From: Andreas Jaeger <aj@suse.de>
Subject: Re: encrypted mails and quoted-printable
Date: Sun, 05 Aug 2001 18:30:26 +0200 [thread overview]
Message-ID: <u866c2o4f1.fsf@gromit.moeb> (raw)
In-Reply-To: <iluu1zmd2q3.fsf@barbar.josefsson.org> (Simon Josefsson's message of "Sun, 05 Aug 2001 16:02:28 +0200")
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Simon Josefsson <jas@extundo.com> writes:
> Andreas Jaeger <aj@suse.de> writes:
>
>>> QP encoding is to avoid the article to be mangled. Though a message
>>> contains only ASCII, lines starting with "From " or so be mangled.
>>
>> I see - but that's rather unfortunate. Is there no way to avoid this?
>> I'd rather don't use QP.
>
> Then you'd be breaking the PGP/MIME specification, and the receiver
> probably couldn't validate your message.
>
> 3. Content-Transfer-Encoding restrictions
>
> Multipart/signed and multipart/encrypted are to be treated by agents
> as opaque, meaning that the data is not to be altered in any way [1].
> However, many existing mail gateways will detect if the next hop does
> not support MIME or 8-bit data and perform conversion to either
> Quoted-Printable or Base64. This presents serious problems for
> multipart/signed, in particular, where the signature is invalidated
> when such an operation occurs. For this reason all data signed
> according to this protocol MUST be constrained to 7 bits (8- bit data
> should be encoded using either Quoted-Printable or Base64).
But this means that I still can use ASCII for 7bits and do not need to
use QP for 7-bit only data.
Have a look at this email - it's signed, contains AFAIK no 8-bit data
and is still QP. That's the problem I see.
Thanks for the explanation I now accept that I have to live with QP as
soon as my emails contain 8-bit data.
Andreas
--
Andreas Jaeger
SuSE Labs aj@suse.de
private aj@arthur.inka.de
http://www.suse.de/~aj
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next prev parent reply other threads:[~2001-08-05 16:30 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-08-02 10:00 Andreas Jaeger
2001-08-04 18:47 ` ShengHuo ZHU
2001-08-05 12:54 ` Andreas Jaeger
2001-08-05 14:02 ` Simon Josefsson
2001-08-05 16:30 ` Andreas Jaeger [this message]
2001-08-05 17:54 ` Florian Weimer
2001-08-05 21:33 ` Andreas Jaeger
2001-08-05 22:14 ` Simon Josefsson
2001-08-06 6:38 ` Florian Weimer
2001-08-05 14:20 ` Nuutti Kotivuori
2001-08-05 14:55 ` Florian Weimer
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