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_HELO_NONE,SPF_PASS autolearn=no 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 4CC63C38A2A for ; Fri, 8 May 2020 12:26:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2D5E1207DD for ; Fri, 8 May 2020 12:26:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726627AbgEHM0u (ORCPT ); Fri, 8 May 2020 08:26:50 -0400 Received: from mail.thorsis.com ([92.198.35.195]:60383 "EHLO mail.thorsis.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726636AbgEHM0u (ORCPT ); Fri, 8 May 2020 08:26:50 -0400 Received: from localhost (localhost [127.0.0.1]) by mail.thorsis.com (Postfix) with ESMTP id 474D42A4F for ; Fri, 8 May 2020 14:26:49 +0200 (CEST) X-Virus-Scanned: Debian amavisd-new at mail.thorsis.com Received: from mail.thorsis.com ([127.0.0.1]) by localhost (mail.thorsis.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 0LUapmlvCnia for ; Fri, 8 May 2020 14:26:49 +0200 (CEST) Received: by mail.thorsis.com (Postfix, from userid 109) id 1A7EC4B41; Fri, 8 May 2020 14:26:45 +0200 (CEST) From: Alexander Dahl To: linux-crypto@vger.kernel.org Cc: Stephan Mueller Subject: Re: jitterentropy_rng on armv5 embedded target Date: Fri, 08 May 2020 14:26:41 +0200 Message-ID: <2904279.2zIEgBPu8l@ada> In-Reply-To: <8028774.qcRHhbuxM6@tauon.chronox.de> References: <2567555.LKkejuagh6@ada> <2049720.SxWqT2AVQ6@ada> <8028774.qcRHhbuxM6@tauon.chronox.de> Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Hello, Am Freitag, 8. Mai 2020, 14:22:02 CEST schrieb Stephan Mueller: > Am Freitag, 8. Mai 2020, 14:17:25 CEST schrieb Alexander Dahl: > > Okay and DRBG has nothing to do with /dev/random ? > > Nope, it is used as part of the kernel crypto API and its use cases. > > > Then where do the random > > numbers for that come from (in the current or previous kernels without > > your > > new lrng)? > > The DRBG is seeded from get_random_bytes and the Jitter RNG. Oh, I was not precise enough. I wanted to know where /dev/random gets its numbers from. As far as I understood now: not from DRBG? (Which is sufficient knowledge for my current problem.) Greets Alex