From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Michael Heerdegen Newsgroups: gmane.emacs.help Subject: Re: Noob dumb question (extending emacs) Date: Wed, 03 Nov 2021 22:24:55 +0100 Message-ID: <87cznhhqzc.fsf@web.de> References: <871r4ernmt.fsf@zoho.eu> <87o87hnrpt.fsf@zoho.eu> <87y26kkuag.fsf@web.de> <87zgr0t3vw.fsf@web.de> <87o87fy4t3.fsf@zoho.eu> <87ilxmsuqq.fsf@web.de> <87k0hxj37u.fsf@zoho.eu> <878rydbcm4.fsf@web.de> <8735okj2bx.fsf@zoho.eu> <87fsskzroz.fsf@zoho.eu> <877ddsgbx0.fsf@web.de> <878ry8vd71.fsf@zoho.eu> <87pmrj3bup.fsf@web.de> <87v91arqt2.fsf@zoho.eu> Mime-Version: 1.0 Content-Type: text/plain Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="24470"; mail-complaints-to="usenet@ciao.gmane.io" User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/29.0.50 (gnu/linux) To: help-gnu-emacs@gnu.org Cancel-Lock: sha1:3SRDJWibKywLHBKwyTedZiCwD0w= Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Wed Nov 03 22:43:00 2021 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1miO28-0006CG-Ip for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 03 Nov 2021 22:43:00 +0100 Original-Received: from localhost ([::1]:55428 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1miO27-0001Xt-9j for geh-help-gnu-emacs@m.gmane-mx.org; Wed, 03 Nov 2021 17:42:59 -0400 Original-Received: from eggs.gnu.org ([2001:470:142:3::10]:45034) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1miNku-0003jz-GL for help-gnu-emacs@gnu.org; Wed, 03 Nov 2021 17:25:12 -0400 Original-Received: from ciao.gmane.io ([116.202.254.214]:42328) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1miNks-0000MN-IG for help-gnu-emacs@gnu.org; Wed, 03 Nov 2021 17:25:12 -0400 Original-Received: from list by ciao.gmane.io with local (Exim 4.92) (envelope-from ) id 1miNkq-0005DZ-Nd for help-gnu-emacs@gnu.org; Wed, 03 Nov 2021 22:25:08 +0100 X-Injected-Via-Gmane: http://gmane.org/ Received-SPF: pass client-ip=116.202.254.214; envelope-from=geh-help-gnu-emacs@m.gmane-mx.org; helo=ciao.gmane.io X-Spam_score_int: -13 X-Spam_score: -1.4 X-Spam_bar: - X-Spam_report: (-1.4 / 5.0 requ) BAYES_00=-1.9, FREEMAIL_FORGED_FROMDOMAIN=0.249, FREEMAIL_FROM=0.001, HEADER_FROM_DIFFERENT_DOMAINS=0.249, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane-mx.org@gnu.org Original-Sender: "help-gnu-emacs" Xref: news.gmane.io gmane.emacs.help:134342 Archived-At: Emanuel Berg via Users list for the GNU Emacs text editor writes: > What does that formula communicate? For given entropy N, a given number, it returns for what word length there are approximately N different (pass)words. > The password length is a function of the number of bits of > entropy and the alphabet size? What password is that? > A password of just that length? ... ??? The functions counts words, all possible (pass)words, no password in particular. > And say that the alphabet is A = {a, b, c} then |A| = 3, the > entropy bits is decided by /dev/urandom, so that doesn't > change either, how can the formula hold for passwords of > different lengths from that alphabet, e.g. "a" (length 1), > "aa" (2), "abc" (3), and so on? The formula returns a length. So the question doesn't make much sense to me. Unless you ask why I don't say "maximum password length" and don't include smaller passwords in the count. That would not significantly change the result though. If these were not the answers you expect I think we are somehow miscommunicating or I just don't express myself very well. All I did was counting how many different words of a given length exist for a fixed alphabet. Or did you not understand why that matters here? Michael.