From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.io/gmane.emacs.gnus.general/49757 Path: main.gmane.org!not-for-mail From: Ted Zlatanov Newsgroups: gmane.emacs.gnus.general Subject: Re: GroupLens (gnus-gl.el) Date: Sat, 01 Feb 2003 20:34:28 -0500 Organization: =?koi8-r?q?=F4=C5=CF=C4=CF=D2=20=FA=CC=C1=D4=C1=CE=CF=D7?= @ Cienfuegos Sender: owner-ding@hpc.uh.edu Message-ID: References: <4nlm161ks2.fsf@lockgroove.bwh.harvard.edu> NNTP-Posting-Host: main.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: main.gmane.org 1044149039 3781 80.91.224.249 (2 Feb 2003 01:23:59 GMT) X-Complaints-To: usenet@main.gmane.org NNTP-Posting-Date: Sun, 2 Feb 2003 01:23:59 +0000 (UTC) Return-path: Original-Received: from malifon.math.uh.edu ([129.7.128.13]) by main.gmane.org with esmtp (Exim 3.35 #1 (Debian)) id 18f8rW-0000yr-00 for ; Sun, 02 Feb 2003 02:23:58 +0100 Original-Received: from sina.hpc.uh.edu ([129.7.128.10] ident=lists) by malifon.math.uh.edu with esmtp (Exim 3.20 #1) id 18f8t2-00019C-00; Sat, 01 Feb 2003 19:25:32 -0600 Original-Received: by sina.hpc.uh.edu (TLB v0.09a (1.20 tibbs 1996/10/09 22:03:07)); Sat, 01 Feb 2003 19:26:29 -0600 (CST) Original-Received: from sclp3.sclp.com (sclp3.sclp.com [66.230.238.2]) by sina.hpc.uh.edu (8.9.3/8.9.3) with SMTP id TAA09302 for ; Sat, 1 Feb 2003 19:26:18 -0600 (CST) Original-Received: (qmail 74617 invoked by alias); 2 Feb 2003 01:25:17 -0000 Original-Received: (qmail 74612 invoked from network); 2 Feb 2003 01:25:17 -0000 Original-Received: from ns2.beld.net (208.229.215.82) by 66.230.238.6 with SMTP; 2 Feb 2003 01:25:17 -0000 Original-Received: from heechee.beld.net (dhcp-0-30-bd-1-93-b1.cpe.beld.net [24.233.67.61]) by ns2.beld.net (Postfix) with ESMTP id 601523B883 for ; Sat, 1 Feb 2003 20:25:15 -0500 (EST) Original-To: ding@gnus.org X-Face: bd.DQ~'29fIs`T_%O%C\g%6jW)yi[zuz6;d4V0`@y-~$#3P_Ng{@m+e4o<4P'#(_GJQ%TT= D}[Ep*b!\e,fBZ'j_+#"Ps?s2!4H2-Y"sx" Mail-Followup-To: ding@gnus.org In-Reply-To: (Lars Magne Ingebrigtsen's message of "Sun, 02 Feb 2003 01:24:30 +0100") User-Agent: Gnus/5.090015 (Oort Gnus v0.15) Emacs/21.2 (i686-pc-linux-gnu) Precedence: list X-Majordomo: 1.94.jlt7 Xref: main.gmane.org gmane.emacs.gnus.general:49757 X-Report-Spam: http://spam.gmane.org/gmane.emacs.gnus.general:49757 On Sun, 02 Feb 2003, larsi@gnus.org wrote: > It's a more subtle tool than, er, "flat" moderation, but it's still > pretty easy to poison (unless you use some kind of authorization > system, or keep it "in the family"). Hacking up a system that would > inject a gazillion fake profiles that would make it likely that your > important MAKE VIAGRA NOW messages rate highly isn't particularly > difficult. Probably. So let's build an authorization system, using the standard "put this number in a noisy image and make the user type it back" technique. You'll have to register through it, and the system could also require a PGP message signature every time you submit a score (not for the computational burden, but because spammers are not likely to bother with it at that point). It will be difficult to set up, and that will be a Good Thing IMO. Ted