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From: David Schwartz <davids@webmaster.com>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>, <linux-kernel@vger.kernel.org>
Subject: Re: RFC2385 (MD5 signature in TCP packets) support
Date: Fri, 15 Mar 2002 15:13:59 -0800	[thread overview]
Message-ID: <20020315231400.AAA28257@shell.webmaster.com@whenever> (raw)
In-Reply-To: <E16m0vU-0004xU-00@the-village.bc.nu>


>Not only that MD5 shouldn't be the one. The crypto folks prefer SHA and for
>good reasons.

	There is no problem with MD5 that makes it unsuitable for this particular 
application. A SHA signature would enlarge each packet, further reducing the 
effective MTU. This would increase the cost of what was intended to be a 
simple mechanism to solve a specific problem (spoofed SYNs/RSTs).

	What it comes down to is simply whether you care whether Linux machines can 
interoperate with Cisco's BGP authentication scheme. This feature would be 
very useful to me, so I personally do care, even if the scheme is not the 
best possible scheme.

	DS



  reply	other threads:[~2002-03-15 23:14 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-03-15 22:36 RFC2385 (MD5 signature in TCP packets) support David Schwartz
2002-03-15 22:53 ` David S. Miller
2002-03-15 23:11   ` David Schwartz
2002-03-15 23:14     ` David S. Miller
2002-03-15 23:15   ` Alan Cox
2002-03-15 23:13     ` David Schwartz [this message]
2002-03-15 23:16       ` David S. Miller
2002-03-15 23:40         ` Alan Cox
2002-03-15 23:37           ` David S. Miller
2002-03-15 23:59             ` Alan Cox
2002-03-15 23:45               ` David S. Miller
2002-03-16  0:01                 ` David Schwartz
2002-03-16  0:12                 ` Alan Cox
2002-03-15 23:57                   ` David S. Miller
2002-03-16  0:06                     ` David Schwartz
2002-03-16  1:43                       ` Alan Cox
2002-03-18  4:09                         ` David S. Miller
2002-03-18  5:06                           ` Mike Fedyk
2002-03-18  6:19                             ` David S. Miller
2002-03-16  4:19                     ` debugging eth driver Petko Manolov
2002-03-16 17:27                       ` Alan Cox
2002-03-16 18:52                         ` Petko Manolov
2002-03-16 20:56                           ` Alan Cox
2002-03-17  1:36                           ` Keith Owens
2002-03-17  3:37                             ` Tomasz Kłoczko
2002-03-22  7:40                             ` Cameron Simpson
2002-03-15 23:53               ` RFC2385 (MD5 signature in TCP packets) support David Schwartz
2002-03-15 23:54                 ` David S. Miller
2002-03-16  0:14                   ` Alan Cox
2002-03-17 10:00   ` bert hubert
2002-03-22  5:55     ` 2.5.7, IDE, 'handler not null', 'kernel timer added twice' David Schwartz
2002-03-22  6:10       ` Davide Libenzi
2002-03-22 10:59         ` Martin Dalecki
2002-03-22 20:13           ` Davide Libenzi
2002-03-23 13:12             ` Martin Dalecki
2002-03-22  6:31       ` Andre Hedrick
2002-03-15 23:19 ` RFC2385 (MD5 signature in TCP packets) support Alan Cox

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