From: Nikos Mavrogiannopoulos Subject: Re: mv_cesa hash functions Date: Wed, 22 Feb 2012 21:10:46 +0100 Message-ID: <4F454BC6.7000409@gnutls.org> References: <005b01ccf162$64bd0520$2e370f60$@org> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: 'Sebastian Andrzej Siewior' , uri@jdland.co.il, linux-crypto@vger.kernel.org To: Frank Return-path: Received: from mail-wi0-f174.google.com ([209.85.212.174]:40287 "EHLO mail-wi0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752369Ab2BVUFJ (ORCPT ); Wed, 22 Feb 2012 15:05:09 -0500 Received: by wics10 with SMTP id s10so291819wic.19 for ; Wed, 22 Feb 2012 12:05:08 -0800 (PST) In-Reply-To: <005b01ccf162$64bd0520$2e370f60$@org> Sender: linux-crypto-owner@vger.kernel.org List-ID: On 02/22/2012 02:03 PM, Frank wrote: > Hi, > > After doing some trials with hardware crypto offloading through usermode interfaces (af_alg and cryptodev) to Marvell CESA accelerated ciphers and hash functions with the 3.2.4 kernel's mv_cesa in Debian Wheezy on a Marvell Kirkwood system, I've noticed the following kernel output when I load the mv_cesa kernel module: > > [490889.448060] alg: hash: Test 1 failed for mv-sha1 > [490889.452786] 00000000: c1 94 3f 2e a2 41 ce 88 d5 47 07 43 c4 a8 17 5d > [490889.459368] 00000010: 77 e8 47 ca > [490889.464321] alg: hash: Test 1 failed for mv-hmac-sha1 > [490889.469493] 00000000: 06 71 4d 7c cc cc b5 cf 1b d6 c7 ab d0 25 c4 21 > [490889.476068] 00000010: 66 0b 8e 70 > Using SHA1 in a ssl/tls handshake fails in tests with mv_cesa loaded, which might be related to this. It might be related. I noticed the same issue in userspace with /dev/crypto. It can be solved by adding a 50 ms delay after the encryption, decryption and hashing operations. (a delay less than that didn't work). regards, Nikos