From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.180.0/23 X-Spam-Status: No, score=-3.1 required=3.0 tests=BAYES_00,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_HI,RP_MATCHES_RCVD,T_DKIM_INVALID shortcircuit=no autolearn=ham autolearn_force=no version=3.4.0 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by dcvr.yhbt.net (Postfix) with ESMTP id 0C0451F5FB for ; Mon, 27 Feb 2017 15:04:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751638AbdB0PEe (ORCPT ); Mon, 27 Feb 2017 10:04:34 -0500 Received: from ud10.udmedia.de ([194.117.254.50]:33954 "EHLO mail.ud10.udmedia.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751478AbdB0PEc (ORCPT ); Mon, 27 Feb 2017 10:04:32 -0500 X-Greylist: delayed 1166 seconds by postgrey-1.27 at vger.kernel.org; Mon, 27 Feb 2017 10:04:31 EST DKIM-Signature: v=1; a=rsa-sha256; c=simple; d=trippelsdorf.de; h=date :from:to:cc:subject:message-id:references:mime-version :content-type:in-reply-to; s=k1; bh=nh48G9j7NHBibi7r5xixLII2JnCJ YWAIeoil1x7904w=; b=S5M6m8ZtqBRQa0dAqBNqQGXffrWJn+7gK89KfwywAEth FJ3olqKcOlzShMhqsX0uBPFKoTL6xyWOw58mJwtY1k74Q2PdYQQyLn9H3Ne+CRc3 VTxwtmz8sjxeJEO6/J1zSxkt6XkMnjmNoh7yToYAaSPdEcVhO+w6PfOFd0zkXx4= Received: (qmail 21877 invoked from network); 27 Feb 2017 15:37:48 +0100 Received: from ip5b405f78.dynamic.kabel-deutschland.de (HELO x4) (ud10?360p3@91.64.95.120) by mail.ud10.udmedia.de with ESMTPSA (ECDHE-RSA-AES256-SHA encrypted, authenticated); 27 Feb 2017 15:37:48 +0100 Date: Mon, 27 Feb 2017 15:37:47 +0100 From: Markus Trippelsdorf To: Ian Jackson Cc: Jeff King , =?iso-8859-1?Q?=C6var_Arnfj=F6r=F0?= Bjarmason , Linus Torvalds , "brian m. carlson" , Jason Cooper , ankostis , Junio C Hamano , Git Mailing List , Stefan Beller , David Lang , Joey Hess Subject: Re: Why BLAKE2? Message-ID: <20170227143747.GB297@x4> References: <20170226001607.GH11350@io.lakedaemon.net> <20170226173810.fp2tqikrm4nzu4uk@genre.crustytoothpaste.net> <20170226215220.jckz6yzgben4zbyz@sigill.intra.peff.net> <22708.8913.864049.452252@chiark.greenend.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <22708.8913.864049.452252@chiark.greenend.org.uk> Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org On 2017.02.27 at 13:00 +0000, Ian Jackson wrote: > > For brevity I will write `SHA' for hashing with SHA-1, using current > unqualified object names, and `BLAKE' for hasing with BLAKE2b, using > H object names. Why do you choose BLAKE2? SHA-2 is generally considered still fine and would be the obvious choice. And if you want to be adventurous then SHA-3 (Keccak) would be the next logical candidate. -- Markus