From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mp12.migadu.com ([2001:41d0:8:6d80::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by ms5.migadu.com with LMTPS id oHPDNzRlZmN2fAEAbAwnHQ (envelope-from ) for ; Sat, 05 Nov 2022 14:29:24 +0100 Received: from aspmx1.migadu.com ([2001:41d0:8:6d80::]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) by mp12.migadu.com with LMTPS id YLudNzRlZmOvJwEAauVa8A (envelope-from ) for ; Sat, 05 Nov 2022 14:29:24 +0100 Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by aspmx1.migadu.com (Postfix) with ESMTPS id 8F14D255E9 for ; Sat, 5 Nov 2022 14:29:24 +0100 (CET) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1orJEX-0006P5-3G; Sat, 05 Nov 2022 09:29:13 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1orJEV-0006Ox-Dx for guix-devel@gnu.org; Sat, 05 Nov 2022 09:29:11 -0400 Received: from mira.cbaines.net ([212.71.252.8]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1orJET-0000AR-Py for guix-devel@gnu.org; Sat, 05 Nov 2022 09:29:11 -0400 Received: from localhost (host-82-184-251-30.business.telecomitalia.it [82.184.251.30]) by mira.cbaines.net (Postfix) with ESMTPSA id 4FD6E27BBE9; Sat, 5 Nov 2022 13:29:08 +0000 (GMT) Received: from felis (localhost [127.0.0.1]) by localhost (OpenSMTPD) with ESMTP id 067e75f3; Sat, 5 Nov 2022 13:29:06 +0000 (UTC) References: <86zgd5vb0m.fsf@gmail.com> User-agent: mu4e 1.8.9; emacs 28.1 From: Christopher Baines To: zimoun Cc: guix-devel@gnu.org Subject: Re: Reproducible Builds Summit 2022 Date: Sat, 05 Nov 2022 14:25:38 +0100 In-reply-to: <86zgd5vb0m.fsf@gmail.com> Message-ID: <87mt95h6n3.fsf@cbaines.net> MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha512; protocol="application/pgp-signature" Received-SPF: pass client-ip=212.71.252.8; envelope-from=mail@cbaines.net; helo=mira.cbaines.net X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: guix-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "Guix-devel" Errors-To: guix-devel-bounces+larch=yhetil.org@gnu.org X-Migadu-Flow: FLOW_IN X-Migadu-Country: US ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=yhetil.org; s=key1; t=1667654964; h=from:from:sender:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:in-reply-to:in-reply-to: references:references:list-id:list-help:list-unsubscribe: list-subscribe:list-post; bh=BAHu2AOn4i5wyjZ45ih+nCt+bpTnWESb/Ho+fxy/7XM=; b=LTSIV3nGCl+E+vKhBVV3klaEPvC28GCxLe+AS6d+J57fyY0CBrxyD3oNhE3wq/9rIKlc+F /AXibNnNIIjNYvo9e0MK0h8MIG35/t1hsMBWEECBTRql+gvNgJuaunuqHENqPFRXZU6fLI MRX315XIRvkZHry5rs0l//9KExiMTUazaOMPNuxcx8ExjHoyB6ZminNNXhR1D3ZNckro5x lO9uNpoT/wXB1ZYwN6VYBNotuIkrsAR4V+fhiYwdukHvFJtjeewCwGOqrI2Dn3BVlLWft3 Y3oWpIj1qAhziKd+tsreZ4fQtnX2bfVCN6zFTK57IbCbEimJFVuyJxkNCcE/Bw== ARC-Seal: i=1; s=key1; d=yhetil.org; t=1667654964; a=rsa-sha256; cv=none; b=ufqBhyPOVWNswfvhLwMAIuKuYsEVK3T9j4OK0T9GiR+zA2lwBEfh4fDgCEQUOTRs7wwwPg