xades:IssuerSerial|ds:X509SerialNumber","TO BE GENERATED BY CHILKAT")
object1.UpdateAttrAt("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert[2]|xades:CertDigest|ds:DigestMethod",True,"Algorithm","http://www.w3.org/2001/04/xmlenc#sha256")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert[2]|xades:CertDigest|ds:DigestValue","TO BE GENERATED BY CHILKAT")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert[2]|xades:IssuerSerial|ds:X509IssuerName","TO BE GENERATED BY CHILKAT")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificate|xades:Cert[2]|xades:IssuerSerial|ds:X509SerialNumber","TO BE GENERATED BY CHILKAT")
object1.UpdateAttrAt("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat",True,"ObjectReference","#xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-ref0")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Description","DFE Signature")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Identifier","efatura-uri")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:DocumentationReferences|xades:DocumentationReference","https://efatura.cv")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:MimeType","text/xml")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Encoding","UTF-8")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication|xades:CommitmentTypeId|xades:Identifier","http://uri.etsi.org/01903/v1.2.2#ProofOfApproval")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication|xades:CommitmentTypeId|xades:Description","Indicates that the signer has approved the content of the signed data object")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication|xades:AllSignedDataObjects","")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication[1]|xades:CommitmentTypeId|xades:Identifier","http://uri.etsi.org/01903/v1.2.2#ProofOfOrigin")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication[1]|xades:CommitmentTypeId|xades:Description","Indicates that the signer recognizes to have created, approved and sent the signed data object")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication[1]|xades:ObjectReference","#xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-ref0")
object1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication[1]|xades:CommitmentTypeQualifiers|xades:CommitmentTypeQualifier","CV-FE-123456789")

gen.AddObject("",object1.GetXml(),"","")


' -------- Reference 1 --------
gen.AddSameDocRef("CV2210818123456789000010100000000546735014601","sha256","","","")
gen.SetRefIdAttr("CV2210818123456789000010100000000546735014601","xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-ref0")

' -------- Reference 2 --------
gen.AddSameDocRef("xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-keyinfo","sha256","C14N","","")

' -------- Reference 3 --------
gen.AddObjectRef("xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-signedprops","sha256","C14N","","http://uri.etsi.org/01903#SignedProperties")

' Provide a certificate + private key. (PFX password is test123)
Dim cert As New Chilkat.Cert
success = cert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123")
If (success <> True) Then
    Debug.WriteLine(cert.LastErrorText)
    Exit Sub
End If

gen.SetX509Cert(cert,True)

gen.KeyInfoType = "X509Data"
gen.X509Type = "IssuerSerial,SubjectName,Certificate"

' Load XML to be signed...
Dim sbXml As New Chilkat.StringBuilder
xmlToSign.GetXmlSb(sbXml)

' Note: The last keyword (Base64Cr13Entity) requires Chilkat v9.5.0.89 or later.
gen.Behaviors = "IndentedSignature,Base64Cr13Entity,ForceAddEnvelopedSignatureTransform,Base64Cr13Entity"

' Sign the XML...
success = gen.CreateXmlDSigSb(sbXml)
If (success <> True) Then
    Debug.WriteLine(gen.LastErrorText)
    Exit Sub
End If

' -----------------------------------------------

' Save the signed XML to a file.
success = sbXml.WriteFile("qa_output/signedXml.xml","utf-8",False)

Debug.WriteLine(sbXml.GetAsString())

' ----------------------------------------
' Verify the signatures we just produced...
Dim verifier As New Chilkat.XmlDSig
success = verifier.LoadSignatureSb(sbXml)
If (success <> True) Then
    Debug.WriteLine(verifier.LastErrorText)
    Exit Sub
End If


Dim numSigs As Integer = verifier.NumSignatures
Dim verifyIdx As Integer = 0
While verifyIdx < numSigs
    verifier.Selector = verifyIdx
    Dim verified As Boolean = verifier.VerifySignature(True)
    If (verified <> True) Then
        Debug.WriteLine(verifier.LastErrorText)
        Exit Sub
    End If

    verifyIdx = verifyIdx + 1
End While
Debug.WriteLine("All signatures were successfully verified.")
 

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