(PHP Extension) 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.

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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");

//  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 CkCrypt2();

//  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 CkCert();
$success = $cert->LoadPfxFile($pfxPath,$pfxPassword);
if ($success != true) {
    print $cert->lastErrorText() . "\n";
    exit;
}

//  Provide the signing cert (with associated private key).
$success = $crypt->SetSigningCert($cert);
if ($success != true) {
    print $crypt->lastErrorText() . "\n";
    exit;
}

//  Indicate that SHA-256 should be used.
$crypt->put_HashAlgorithm('sha256');

//  Specify the signed attributes to be included.
//  (This is what makes it CAdES-BES compliant.)
$jsonSignedAttrs = new CkJsonObject();
$jsonSignedAttrs->UpdateInt('contentType',1);
$jsonSignedAttrs->UpdateInt('signingTime',1);
$jsonSignedAttrs->UpdateInt('messageDigest',1);
$jsonSignedAttrs->UpdateInt('signingCertificateV2',1);
$crypt->put_SigningAttributes($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 == false) {
    print $crypt->lastErrorText() . "\n";
    exit;
}

print 'Success.' . "\n";

?>