CrFjg/2qU+ht1izaid7njvH9cWNslLf4hYUMv93hZfCtYlu3hCtfm7bb+AQRXnTTaSIp32 2quxuRV9TyckLdIMfhgaZbiKyvNKL3u9uAAYzAGt5nDRCK/ppdskaD+/qO/fG7HKxt2rHl Lsy88p4qsSRL9avpfmqgFO57gVEAn+ofrjdzBHVdK9T8lttNk23z/wvohT5YEGtrzaXwQ9 Har76WSbydmVD1OP9nq/01UKalDMor8+nXWiZn8OO7Ba/B//PnrpFDQrT0iDxA== ARC-Authentication-Results: i=1; aspmx1.migadu.com; dkim=none; dmarc=none; spf=pass (aspmx1.migadu.com: domain of "guix-devel-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-devel-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: -3.90 Authentication-Results: aspmx1.migadu.com; dkim=none; dmarc=none; spf=pass (aspmx1.migadu.com: domain of "guix-devel-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="guix-devel-bounces+larch=yhetil.org@gnu.org" X-Migadu-Queue-Id: 8F14D255E9 X-Spam-Score: -3.90 X-Migadu-Scanner: scn0.migadu.com X-TUID: uB5ZaTL+8mYk --=-=-= Content-Type: text/plain zimoun writes: > Really cool! Thank you for the heads-up. > > On Thu, 03 Nov 2022 at 15:44, Efraim Flashner wrote: > >> We should also continue working on implementing a >> change in the ACL to allow requiring a K of N agreement between >> different substitute servers that a build is correct^2. > > I am not a specialist about consensus algorithm so maybe I am totally > out of topic. This K-of-N agreement looks like a Proof of Stake [1]. I think it's useful to keep this simple. Going back to [1], currently we only support users trusting substitutes if they're signed by any key they trust. I'd like to see support for more complex policies, like only trusting substitutes if there's a valid signature from two substitute servers (two different keys). So trusting substitutes that have been built by two substitute servers, and they've come to the same result. 1: https://lists.gnu.org/archive/html/guix-devel/2020-06/msg00179.html --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQKlBAEBCgCPFiEEPonu50WOcg2XVOCyXiijOwuE9XcFAmNmZSBfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDNF ODlFRUU3NDU4RTcyMEQ5NzU0RTBCMjVFMjhBMzNCMEI4NEY1NzcRHG1haWxAY2Jh aW5lcy5uZXQACgkQXiijOwuE9XfjNBAAmAUB7oxGher+46Uq2oJrltMP+g+n9oLH pNSHAWZ35B27c/q1vu4tfYN+04T2Z/8o6Uvmbmp8J+/A6s6r55V9Ehj0Kux/6zjY RzJsOlP1376sUNeWyff7PhYB37FRdujslLGLgyQrzZT9zH0+yf8srFysO+5lQbR6 qKyEGKMM3Jmtgev8ZH+OSoMBzDWcVo6NDu+7O+p62pHIy2RlSg1rJNP2+Qp/0Mch upZrVb6TAEwBLfZOqYqrt6ph9hiI7fuRfWXTGq5Pkw4mjgKbTuHKbrkaNnjObCx8 1xGaeo9ANC7B/hCd2RK/9AKAlw+/rWCCOGa3tn96pnQCI0YoTQ0AcK+QYPwjsfVV rpuEIRr7Uek+6aok0v8fHBfs6hvaHq2MyM7XUSfyZTXJOxFAYEcsH6R5f32t50cH 3iaZflqucFSbwMeM59t2Aqn7XzhNwmmwFzqmkcbTxwnQXDcqvwnIppfrzFhU3pE+ 7CLo58Gl3HhQ+Y2fHeMr7qFiUGv1vYl+Hh+f1stFCQB3p4t+AohslDRjkr6mwpF2 tP0GCIMYGwKZvPnqn86QnOdjmu6YytricGKLxbN5IKtCwoEV3zFRKHraWNlQV/dw GNFTmCLPUslTqkmQWSlDLnYqX8yfHiqVsEKr6/E/on41GzRUoDJnb5xjRXpIC/as 4eE3Io5y8Hs= =26GP -----END PGP SIGNATURE----- --=-=-=--