PHP Extension

Create CAdES-BES .p7m using Smart Card or USB Token

See more Digital Signatures Examples

Demonstrates how to create a CAdES BES invoice.xml.p7m using a certificate stored on a smart card or USB token.

Note: This example requires Chilkat v9.5.0.77 and at the time of this writing is restricted to the Windows operating system.

PHP Extension

<?php

include("chilkat.php");

$success = false;

// Note: Requires Chilkat v9.5.0.77 or greater.

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

$crypt = new CkCrypt2();

// Use a certificate on a smartcard or USB token.
$cert = new CkCert();
// Load the certificate on the smartcard currently in the reader (or on the USB token).
// Pass an empty string to allow Chilkat to automatically choose the CSP (Cryptographi Service Provider).
// See Load Certificate on Smartcard for information about explicitly selecting a particular CSP.
$success = $cert->LoadFromSmartcard('');
if ($success != true) {
    print $cert->lastErrorText() . "\n";
    exit;
}

// Provide the smartcard PIN.
// If the PIN is not explicitly provided here, the Windows OS should
// display a dialog for the PIN.
$cert->put_SmartCardPin('000000');

// Provide the certificate for signing.
$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";

?>