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 159D8C43603 for ; Thu, 12 Dec 2019 15:30:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E778A206A5 for ; Thu, 12 Dec 2019 15:30:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729097AbfLLPan (ORCPT ); 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