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[209.132.180.67]) by mx.google.com with ESMTP id p91si3925472plb.165.2019.05.24.03.54.29; Fri, 24 May 2019 03:54:44 -0700 (PDT) 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; dkim=pass header.i=@c-s.fr header.s=mail header.b=uuOGo+IA; 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 S2390699AbfEXKy1 (ORCPT + 99 others); Fri, 24 May 2019 06:54:27 -0400 Received: from pegase1.c-s.fr ([93.17.236.30]:41257 "EHLO pegase1.c-s.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390680AbfEXKy1 (ORCPT ); Fri, 24 May 2019 06:54:27 -0400 Received: from localhost (mailhub1-int [192.168.12.234]) by localhost (Postfix) with ESMTP id 459NXx10D0z9v2l5; Fri, 24 May 2019 12:54:25 +0200 (CEST) Authentication-Results: localhost; dkim=pass reason="1024-bit key; insecure key" header.d=c-s.fr header.i=@c-s.fr header.b=uuOGo+IA; dkim-adsp=pass; dkim-atps=neutral X-Virus-Scanned: Debian amavisd-new at c-s.fr Received: from pegase1.c-s.fr ([192.168.12.234]) by localhost (pegase1.c-s.fr [192.168.12.234]) (amavisd-new, port 10024) with ESMTP id aTU46ZUojyhj; Fri, 24 May 2019 12:54:25 +0200 (CEST) Received: from messagerie.si.c-s.fr (messagerie.si.c-s.fr [192.168.25.192]) by pegase1.c-s.fr (Postfix) with ESMTP id 459NXw73syz9v2l4; Fri, 24 May 2019 12:54:24 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=c-s.fr; s=mail; t=1558695265; bh=pphUiu97LBODKLNcJrIM9T+r2noKdopyNPJuHbDkR9M=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=uuOGo+IALXYa6b3BmMjRdzo5rlUkaGHI+CkiLr/g0BsoVDr2jvHjr+0VznyTsuvNo vTfdcKHlvaDe64fURklQImFfwwNSebFa/8PmMeDdN3izUKwihLzNkcDiGsXJxSYgqV Cccu68eKB4rNHTznNV+kVBBF9MwYM1eS1L3oYyhc= Received: from localhost (localhost [127.0.0.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 3193A8B7B1; Fri, 24 May 2019 12:54:26 +0200 (CEST) X-Virus-Scanned: amavisd-new at c-s.fr Received: from messagerie.si.c-s.fr ([127.0.0.1]) by localhost (messagerie.si.c-s.fr [127.0.0.1]) (amavisd-new, port 10023) with ESMTP id XPMOnd9bQOIK; Fri, 24 May 2019 12:54:26 +0200 (CEST) Received: from PO15451 (po15451.idsi0.si.c-s.fr [172.25.231.1]) by messagerie.si.c-s.fr (Postfix) with ESMTP id 16BE78B79E; Fri, 24 May 2019 12:54:26 +0200 (CEST) Subject: Re: another testmgr question To: Kamil Konieczny , Pascal Van Leeuwen , Ard Biesheuvel Cc: "linux-crypto@vger.kernel.org" References: <20190523200557.GA248378@gmail.com> <20190523234853.GC248378@gmail.com> <907eb6a5-dc76-d5ee-eccf-e7bd426a0868@c-s.fr> <1786cc8d-187d-e3ce-376b-e728263b1e68@partner.samsung.com> From: Christophe Leroy Message-ID: <18b2004a-e1df-9bbc-1833-98c09dd89bf8@c-s.fr> Date: Fri, 24 May 2019 12:54:26 +0200 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.7.0 MIME-Version: 1.0 In-Reply-To: <1786cc8d-187d-e3ce-376b-e728263b1e68@partner.samsung.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: fr Content-Transfer-Encoding: 8bit Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org Le 24/05/2019 à 12:43, Kamil Konieczny a écrit : > On 24.05.2019 12:13, Pascal Van Leeuwen wrote: >>> True. Those are the "other" reasons - besides acceleration - to use hardware >>> offload which we often use to sell our IP. >>> But the honest story there is that that only works out for situations >>> where there's enough work to do to make the software overhead for actually >>> starting and managing that work insignificant. [...] > > Hmm, is there any HW which support hash of zero-len message ? > As far as I can see, TALITOS SEC2 does. Christophe