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List:       gnupg-users
Subject:    Re: Sign a multipart/alternative mail
From:       Ingo =?iso-8859-15?q?Kl=F6cker?= <kloecker () kde ! org>
Date:       2011-11-02 22:03:07
Message-ID: 201111022303.07963 () thufir ! ingo-kloecker ! de
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On Thursday 27 October 2011, Pascal Nitsche wrote:
> Am 26.10.2011 22:03, schrieb Ingo Klöcker:
> > On Wednesday 26 October 2011, Pascal Nitsche wrote:
> >> Hello folks,
> >> 
> >> I'm trying to sign a mail of the mime type "multipart/alternative"
> >> using pgp in PHP.
> >> The generation of the signature and the correct boundaries works
> >> just fine, but I can't bring it to generate a valid signature.
> >> 
> >> I think I'm missing something important here.
> >> 
> >> First of all I encode the text and html portions of the mail as
> >> quoted-printable and replace every new line character with
> >> <CR><LF> as to be found in the RFCs (which seem not to state
> >> anything about multipart).
> >> 
> >> Now I generate the signature of the complete mime part and put it
> >> into its own mime part.

[snip]

> > You also do not mention whether you remove trailing whitespace. If
> > you quoted-printable encode trailing spaces as =20 then you do not
> > need to remove it.
[snip]
> 
> Hello Ingo,
> 
> thanks for your help. I found out about this yesterday evening myself
> through (It's only logical if you think about it...) I just thought
> of the message content another way at first.
> 
> Also thanks for the tip with the trailing whitespaces, I'll test
> it... But there shouldn't be whitespaces after the last boundary
> line of the message or is this considered to be done for each line
> and not just for the last one of the message to be signed?

This has to be done for each line.


Regards,
Ingo

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