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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 

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LOCAL nSuccess
LOCAL oXmlToSign
LOCAL oGen
LOCAL oObject1
LOCAL oCert
LOCAL oSbXml
LOCAL oVerifier
LOCAL nNumSigs
LOCAL nVerifyIdx
LOCAL nVerified

nSuccess := 0

//  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>Regi�o do Emissor</Region>
//                  <Street>Rua do Emissor</Street>
//                  <StreetDetail>Detalhe da rua do Emissor</StreetDetail>
//                  <BuildingName>Pr�dio do Emissor</BuildingName>
//                  <BuildingNumber>1</BuildingNumber>
//                  <BuildingFloor>2</BuildingFloor>
//                  <PostalCode>7600</PostalCode>
//                  <AddressDetail>Detalhe de endere�o 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>Regi�o do Recetor</Region>
//                  <Street>Rua do Recetor</Street>
//                  <StreetDetail>Detalhe da rua do Recetor</StreetDetail>
//                  <BuildingName>Pr�dio do Recetor</BuildingName>
//                  <BuildingNumber>2</BuildingNumber>
//                  <BuildingFloor>3</BuildingFloor>
//                  <PostalCode>7601</PostalCode>
//                  <AddressDetail>Detalhe de endere�o 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>Telem�vel</Description>
//                      <Name>Telem�vel</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 P�blico</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>

nSuccess := 1

//  Create the XML to be signed...

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

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

oGen := CreateObject("Chilkat.XmlDSigGen")

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

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

//  Create an Object to be added to the Signature.
oObject1 := CreateObject("Chilkat.Xml")
oObject1:Tag := "xades:QualifyingProperties"
oObject1:AddAttribute("xmlns:xades", "http://uri.etsi.org/01903/v1.3.2#")
oObject1:AddAttribute("xmlns:xades141", "http://uri.etsi.org/01903/v1.4.1#")
oObject1:AddAttribute("Target", "#xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac")
oObject1:UpdateAttrAt("xades:SignedProperties", 1, "Id", "xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-signedprops")
oObject1:UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningTime", "TO BE GENERATED BY CHILKAT")
oObject1:UpdateAttrAt("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestMethod", 1, "Algorithm", "http://www.w3.org/2001/04/xmlenc#sha256")
oObject1:UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestValue", "TO BE GENERATED BY CHILKAT")
oObject1:UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:IssuerSerialV2", "TO BE GENERATED BY CHILKAT")
oObject1:UpdateAttrAt("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat", 1, "ObjectReference", "#xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-ref0")
oObject1:UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Description", "DFE Signature")
oObject1:UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Identifier", "efatura-uri")
oObject1:UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:DocumentationReferences|xades:DocumentationReference", "https://efatura.cv")
oObject1:UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:MimeType", "text/xml")
oObject1:UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Encoding", "UTF-8")
oObject1:UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication|xades:CommitmentTypeId|xades:Identifier", "http://uri.etsi.org/01903/v1.2.2#ProofOfApproval")
oObject1:UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication|xades:CommitmentTypeId|xades:Description", "Indicates that the signer has approved the content of the signed data object")
oObject1:UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication|xades:AllSignedDataObjects", "")
oObject1:UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication[1]|xades:CommitmentTypeId|xades:Identifier", "http://uri.etsi.org/01903/v1.2.2#ProofOfOrigin")
oObject1: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")
oObject1:UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication[1]|xades:ObjectReference", "#xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-ref0")
oObject1:UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication[1]|xades:CommitmentTypeQualifiers|xades:CommitmentTypeQualifier", "CV-FE-123456789")

oGen:AddObject("", oObject1:GetXml(), "", "")

//  -------- Reference 1 --------
oGen:AddSameDocRef("CV2210818123456789000010100000000546735014601", "sha256", "", "", "")
oGen:SetRefIdAttr("CV2210818123456789000010100000000546735014601", "xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-ref0")

//  -------- Reference 2 --------
oGen:AddSameDocRef("xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-keyinfo", "sha256", "C14N", "", "")

//  -------- Reference 3 --------
oGen: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)
oCert := CreateObject("Chilkat.Cert")
nSuccess := oCert:LoadPfxFile("qa_data/pfx/cert_test123.pfx", "test123")
IF (nSuccess != 1)
    ? oCert:LastErrorText
    oXmlToSign:destroy()
    oGen:destroy()
    oObject1:destroy()
    oCert:destroy()
    RETURN
ENDIF

oGen:SetX509Cert(oCert, 1)

oGen:KeyInfoType := "X509Data"
oGen:X509Type := "IssuerSerial,SubjectName,Certificate"

//  Load XML to be signed...
oSbXml := CreateObject("Chilkat.StringBuilder")
oXmlToSign:GetXmlSb(oSbXml)

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

//  Sign the XML...
nSuccess := oGen:CreateXmlDSigSb(oSbXml)
IF (nSuccess != 1)
    ? oGen:LastErrorText
    oXmlToSign:destroy()
    oGen:destroy()
    oObject1:destroy()
    oCert:destroy()
    oSbXml:destroy()
    RETURN
ENDIF

//  -----------------------------------------------

//  Save the signed XML to a file.
nSuccess := oSbXml:WriteFile("qa_output/signedXml.xml", "utf-8", 0)

? oSbXml:GetAsString()

//  ----------------------------------------
//  Verify the signatures we just produced...
oVerifier := CreateObject("Chilkat.XmlDSig")
nSuccess := oVerifier:LoadSignatureSb(oSbXml)
IF (nSuccess != 1)
    ? oVerifier:LastErrorText
    oXmlToSign:destroy()
    oGen:destroy()
    oObject1:destroy()
    oCert:destroy()
    oSbXml:destroy()
    oVerifier:destroy()
    RETURN
ENDIF

nNumSigs := oVerifier:NumSignatures
nVerifyIdx := 0
DO WHILE nVerifyIdx < nNumSigs
    oVerifier:Selector := nVerifyIdx
    nVerified := oVerifier:VerifySignature(1)
    IF (nVerified != 1)
        ? oVerifier:LastErrorText
        oXmlToSign:destroy()
        oGen:destroy()
        oObject1:destroy()
        oCert:destroy()
        oSbXml:destroy()
        oVerifier:destroy()
        RETURN
    ENDIF

    nVerifyIdx := nVerifyIdx + 1
ENDDO
? "All signatures were successfully verified."

oXmlToSign:destroy()
oGen:destroy()
oObject1:destroy()
oCert:destroy()
oSbXml:destroy()
oVerifier:destroy()