From owner-freebsd-current Sun Feb 2 14:30:47 2003 Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 13F3737B401 for ; Sun, 2 Feb 2003 14:30:46 -0800 (PST) Received: from nagual.pp.ru (pobrecita.freebsd.ru [194.87.13.42]) by mx1.FreeBSD.org (Postfix) with ESMTP id 9DE4943F93 for ; Sun, 2 Feb 2003 14:30:44 -0800 (PST) (envelope-from ache@pobrecita.freebsd.ru) Received: from pobrecita.freebsd.ru (ache@localhost [127.0.0.1]) by nagual.pp.ru (8.12.6/8.12.6) with ESMTP id h12MUhd6068944; Mon, 3 Feb 2003 01:30:43 +0300 (MSK) (envelope-from ache@pobrecita.freebsd.ru) Received: (from ache@localhost) by pobrecita.freebsd.ru (8.12.6/8.12.6/Submit) id h12MUhBg068943; Mon, 3 Feb 2003 01:30:43 +0300 (MSK) (envelope-from ache) Date: Mon, 3 Feb 2003 01:30:43 +0300 From: "Andrey A. Chernov" To: Mark Murray Cc: current@FreeBSD.ORG Subject: Re: rand() is broken Message-ID: <20030202223043.GB68806@nagual.pp.ru> References: <20030202220128.GC68356@nagual.pp.ru> <200302022219.h12MJYaX052408@grimreaper.grondar.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <200302022219.h12MJYaX052408@grimreaper.grondar.org> User-Agent: Mutt/1.5.1i Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Sun, Feb 02, 2003 at 22:19:33 +0000, Mark Murray wrote: > > 1) Implementing random(3) with RC4 is not needed, its algorithm is > > already equal or better. > > Rubbish. :-) RC4's internal state is 256 bytes. In theory, its > cycle-of-repetition is 2^(8*256) bits. This is comparable with random() TYPE4 which internal state is 252 bytes. -- Andrey A. Chernov http://ache.pp.ru/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message