PAdES (PKCS11) and Zend_Pdf

Similar to my last post about Zend_Mail S/MIME class, this one allows to digitally sign and even add TSA (timestamping) support to your PDF documents generated using Zend_Pdf. There is a standalone ASN1 parser included that can be used for other projects that require ASN1 data interchange. See https://en.wikipedia.org/wiki/PAdEShttps://www.ietf.org/rfc/rfc3161.txt for reference. The challenge was to add the BytesRange element with right byte bounds of the signed document. How to use it:

Note, that you need a writeable by php user directory (tmp in the example above). See attached Zend_Pdf modified class + Zend_ASN1 parser.

Zend_Pades_TSA

  • Podolinek

    Hi, thanks a lot for the script. I was looking PDF digital certification for weeks. I am not using Zend, but it was quite easy extract necessary libs and voila, it running. Well done:)

    • admin

      Hi, glad it helped!

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