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Re: [iText-questions] Embedding external PKCS7
 Signature-  Debugging...

Paulo Soares

2006-07-06




> -----Original Message-----
> From: itext-questions-bounces@(protected)
> [mailto:itext-questions-bounces@(protected)
> Behalf Of Oliver Welter
> Sent: Thursday, July 06, 2006 12:42 PM
> To: Post all your questions about iText here
> Subject: Re: [iText-questions] Embedding external PKCS7
> Signature- Debugging...
>
> Hi Paulo,
>
> > You need to calculate the hash only over the bytes that you get from
>
> In the meantime I found the error - my Application is not
> able to sign
> binary data :(
>
> > subfilter PdfName.ADBE_PKCS7_SHA1 but it all depends on
> what is inside
> > the generated PKCS#7.
>
> Is there somewhere a usable documentation on the options - I have
> searched adobe websites but didnt find anything valuable...
>

http://partners.adobe.com/public/developer/acrobat/index_advanced.html

> I am looking for the possibility to embed the SHA1 in a
> base64 encoded
> form - anybody knows if this is possible ?
>

Not possible. You must sign the binary data.

Paulo


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