From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephan Mueller Subject: Re: Could this be applied to random(4)? Date: Fri, 27 May 2016 20:30:51 +0200 Message-ID: <1536831.omfD4HBPSy@tauon.atsec.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Cc: linux-crypto@vger.kernel.org, Theodore Ts'o , John Denker To: Sandy Harris Return-path: Received: from mail.eperm.de ([89.247.134.16]:34942 "EHLO mail.eperm.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756163AbcE0Say (ORCPT ); Fri, 27 May 2016 14:30:54 -0400 In-Reply-To: Sender: linux-crypto-owner@vger.kernel.org List-ID: Am Freitag, 27. Mai 2016, 13:38:05 schrieb Sandy Harris: Hi Sandy, > A theoretical paper on getting provably excellent randomness from two > relatively weak input sources. > https://www.sciencenews.org/article/new-technique-produces-real-randomness This document describes extractors. Those extractors are intended to combine *independent* sources with weak entropy. None of our sources we have in add_*_randomness are independent. In addition, I am not sure why this research is so hyped. I think that the 3- source extractor described in [1] is more efficient and easier to implement [1] "Extracting Randomness Using Few Independent Sources" by Boaz Barak, Russell Impagliazzo, Avi Wigderson Ciao Stephan