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(PHP Extension) FatturaPA XML Invoice Sign+Encrypt to P7M

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

Note: This example requires Chilkat v9.5.0.75 or greater.

Chilkat PHP Downloads

PHP Extension for Windows, Linux, MAC OS X,
Alpine Linux, Solaris, OpenBSD, FreeBSD,
and Linux armhf/aarch64

<?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_data/fatturapa/signed.p7m';

// Create the CAdES-BES signature, which contains the original data.
$success = $crypt->CreateP7M($inFile,$sigFile);
if ($success == false) {
    print $crypt->lastErrorText() . "\n";
    exit;
}

// Now we'll encrypt what was signed using FatturaPA's certificate (from a PEM file)
$encryptCert = new CkCert();
$success = $encryptCert->LoadFromFile('qa_data/certs/fatturapa_cert.pem');
if ($success != true) {
    print $encryptCert->lastErrorText() . "\n";
    exit;
}

$crypt->put_CryptAlgorithm('pki');

$success = $crypt->SetEncryptCert($encryptCert);
if ($success != true) {
    print $crypt->lastErrorText() . "\n";
    exit;
}

// Indicate the underlying bulk encryption algorithm to be used:
$crypt->put_Pkcs7CryptAlg('aes');
$crypt->put_KeyLength(128);

// There's one last option that could be set.  If is the RSA encryption encryption/padding scheme. 
// By default, RSAES_PKCS1-V1_5 is used.  If desired, the OaepPadding property could be set to true to
// use RSAES_OAEP.  (We'll leave it set at the default value of false)
$crypt->put_OaepPadding(false);

// Everything is specified.  Encrypt the .p7m to create a new .p7m (which adds a layer of encryption around the opaque signature).
// The output is PKCS7 in binary DER format.
$success = $crypt->CkEncryptFile($sigFile,'qa_output/signed_and_encrypted.p7m');
if ($success != true) {
    print $crypt->lastErrorText() . "\n";
    exit;
}

print 'Success.' . "\n";

?>

 

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