(PowerShell) Create CAdES-BES .p7m for FatturaPA XML Invoice

Demonstrates how to create a CAdES BES invoice.xml.p7m for the Italian FatturaPA exchange system.

Note: This example requires Chilkat v9.5.0.75.

Chilkat .NET Downloads Chilkat .NET Assemblies

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

# Note: Requires Chilkat v9.5.0.75 or greater.

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

$crypt = New-Object Chilkat.Crypt2

# Use a digital certificate and private key from a PFX file (.pfx or .p12).
$pfxPath = "qa_data/pfx/cert_test123.pfx"
$pfxPassword = "test123"

$cert = New-Object Chilkat.Cert
$success = $cert.LoadPfxFile($pfxPath,$pfxPassword)
if ($success -ne $true) {
    $($cert.LastErrorText)
    exit
}

# Provide the signing cert (with associated private key).
$success = $crypt.SetSigningCert($cert)
if ($success -ne $true) {
    $($crypt.LastErrorText)
    exit
}

# Indicate that SHA-256 should be used.
$crypt.HashAlgorithm = "sha256"

# Specify the signed attributes to be included.
# (This is what makes it CAdES-BES compliant.)
$jsonSignedAttrs = New-Object Chilkat.JsonObject
$jsonSignedAttrs.UpdateInt("contentType",1)
$jsonSignedAttrs.UpdateInt("signingTime",1)
$jsonSignedAttrs.UpdateInt("messageDigest",1)
$jsonSignedAttrs.UpdateInt("signingCertificateV2",1)
$crypt.SigningAttributes = $jsonSignedAttrs.Emit()

$inFile = "qa_data/xml/IT01234567890_11002.xml"
$sigFile = "qa_output/IT01234567890_11002.xml.p7m"

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

$("Success.")