From owner-freebsd-bugs@FreeBSD.ORG Sat May 10 14:35:24 2003 Return-Path: Delivered-To: freebsd-bugs@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id C635637B401 for ; Sat, 10 May 2003 14:35:24 -0700 (PDT) Received: from cvs.openbsd.org (cvs.openbsd.org [199.185.137.3]) by mx1.FreeBSD.org (Postfix) with ESMTP id 2195343FBF for ; Sat, 10 May 2003 14:35:24 -0700 (PDT) (envelope-from deraadt@cvs.openbsd.org) Received: from cvs.openbsd.org (localhost [127.0.0.1]) by cvs.openbsd.org (8.12.9/8.12.1) with ESMTP id h4ALc5KZ013437; Sat, 10 May 2003 15:38:05 -0600 (MDT) Message-Id: <200305102138.h4ALc5KZ013437@cvs.openbsd.org> To: Robin Carey In-reply-to: Your message of "Sat, 10 May 2003 14:32:17 PDT." Date: Sat, 10 May 2003 15:38:05 -0600 From: Theo de Raadt cc: freebsd-bugs@freebsd.org cc: bugs@openbsd.org Subject: Re: /dev/random and /dev/urandom X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 10 May 2003 21:35:25 -0000 This has zero to do with the situation at hand. You are just copying-catting the "MD5 is insecure" yammering that you sometimes see. The details of MD5 that are used here make it fine. Your statement is much like: Cars crash. Cars are unsafe. Don't drive. > I really don't know why I'm bothering to send this email, since what > usually happens after sending an email to bugs@ is I get a lot of rude and > unpleasant replies. > > However..... > > I've been looking at the FreeBSD and OpenBSD source code for these > pseudo-devices; they both use MD5. > > But as I'm sure we all know, the security of MD5 is in doubt, and that's > according to the FreeBSD manual pages (I haven't checked OpenBSD). > According to the SSH Communications Security Website, MD5 should not be > used in "new" programs. > > So the point I am making is that a better cryptographic checksum like SHA1 > should be used instead. > > cheers, > robin >