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(PHP ActiveX) Sign a PDF using SmartCard or HSM (Hardware Security Module)See more PDF Signatures ExamplesThis example demonstrates how to a sign a PDF using a smartcard or HSM (hardware security module). Note: This example requires Chilkat v9.5.0.88 or greater.
<?php // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Pdf') $pdf = new COM("Chilkat.Pdf"); // Load a PDF to be signed. // The "hello.pdf" is available at https://chilkatsoft.com/hello.pdf $success = $pdf->LoadFile('qa_data/pdf/hello.pdf'); if ($success == 0) { print $pdf->LastErrorText . "\n"; exit; } // Options for signing are specified in JSON. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.JsonObject') $json = new COM("Chilkat.JsonObject"); // In most cases, the signingCertificateV2 and signingTime attributes are required. $json->UpdateInt('signingCertificateV2',1); $json->UpdateInt('signingTime',1); // Put the signature on page 1, top left $json->UpdateInt('page',1); $json->UpdateString('appearance.y','top'); $json->UpdateString('appearance.x','left'); // Use a font scale of 10.0 $json->UpdateString('appearance.fontScale','10.0'); // In this example, the appearance of the digital signature will contain three lines: // 1) The signing certificate's common name // 2) The current date/time // 3) Some arbitrary text. // The keyword "cert_cn" is replaced with the Certificate's Subject Common Name. // The keyword "current_dt" is replaced with the current date/time. // Any number of appearance text lines can be added. $json->UpdateString('appearance.text[0]','Digitally signed by: cert_cn'); $json->UpdateString('appearance.text[1]','current_dt'); $json->UpdateString('appearance.text[2]','The crazy brown fox jumps over the lazy dog.'); // Use a certificate on a smartcard or USB token. // For versions of Chilkat < 10.0.0, use new COM('Chilkat_9_5_0.Chilkat.Cert') $cert = new COM("Chilkat.Cert"); // Provide the smartcard PIN. // Set the smartcard PIN prior to calling LoadFromSmartcard. // If the PIN is not explicitly provided here, the Windows OS should // display a dialog for the PIN. $cert->SmartCardPin = '123456'; // 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 == 0) { print $cert->LastErrorText . "\n"; exit; } // Tell the pdf object to use the certificate for signing. $success = $pdf->SetSigningCert($cert); if ($success == 0) { print $pdf->LastErrorText . "\n"; exit; } $success = $pdf->SignPdf($json,'qa_output/hello_signed_hsm.pdf'); if ($success == 0) { print $pdf->LastErrorText . "\n"; exit; } print 'The PDF has been successfully cryptographically signed using an HSM.' . "\n"; ?> |
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