Nice! Thank you very much!
(Btw, it could be nice to integrate in a future release a method certify()
in the PDSignature object).
obrigado!
2016-10-18 15:42 GMT+02:00 Diego Azevedo <dazev...@esec.com.br>:
> Hello Damien,
>
> I made a typo:
>
> dictionary.setItem("Reference", reference*s*); // Add Array to Signature
> dictionary
>
> There is no point in creating the array, add the "SigRef" dictionary to
> it... and not use the array on the "Sig" dictionary. So... just add the
> 'S' to the variable and re-run it. Just tested here, and it worked fine =)
>
> []'s
>
> --
>
>
>
>
>
>
> *_______________________________________________ Diego Azevedo Developer
> E-SEC Segurança Digital www.esec.com.br <http://www.esec.com.br> +55 61
> 3323-4410 <%2B55%2061%203323-4410>*
>
>
> On 18/10/2016 10:21, Damien Butaye wrote:
>
> Hello Diego,
>
> Thank you for your help. I just tried your code but it seems that it
> doesn't work. The result has nor signature nor certify element. I'll try
> again.
> If you have any idea, don't hesitate ;)
>
> Damien.
>
> 2016-10-18 13:04 GMT+02:00 Diego Azevedo <dazev...@esec.com.br>:
>
>> From what I'm reading on ISO 32000, the certification Signature is a
>> normal signature, but with a DocMDP transform method. So the ou should do
>> something like this:
>>
>> PDSignature signature = new PDSignature;
>> [..] //do your thing
>> COSDictinary dictionary = signature.getCOSObject();
>>
>> //Create a reference dictionary
>> COSDictionary reference = new COSDictionary();
>> reference.setItem("Type", COSName.getPDFName("SigRef"));
>> reference.setItem("TransformMethod", COSName.getPDFName("DocMDP"));
>> reference.setItem("DigestMethod", COSName.getPDFName("SHA1")); //Only
>> MD5 or SHA1... Go with the least worse
>>
>> //Now we add DocMDP specific stuff
>> COSDictionary transformParameters = new COSDictionary();
>> transformParameters.setItem("Type", COSName.getPDFName("TransformP
>> arams"));
>> transformParameters.setInteger("P", <1, 2 or 3>); // 1- no changes
>> permited; 2- fill forms and signing; 3- Same as 2 plus annotation creation,
>> deletion an modification.
>> transformParameters.setItem("V", COSName.getPDFName("1.2")); // This is
>> right, it's a name, not a number.
>>
>> // Add everything in order
>> reference.setItem("TransformParams", transformParameters ); // Add
>> DocMDP stuff to the SigRef Dictionary;
>> COSArray references = new COSArray();
>> references.add(reference); // Add SigRef Dictionary to a Array
>> dictionary.setItem("Reference", reference); // Add Array to Signature
>> dictionary
>>
>> I didn't try it myself, just wrote based on PdfBox API and ISO
>> specification. May have errors.
>> On 18/10/2016 06:12, Damien Butaye wrote:
>>
>> Hello Tilman,
>>
>> Here follows two links explaining the difference :
>>
>>
>> 1. http://www.investintech.com/resources/articles/certifyingsigningpdf/
>> 2.
>>
>> http://stackoverflow.com/questions/16710439/how-to-add-blank-page-in-digitally-signed-pdf-using-java/16711745#16711745
>>
>> Damien.
>>
>> 2016-10-18 8:49 GMT+02:00 Tilman Hausherr <thaush...@t-online.de>
>> <thaush...@t-online.de>:
>>
>>
>> Dear all,
>>
>> I'm looking for a solution to certify a PDF. Currently I'm able to
>> sign a
>> PDF using PDFBox but I can't certify it. Is-it possible to do it with
>> PDFBox?
>>
>>
>> Thank you for your help!
>>
>>
>> What's the difference? (See my other answer from today)
>>
>> Tilman
>>
>>
>>
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>>
