Received: by 2002:a25:23cc:0:0:0:0:0 with SMTP id j195csp12848ybj; Fri, 8 May 2020 05:29:43 -0700 (PDT) X-Google-Smtp-Source: APiQypLWYZLczSouSkrAsLDvgusDXfCqE6j1kyYJ/gBU+LjmdDABrgBikcv7SCoE6s8PipQkdYDz X-Received: by 2002:a17:906:e90:: with SMTP id p16mr1705414ejf.14.1588940983555; Fri, 08 May 2020 05:29:43 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1588940983; cv=none; d=google.com; s=arc-20160816; b=h51SkFj+8See+cvWaa2NRi2+RbP7HRwvMwt7kcP6TdvyuKOCnJSIOhBBupOzy3ELGj tuCDWT1GA3Y5Jd34YTMglO/CoZ/OlkTlDnb1zeFXVNev2XJJvYt5n2vwGPUFfvylYi5X KjDSbyhi3e/2E20JH4i/JprxzG+McxQKzk02sNGSc/yzuvctQ86Mop7gVcpGy9sev6O4 P8rVgIuFc2b4XLy15Oh2UkHTaKdF/omeIzGNhhchz67wlpLU2kOrHwqXUAvf/2EduVGM V6pFFkIkKH1UcTmqx7SAlVU/3D+Lt/vaVUS/dnk2jI4jeJlwyJzm+fh+Dnv2ox6N6n5r T2YA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:references :in-reply-to:message-id:date:subject:cc:to:from; bh=S9dWGDq8/CeWHVxvI8UvZtrGNehWx3LsXBJzPVRe0RE=; b=PRtqVzxkdIpavKEgvYnIOPi9DnONNNv5ZQhDNpPPzWEgB8N70QT1NwVwSB6Y61x9el JctZEcSft2KMnfYcLu0P8pbz99FKfNX8gQdpFaWDAWKHWUMOHc36f+Z9uMfRcuiatumJ tcNQm5WIEazEFZ0nI8LRRg64koKIqhgpD3Nrgz0B5jEFS0PxQUAbdH9aoOfsiJAwUFTu U0aJgQohNS+KhNg3bu42UgEdR3gSqDaLv97fkQhLjXqBpVJ5rX+enEqRrA4lqyQ+mCVr fdHRVoE+GDOaua+RFYbmKqlnx5BUftkBVSrVMlYBLWbk8+uMSJUAek1hABD1Xs0voHN6 KTEQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-crypto-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-crypto-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id b89si909580edf.345.2020.05.08.05.29.19; Fri, 08 May 2020 05:29:43 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-crypto-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-crypto-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-crypto-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726627AbgEHM0u (ORCPT + 99 others); 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) X-Spam-Level: X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,NO_RECEIVED, NO_RELAYS autolearn=unavailable autolearn_force=no version=3.4.2 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