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

See more Signing in the Cloud Examples

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

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

Chilkat Perl Downloads Perl Module for Windows, MacOS, Linux, Alpine Linux, Solaris

use chilkat();

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

$pdf = chilkat::CkPdf->new();

# Load a PDF to be signed.
$success = $pdf->LoadFile("qa_data/pdf/hello.pdf");
if ($success == 0) {
    print $pdf->lastErrorText() . "\r\n";
    exit;
}

# Options for signing are specified in JSON.
$json = chilkat::CkJsonObject->new();

# Indicate that we want an LTV-enabled signature
$json->UpdateBool("ltvOcsp",1);

# 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 = chilkat::CkCert->new();
$success = $cert->LoadFromFile("qa_data/certs/myCert.cer");
if ($success == 0) {
    print $cert->lastErrorText() . "\r\n";
    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 = chilkat::CkJsonObject->new();

# 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 == 0) {
    print $pdf->lastErrorText() . "\r\n";
    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 == 0) {
    print $pdf->lastErrorText() . "\r\n";
    exit;
}

print "The PDF has been successfully cryptographically signed with long-term validation." . "\r\n";