Received: by 2002:a25:8b91:0:0:0:0:0 with SMTP id j17csp955670ybl; Thu, 12 Dec 2019 07:31:02 -0800 (PST) X-Google-Smtp-Source: APXvYqyJ5ol8xXegrbcX//vhZ5r1rs1XBgFGJtEs3oxhIiilfbqI6dKJJrLQ4iEHK9R8NhY2qcnc X-Received: by 2002:a05:6830:2087:: with SMTP id y7mr8270942otq.96.1576164662875; Thu, 12 Dec 2019 07:31:02 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1576164662; cv=none; d=google.com; s=arc-20160816; b=T1bMo+fOw7A9Sw5eXg7lRnsKgnihJhAuCbDy2T0OI/UCanuJZrwIR4YkI7Ih92wPBr KRIvFKnVJDu7k82uebWZxYCeRk1e7QvC7RGfz9ZHW6RgrvXs4X58ADxjdyxuLEhWijEP mIIWaPvcLHTHwAipNy69/bNLVaLDXt3F9ixUClaFGhZGUyZPklPURVf0qlPtWSyg6kaW toaZq46I2MPKZEGNQM/eaftn+we7xEFF6nlJavmo20OsGKa0itBaRKiuyCvwGMIMLrSB N0grwvZIKo5WFk3Q7dKJTBlPywSER2PGoVC4ZBHlQKQVjDkZgtCIFLH3D4UH3EOw9s5A Snog== 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:mime-version :user-agent:references:in-reply-to:date:cc:to:from:subject :message-id; bh=C5xIsp0YL7epY4Uog2jyMCCKyCUwKard8kS2cK7Rh7k=; b=IjThQT3Stts9RtqKLoYQxj2chtz111U1VjjvW1jK3CSW6YsdtaSBGJ/ha0q9LASmSM dTpyFsC98qO/SKOKc2Uux2fsBpreWpx3xSn0mW7zNznxHicd5atkp3BDqn2B2KLVEQ7U GOKlgwK02N4vNY378/g5MKv7G3Og9vRgxL2tlskt6hi3p4B3afEyZxdV22ig940IZo5V yR01WRKuEIZg118ov/Gb74QyEbdNLSxyy7vSrLh/azSTm/ZL/NhsA+kx4JHiiRuuRi1p Winmm1hfnWRSNpSTMS5uTAonxMCgwmPBQmvv2D+H4X16cD4MT3VboPG9t2ojmcLy2gqE ihvQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-crypto-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-crypto-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id x7si3248046oto.264.2019.12.12.07.30.44; Thu, 12 Dec 2019 07:31:02 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-crypto-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-crypto-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-crypto-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729097AbfLLPan (ORCPT + 99 others); Thu, 12 Dec 2019 10:30:43 -0500 Received: from sitav-80046.hsr.ch ([152.96.80.46]:54238 "EHLO mail.strongswan.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728939AbfLLPan (ORCPT ); Thu, 12 Dec 2019 10:30:43 -0500 Received: from obook (unknown [IPv6:2a01:2a8:8500:5c01:6946:d015:47d4:9c3d]) by mail.strongswan.org (Postfix) with ESMTPSA id 9E66A401A2; Thu, 12 Dec 2019 16:30:41 +0100 (CET) Message-ID: <7d30f7c912a5565b1c26729b438c1a95286fcf56.camel@strongswan.org> Subject: Re: [PATCH crypto-next v2 1/3] crypto: poly1305 - add new 32 and 64-bit generic versions From: Martin Willi To: "Jason A. Donenfeld" , Ard Biesheuvel Cc: Linux Crypto Mailing List Date: Thu, 12 Dec 2019 16:30:41 +0100 In-Reply-To: References: <20191211170936.385572-1-Jason@zx2c4.com> <20191212093008.217086-1-Jason@zx2c4.com> Content-Type: text/plain; charset="UTF-8" User-Agent: Evolution 3.34.1-2 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org > The principle advantage of this patchset is the 64x64 code If there are platforms / code paths where this code matters, all fine. But the 64-bit version adds a lot of complexity because of the different state representation and the conversion between these states. I just don't think the gain (?) justifies that added complexity. Martin