You are right, just checked C# source, my mistake.
Regards,
Jose.
El miércoles, 24 de octubre de 2012, Hyuga escribió:
> Jose, thanks for your answer, but I've tried the <CTRL + F> before making
> the question, and haven't found anything.
>
> If I simply make a search of the words "IExternal" I can find
> "iTExtSharp.text.pdf.security.IExternalSignature" only, and if I try to
> find something containing the words "ExternalDigest", the only thing I've
> found is the method
> "iTextSharp.text.pdf.security.PdfPKCS7.SetExternalDigest". And that's why
> I'm asking.
>
>
>
> 2012/10/23 José Santiago Bonilla Pazmiño
> <[email protected]<javascript:_e({}, 'cvml',
> '[email protected]');>
> >
>
>> HI, itextsharp uses the same nomenclature that C#, so: ExternalDigest is
>> an Interface and interface names start with "I". You should use
>> IExternalDigest and create your own, or use an existing one.
>>
>> A simple CTRL+F: "ExternalDigest" would have solved your problem.
>>
>> Regards,
>>
>> Jose
>>
>> El martes, 23 de octubre de 2012, Hyuga escribió:
>>
>> Hello everybody!
>>>
>>> I am trying to use iTextSharp to sign digitally a PDF previously
>>> created. I've upgraded my iTextSharp.dll version to 5.3.3.0 (I was
>>> previously using an elder version just for creating the PDFs), I have found
>>> the White Paper about Digital Signatures written by Mr. Lowagie and, of
>>> course, I've tried to apply what I've read there (written in Java) to what
>>> Im doing in VB.NET.
>>>
>>> But I'm doing something wrong, or I'm missing something, because the
>>> classes and their methods doesn't seem to be the same, and I'm not being
>>> able to find them in my downloaded dll.
>>>
>>> For example, the PdfStamper Class doesn't have a
>>> getSignatureAppearance() method, but I found the SignatureAppearance() one,
>>> which I think it does the same, so no problem. The PdfSignatureAppearance
>>> doesn't have the setReason or setLocation mtehods, but this is not my main
>>> problem.
>>> My first problem is when I try to get and ExternalDigest. In fact, I
>>> can't find neither the ExternalDigest class nor an equivalence in my dll
>>> version. And, if I can solve that, the signDetached method signature is not
>>> the same in Java than in VB.NET.
>>>
>>> After all this context (sorry if it's lengthly), my question is: can I
>>> use the concepts in the White Paper about Digital Signatures with
>>> iTextSharp version 5.3.3.0, or I have to downgrade my dll to try a previous
>>> approach to digitally sign my pdfs? If i can use the same concepts, where
>>> can I find the ExternaDigest class?
>>>
>>> Thanks a lot!
>>>
>>
>>
>> --
>> Saludos cordiales,
>>
>>
>> José Bonilla
>> (+593) 95031497
>>
>>
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>> iText(R) is a registered trademark of 1T3XT BVBA.
>> Many questions posted to this list can (and will) be answered with a
>> reference to the iText book: http://www.itextpdf.com/book/
>> Please check the keywords list before you ask for examples:
>> http://itextpdf.com/themes/keywords.php
>>
>
>
--
Saludos cordiales,
José Bonilla
(+593) 95031497
------------------------------------------------------------------------------
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to the iText book: http://www.itextpdf.com/book/
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