From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754192AbbAFDTI (ORCPT ); Mon, 5 Jan 2015 22:19:08 -0500 Received: from mail-qa0-f54.google.com ([209.85.216.54]:40079 "EHLO mail-qa0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753312AbbAFDTE (ORCPT ); Mon, 5 Jan 2015 22:19:04 -0500 Message-ID: <54AB5425.3010609@hurleysoftware.com> Date: Mon, 05 Jan 2015 22:19:01 -0500 From: Peter Hurley User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.3.0 MIME-Version: 1.0 To: Jeff Epler , linux-kernel@vger.kernel.org Subject: Re: What are these weird line-noise signatures? References: <1415624983-22413-1-git-send-email-kever.yang@rock-chips.com> <5463FE5E.906@rock-chips.com> <20150106025749.GA41958@unpythonic.net> In-Reply-To: <20150106025749.GA41958@unpythonic.net> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01/05/2015 10:12 PM, Jeff Epler wrote: > I have seen similar "signatures" that have the appearance of good old > fashioned line noise, such as in this recent message from Paul > Zimmerman (but not in all of his messages either!): > > On Tue, Jan 06, 2015 at 01:23:30AM +0000, Paul Zimmerman wrote: > [real content snipped] >> -- >> Paul >> >> N?????r??y????b?X??ǧv?^?){.n?+????{????zX??^W??ܨ}???Ơz?&j:+v???^G????zZ+??+zf???h???~????i???z?^^?w?????????&?)ߢ^[f??^jǫy?m??@A?a??^??^L0??h?^O??i^? > (some characters were control characters and are represented with carets > above, and my mailreader seems to have transcoded other non-ASCIIs as > reencoded by my mailreader, but it's hard to be sure) > > I have seen them from senders at various domains, and they are not some > kind of artifact of my own mail system because they appear in the > archives e.g., at > > http://article.gmane.org/gmane.linux.usb.general/120149 > > and similarly in a 2014 message from another poster at another domain: > [real content snipped again] >>> Please read the FAQ at http://www.tux.org/lkml/ >> N?????r??y????b?X??ǧv?^?) .n?+????{????zX??^W??ܨ}???Ơz?&j:+v???^G????zZ+??+zf???h???~????i???z?^^?w?????????&?)ߢ^[f??^jǫy?m??@A?a??^??^L0??h?^O??i^? > > http://mid.gmane.org/CD2CABCB2C0A0D4682C5F8AD8401415409741D%40HKXPRD3002MB006.064d.mgd.msft.net > > [not quite byte-for-byte identical, but very close!] > > Does anyone know what the purpose of these footers is? Highly > compressed legal disclaimer, I'm guessing. Paul's message in base64-encoded. The scramble you see at the end when the message is decoded is the majordomo signature added in plaintext, decoded as if it were base64. Regards, Peter Hurley