From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 895D5ECDE5F for ; Thu, 19 Jul 2018 20:17:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 26EDB2084C for ; Thu, 19 Jul 2018 20:17:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 26EDB2084C Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=opteya.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730288AbeGSVBx (ORCPT ); Thu, 19 Jul 2018 17:01:53 -0400 Received: from ou.quest-ce.net ([195.154.187.82]:33943 "EHLO ou.quest-ce.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726519AbeGSVBx (ORCPT ); Thu, 19 Jul 2018 17:01:53 -0400 Received: from [2a01:e35:2e9f:6cb0:857c:11e6:3194:d53d] (helo=test.quest-ce.net) by ou.quest-ce.net with esmtpsa (TLS1.1:RSA_AES_256_CBC_SHA1:256) (Exim 4.80) (envelope-from ) id 1fgFMJ-000APw-Qi; Thu, 19 Jul 2018 22:17:09 +0200 Message-ID: <437d334a02acf3eff96a4f4da6079829f1de1197.camel@opteya.com> From: Yann Droneaud To: "Theodore Y. Ts'o" , Sandy Harris Cc: Linux Crypto Mailing List , Linux Kernel Developers List , labbott@redhat.com Date: Thu, 19 Jul 2018 22:17:03 +0200 In-Reply-To: <20180718173621.GC30706@thunk.org> References: <20180718014344.1309-1-tytso@mit.edu> <20180718015154.GE3489@thunk.org> <20180718173621.GC30706@thunk.org> Organization: OPTEYA Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.28.3 (3.28.3-1.fc28) Mime-Version: 1.0 Content-Transfer-Encoding: 8bit X-SA-Exim-Connect-IP: 2a01:e35:2e9f:6cb0:857c:11e6:3194:d53d X-SA-Exim-Mail-From: ydroneaud@opteya.com Subject: Re: [PATCH] random: addu a config option to trust the CPU's hwrng X-SA-Exim-Version: 4.2.1 (built Mon, 26 Dec 2011 16:24:06 +0000) X-SA-Exim-Scanned: Yes (on ou.quest-ce.net) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi, Le mercredi 18 juillet 2018 à 13:36 -0400, Theodore Y. Ts'o a écrit : > For those people who are super paranoid and want a "true random > number generator" (and the meaning of that is hazy) because a > CRNG is Not Enough, my recommendation these days is that they get > something like an open hardware RNG solution, such as ChaosKey from > Altus Metrum[1]. > > [1] https://altusmetrum.org/ChaosKey/ > I could suggest "Infinite Noise" [1] keys which are also open hardware. They use a different design, based on "modular multiplication" which should be immune to most RF noise, The original model is currently sold out[2] but a fork exists[3]. One can also have a look at OneRNG [4][5] which uses a more usual design but adds a nice EMI shield protection. [1] https://github.com/waywardgeek/infnoise [2] https://www.tindie.com/products/WaywardGeek/infinite-noise-true-random-number-generator/ [3] https://www.tindie.com/products/manueldomke/infinite-noise-trng-true-random-number-generator/ [4] http://onerng.info/ [5] http://moonbaseotago.com/onerng/ Regards. -- Yann Droneaud OPTEYA