harbour & digital signing PDF (PKCS#11)

[Nikola Loncar]

Hi,

I have hard time finding a right library that can be used inside harbour for adding digital signature to PDF. Certificate is located on smart card so that library must have implementation of PKCS#11 standard. There are a lot of java/.net solutions for signing but its hard to find c/c++ that can be direcly used in harbour. Does anyone have any experience in that, any help is appreciated. 

In short Library that I am looking for must have :

- small size (<5MB)

- PKCS#11 standard

- ability to be used in harbour directly

- ability  to digitaly sign PDF

Regards

Nikola

[M., Ronaldo]

Hi !

Adding digital signatures to PDFs / Signing PDFs

http://help.adobe.com/en_US/Reader/8.0/help.html?content=WS58a04a822e3e50102bd615109794195ff-7d48.html

Signing Data and Verifying Digital Signatures (Windows: using capicom.dll)

http://msdn.microsoft.com/en-us/library/windows/desktop/aa387762%28v=vs.85%29.aspx
*** But to sign a PDF, first will need to open and edit the file.
*** hbhpdf can create pdf files, but I'm not sure if it can be used to update one.

[Óscar Hernández Suárez]

I have hard time finding a right library that can be used inside harbour for adding digital signature to PDF. Certificate is located on smart card so that library must have implementation of PKCS#11 standard. There are a lot of java/.net solutions for signing but its hard to find c/c++ that can be direcly used in harbour. Does anyone have any experience in that, any help is appreciated. 

That's on my list of things to do.

At the time i compile this information:

http://www.adobe.com/devnet-docs/acrobatetk/tools/DigSig/Acrobat_DigitalSignatures_in_PDF.pdf

http://www.securityfocus.com/archive/1/513011

http://tcpdf.git.sourceforge.net/git/gitweb.cgi?p=tcpdf/tcpdf;a=blob_plain;f=tcpdf.php;hb=HEAD

I will when I have time.

I thought do it with hbssl and hbhpdf. Make the pdf with hbhpdf and then sign it with hbssl using PDF's incremental update facility.

Regards.

[Nikola Loncar]

Hi Ronaldo,

Thanks for reply. I am not sure for the capicom.dll, I was hoping to find dll that have all stuff needed for editing pdf and signing.