برندینگ و برندسازی: php - TCPDF openssl error creating PKCS7 structure warning

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php - TCPDF openssl error creating PKCS7 structure warning

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Ive been trying to generate a signed PDF using the TCPDF Library

My code is as follows:

App::import('Vendor','mtcpdf');

$pdf = new MTCPDF('L');

$pdf->SetProtection(array('copy'), '', null, 0, null);

$pdf->SetMargins(0, 0, 0, true);
$pdf->SetHeaderMargin(0);
$pdf->SetFooterMargin(0);
$pdf->SetAutoPageBreak(false, 0);

$pdf->AddPage('L');
$pdf->Image($imagen, -7, 1, 310, 210, '', '', '', false, 300, '', false, false, 0);

if(!empty($imagentrasera))
 $pdf->AddPage('L');
 $pdf->Image($imagentrasera, -7, 1, 310, 210, '', '', '', false, 300, '', false, false, 0);




if(!empty($certificado_digital))

 $info = array(
 'Name' => __('Certificado PDF',true),
 'Location' => '',
 'Reason' => '',
 'ContactInfo' => '',
 );

 $certificado_crt = 'file://'.$_SERVER['DOCUMENT_ROOT'].Configure::read('directorioinstalacion').'app/webroot/Documentos/certificados/certificado.cer';
 $certificado_key = 'file://'.$_SERVER['DOCUMENT_ROOT'].Configure::read('directorioinstalacion').'app/webroot/Documentos/certificados/key.key';
 $pdf->setSignature($certificado_crt,$certificado_key, '', '', 1, $info);



echo $pdf->Output(__('Certificado',true).'.pdf', 'D');

My "certificado.cer" file was generated using the OpenSSL library. I used the following command:

openssl pkcs12 -in certificate.p12 -out certificado.cer -nodes

And my "key.key" file was generated opening the original .p12 certificate and cutting the Key zone and saving it as the key.key file.

Then the code fais here:

openssl_pkcs7_sign($tempdoc, $tempsign, $this->signature_data['signcert'], array($this->signature_data['privkey'], $this->signature_data['password']), array(), PKCS7_BINARY | PKCS7_DETACHED);

It displays this:

Warning (2): openssl_pkcs7_sign() [function.openssl-pkcs7-sign]: error creating PKCS7 structure! [COREvendorstcpdftcpdf.php, line 7594]

Im using 5.6.25 php version, WAMP local server, and I just cant understand how to solve this, I've been searching on google for a while and found nothing about this.

Any help would be much appreciated!!

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php - TCPDF openssl error creating PKCS7 structure warning