(PHP Extension) Create CAdES (p7m) Signature using ARSS (Aruba Remote Signing Service)

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Demonstrates creating a CAdES (p7m) signature using the Aruba Remote Signing Service.

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

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<?php

// The version number (9_5_0) should match version of the Chilkat extension used, omitting the micro-version number.
// For example, if using Chilkat v9.5.0.48, then include as shown here:
include("chilkat_9_5_0.php");

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

// 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 CkCert();
$success = $cert->LoadFromFile('qa_data/certs/myCert.cer');
if ($success == false) {
    print $cert->lastErrorText() . "\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 = new CkJsonObject();

// 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);

$crypt = new CkCrypt2();

$success = $crypt->SetSigningCert($cert);
if ($success == false) {
    print $crypt->lastErrorText() . "\n";
    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->put_CadesEnabled(true);

$crypt->put_HashAlgorithm('sha256');

$signedAttrs = new CkJsonObject();
$signedAttrs->UpdateInt('contentType',1);
$signedAttrs->UpdateInt('signingTime',1);
$signedAttrs->UpdateInt('messageDigest',1);
$signedAttrs->UpdateInt('signingCertificateV2',1);
$crypt->put_SigningAttributes($signedAttrs->emit());

// You can sign any type of file..
$inputXmlPath = 'qa_data/e-Invoice.xml';
$outputP7mPath = 'qa_output/signed.p7m';

// Create the CAdES-BES attached signature, which contains the original data.
// Chilkat will build the .p7m locally, but will (internally) use ARSS
// to do the RSA signing remotely.
$success = $crypt->CreateP7M($inputXmlPath,$outputP7mPath);
if ($success == false) {
    print $crypt->lastErrorText() . "\n";
    exit;
}

print 'Success.' . "\n";

?>