(Lianja) Italian FatturaPA (e-Invoice) Signed XML (CADES-BES P7M) using USB SmartCard Reader

Demonstrates Italian e-Invoice (FatturaPA) signing by using a private key stored on a USB smartcard reader.

Chilkat Lianja Extension Download Chilkat Lianja Extension

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

loCrypt = createobject("CkCrypt2")
loCrypt.VerboseLogging = .T.

loCert = createobject("CkCert")
// Use your smart card user PIN for signing.
loCert.SmartCardPin = "0000"

llSuccess = loCert.LoadFromSmartcard("")
if (llSuccess = .F.) then
    ? loCert.LastErrorText
    release loCrypt
    release loCert
    return
endif

llSuccess = loCrypt.SetSigningCert(loCert)
if (llSuccess = .F.) then
    ? loCrypt.LastErrorText
    release loCrypt
    release loCert
    return
endif

// The CadesEnabled property applies to all methods that create PKCS7 signatures. 
// To create a CAdES-BES signature, set this property equal to true.
loCrypt.CadesEnabled = .T.

loCrypt.HashAlgorithm = "sha256"

loSignedAttrs = createobject("CkJsonObject")
loSignedAttrs.UpdateInt("contentType",1)
loSignedAttrs.UpdateInt("signingTime",1)
loSignedAttrs.UpdateInt("messageDigest",1)
loSignedAttrs.UpdateInt("signingCertificateV2",1)
loCrypt.SigningAttributes = loSignedAttrs.Emit()

// Load XML such as the following:
//  <p:FatturaElettronica xmlns:p="http://ivaservizi.agenziaentrate.gov.it/docs/xsd/fatture/v1.2" versione="FPR12">
//     <FatturaElettronicaHeader>
//        <DatiTrasmissione>
// 	...
//        </DatiTrasmissione>
//        <CedentePrestatore>
// 	...
//        </CedentePrestatore>
//        <CessionarioCommittente>
// 	...
//        </CessionarioCommittente>
//     </FatturaElettronicaHeader>
//     <FatturaElettronicaBody>
//        <DatiGenerali>
//           <DatiGeneraliDocumento>
// 		...
//           </DatiGeneraliDocumento>
//        </DatiGenerali>
//        <DatiBeniServizi>
// 	...
//        </DatiBeniServizi>
//     </FatturaElettronicaBody>
//  </p:FatturaElettronica>

lcInputXmlPath = "c:/someDir/e-Invoice.xml"
lcOutputP7mPath = "c:/someDir/signed.p7m"

// Create the CAdES-BES attached signature, which contains the original data.
llSuccess = loCrypt.CreateP7M(lcInputXmlPath,lcOutputP7mPath)
if (llSuccess = .F.) then
    ? loCrypt.LastErrorText
    release loCrypt
    release loCert
    release loSignedAttrs
    return
endif

? "Success."


release loCrypt
release loCert
release loSignedAttrs