Bug 2980

Summary:	PGP/Inline encrypted messages use binary content transfer encoding
Product:	Claws Mail (GTK 2)	Reporter:	LoseDanger
Component:	Other	Assignee:	users
Status:	RESOLVED INVALID
Severity:	normal
Priority:	P3
Version:	3.9.1
Hardware:	PC
OS:	All

Description LoseDanger 2013-07-18 22:58:20 UTC

When sending PGP/Inline encrypted messages in Claws Mail, it uses:

Content-Transfer-Encoding: binary

However, RFC2045, section 6.2. Content-Transfer-Encodings Semantics, https://tools.ietf.org/html/rfc2045#section-6.2 , specifies that "[...] there are no circumstances in which the "binary" Content-Transfer-Encoding is actually valid in Internet mail."

This section is further updated in rfc6532, which still does not permit to use binary content transfer encoding in the way it is currently done in claws (it would require using message/global instead of message/rfc822).

Comment 1 Paul 2013-07-19 09:29:17 UTC

The claim in the summary is untrue. Also you're misquoting, quoting out of context, and/or mis-reading the RFCs.

Comment 2 Colin Leroy 2013-07-19 09:40:30 UTC

In fact, it does, maybe not always but it does:
Date: Fri, 19 Jul 2013 09:39:17 +0200
From: Colin Leroy <colin@colino.net>
To: colin@colino.net <colin@colino.net>
Subject: test
Message-ID: <20130719093917.4bf4032d@colin>
X-Mailer: Claws Mail 3.9.1-20-g937596-dirty (GTK+ 2.24.13; x86_64-unknown-linux-gnu)
Mime-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-15
Content-Transfer-Encoding: binary

-----BEGIN PGP MESSAGE-----
Version: GnuPG v1.4.12 (GNU/Linux)
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=YIi8
-----END PGP MESSAGE-----


But I fail to see how this is a problem...

Comment 3 Paul 2013-07-19 10:03:31 UTC

Date: Fri, 19 Jul 2013 08:08:29 +0100
From: paul@claws-mail.org
To: paul@claws-mail.org
Subject: test
Message-ID: <20130719080829.62fe24a5@claws-mail>
X-Mailer: Claws Mail 3.9.2-31-g50116e (GTK+ 2.24.17; i686-pc-linux-gnu)
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit

-----BEGIN PGP MESSAGE-----
Version: GnuPG v1.4.12 (GNU/Linux)
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=yF5v
-----END PGP MESSAGE----

Comment 4 Colin Leroy 2013-07-19 10:12:27 UTC

Ah, it depends on the locale's default charset, then.