(PowerShell) 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 .NET Downloads Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

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

$crypt = New-Object Chilkat.Crypt2
$crypt.VerboseLogging = $true

$cert = New-Object Chilkat.Cert
# Use your smart card user PIN for signing.
$cert.SmartCardPin = "0000"

$success = $cert.LoadFromSmartcard("")
if ($success -eq $false) {
    $($cert.LastErrorText)
    exit
}

$success = $crypt.SetSigningCert($cert)
if ($success -eq $false) {
    $($crypt.LastErrorText)
    exit
}

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

$crypt.HashAlgorithm = "sha256"

$signedAttrs = New-Object Chilkat.JsonObject
$signedAttrs.UpdateInt("contentType",1)
$signedAttrs.UpdateInt("signingTime",1)
$signedAttrs.UpdateInt("messageDigest",1)
$signedAttrs.UpdateInt("signingCertificateV2",1)
$crypt.SigningAttributes = $signedAttrs.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>

$inputXmlPath = "c:/someDir/e-Invoice.xml"
$outputP7mPath = "c:/someDir/signed.p7m"

# Create the CAdES-BES attached signature, which contains the original data.
$success = $crypt.CreateP7M($inputXmlPath,$outputP7mPath)
if ($success -eq $false) {
    $($crypt.LastErrorText)
    exit
}

$("Success.")