(PowerShell) Sign PDF using ARSS (Aruba Remote Signing Service)

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Demonstrates how to sign a PDF using the Aruba Remote Signing Service (ARSS).

Note: This example requires Chilkat v9.5.0.96 or greater.

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

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

$pdf = New-Object Chilkat.Pdf

# Load a PDF to be signed.
$success = $pdf.LoadFile("qa_data/pdf/hello.pdf")
if ($success -eq $false) {
    $($pdf.LastErrorText)
    exit
}

# Options for signing are specified in JSON.
$json = New-Object Chilkat.JsonObject

# Indicate that we want an LTV-enabled signature
$json.UpdateBool("ltvOcsp",$true)

# Define the appearance of the signature.
$json.UpdateInt("page",1)
$json.UpdateString("appearance.y","top")
$json.UpdateString("appearance.x","left")
$json.UpdateString("appearance.fontScale","10.0")
$json.UpdateString("appearance.text[0]","Digitally signed by: cert_cn")
$json.UpdateString("appearance.text[1]","current_dt")
$json.UpdateString("appearance.text[2]","This is an LTV-enabled signature.")

# Load the certificate used for signing.  The certificate's private key is stored on 
# the Aruba.it server and the signing will happen remotely using the
# ARSS (Aruba Remote Signing Service).
# However, we still need the certificate locally (without private key).
$cert = New-Object Chilkat.Cert
$success = $cert.LoadFromFile("qa_data/certs/myCert.cer")
if ($success -eq $false) {
    $($cert.LastErrorText)
    exit
}

# To sign using the Aruba Remote Signing Service, 
# add the following lines of code to specify your authentication credentials,
# and the ID of the certificate w/ private key on the server to be used.
$jsonArss = New-Object Chilkat.JsonObject

# Set the "service" equal to "ARSS" to tell Chilkat to use ARSS for signing.
$jsonArss.UpdateString("service","ARSS")
# Specify the certificate ID, such as "AS0"
# This certificate should match the certificate loaded in the above code.
$jsonArss.UpdateString("certID","YOUR_ARSS_CERT_ID")
$jsonArss.UpdateString("otpPwd","YOUR_OTP_PWD")
$jsonArss.UpdateString("typeOtpAuth","demoprod")
$jsonArss.UpdateString("user","YOUR_ARSS_USERNAME")
$jsonArss.UpdateString("userPWD","YOUR_ARSS_PASSWORD")
$success = $cert.SetCloudSigner($jsonArss)

# Tell the pdf object to use the certificate for signing.
$success = $pdf.SetSigningCert($cert)
if ($success -eq $false) {
    $($pdf.LastErrorText)
    exit
}

# Chilkat will build the signed PDF locally, but will (internally) use ARSS
# to do the RSA sign hash operation.
$success = $pdf.SignPdf($json,"qa_output/hello_ltv_signed.pdf")
if ($success -eq $false) {
    $($pdf.LastErrorText)
    exit
}

$("The PDF has been successfully cryptographically signed with long-term validation.")