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Visual FoxPro

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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Visual FoxPro
LOCAL lnSuccess
LOCAL loXmlToSign
LOCAL loGen
LOCAL loObject1
LOCAL loCert
LOCAL loSbXml
LOCAL loVerifier
LOCAL lnNumSigs
LOCAL lnVerifyIdx
LOCAL lnVerified

lnSuccess = 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>

lnSuccess = 1

* Create the XML to be signed...

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

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

loGen = CreateObject('Chilkat.XmlDSigGen')

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

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

* Create an Object to be added to the Signature.
loObject1 = CreateObject('Chilkat.Xml')
loObject1.Tag = "xades:QualifyingProperties"
loObject1.AddAttribute("xmlns:xades","http://uri.etsi.org/01903/v1.3.2#")
loObject1.AddAttribute("xmlns:xades141","http://uri.etsi.org/01903/v1.4.1#")
loObject1.AddAttribute("Target","#xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac")
loObject1.UpdateAttrAt("xades:SignedProperties",1,"Id","xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-signedprops")
loObject1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningTime","TO BE GENERATED BY CHILKAT")
loObject1.UpdateAttrAt("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestMethod",1,"Algorithm","http://www.w3.org/2001/04/xmlenc#sha256")
loObject1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:CertDigest|ds:DigestValue","TO BE GENERATED BY CHILKAT")
loObject1.UpdateChildContent("xades:SignedProperties|xades:SignedSignatureProperties|xades:SigningCertificateV2|xades:Cert|xades:IssuerSerialV2","TO BE GENERATED BY CHILKAT")
loObject1.UpdateAttrAt("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat",1,"ObjectReference","#xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-ref0")
loObject1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Description","DFE Signature")
loObject1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:Identifier","efatura-uri")
loObject1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:ObjectIdentifier|xades:DocumentationReferences|xades:DocumentationReference","https://efatura.cv")
loObject1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:MimeType","text/xml")
loObject1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:DataObjectFormat|xades:Encoding","UTF-8")
loObject1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication|xades:CommitmentTypeId|xades:Identifier","http://uri.etsi.org/01903/v1.2.2#ProofOfApproval")
loObject1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication|xades:CommitmentTypeId|xades:Description","Indicates that the signer has approved the content of the signed data object")
loObject1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication|xades:AllSignedDataObjects","")
loObject1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication[1]|xades:CommitmentTypeId|xades:Identifier","http://uri.etsi.org/01903/v1.2.2#ProofOfOrigin")
loObject1.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")
loObject1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication[1]|xades:ObjectReference","#xmldsig-cbd86598-e75e-4ae4-9a27-3b4ee2a789ac-ref0")
loObject1.UpdateChildContent("xades:SignedProperties|xades:SignedDataObjectProperties|xades:CommitmentTypeIndication[1]|xades:CommitmentTypeQualifiers|xades:CommitmentTypeQualifier","CV-FE-123456789")

loGen.AddObject("",loObject1.GetXml(),"","")

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

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

* -------- Reference 3 --------
loGen.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)
loCert = CreateObject('Chilkat.Cert')
lnSuccess = loCert.LoadPfxFile("qa_data/pfx/cert_test123.pfx","test123")
IF (lnSuccess <> 1) THEN
    ? loCert.LastErrorText
    RELEASE loXmlToSign
    RELEASE loGen
    RELEASE loObject1
    RELEASE loCert
    CANCEL
ENDIF

loGen.SetX509Cert(loCert,1)

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

* Load XML to be signed...
loSbXml = CreateObject('Chilkat.StringBuilder')
loXmlToSign.GetXmlSb(loSbXml)

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

* Sign the XML...
lnSuccess = loGen.CreateXmlDSigSb(loSbXml)
IF (lnSuccess <> 1) THEN
    ? loGen.LastErrorText
    RELEASE loXmlToSign
    RELEASE loGen
    RELEASE loObject1
    RELEASE loCert
    RELEASE loSbXml
    CANCEL
ENDIF

* -----------------------------------------------

* Save the signed XML to a file.
lnSuccess = loSbXml.WriteFile("qa_output/signedXml.xml","utf-8",0)

? loSbXml.GetAsString()

* ----------------------------------------
* Verify the signatures we just produced...
loVerifier = CreateObject('Chilkat.XmlDSig')
lnSuccess = loVerifier.LoadSignatureSb(loSbXml)
IF (lnSuccess <> 1) THEN
    ? loVerifier.LastErrorText
    RELEASE loXmlToSign
    RELEASE loGen
    RELEASE loObject1
    RELEASE loCert
    RELEASE loSbXml
    RELEASE loVerifier
    CANCEL
ENDIF

lnNumSigs = loVerifier.NumSignatures
lnVerifyIdx = 0
DO WHILE lnVerifyIdx < lnNumSigs
    loVerifier.Selector = lnVerifyIdx
    lnVerified = loVerifier.VerifySignature(1)
    IF (lnVerified <> 1) THEN
        ? loVerifier.LastErrorText
        RELEASE loXmlToSign
        RELEASE loGen
        RELEASE loObject1
        RELEASE loCert
        RELEASE loSbXml
        RELEASE loVerifier
        CANCEL
    ENDIF

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

RELEASE loXmlToSign
RELEASE loGen
RELEASE loObject1
RELEASE loCert
RELEASE loSbXml
RELEASE loVerifier