From: sri sowj Subject: Re: communicating from the user space Date: Sun, 22 Feb 2015 18:32:34 +0530 Message-ID: References: <1522393.KEIVXizgKy@tachyon.chronox.de> <1543956.4M98jElNTF@tachyon.chronox.de> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Cc: "linux-crypto@vger.kernel.org" To: Stephan Mueller Return-path: Received: from mail-pa0-f44.google.com ([209.85.220.44]:41934 "EHLO mail-pa0-f44.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752149AbbBVNCf (ORCPT ); Sun, 22 Feb 2015 08:02:35 -0500 Received: by padfb1 with SMTP id fb1so20518553pad.8 for ; Sun, 22 Feb 2015 05:02:35 -0800 (PST) In-Reply-To: <1543956.4M98jElNTF@tachyon.chronox.de> Sender: linux-crypto-owner@vger.kernel.org List-ID: Hi Stephen, It was a great information with respective PF_ALG , I have explored a bit on openssl and algorithms prospect , Please let me know if anything to add to it. openssl crypto engine: below are the steps to enable openssl to communicate using pf/af_alg. #1:git clone http://src.carnivore.it/users/common/af_alg/ #2:cd af_alg/ #3:make #4:sudo cp libaf_alg.so /usr/lib/arm-linux-gnueabi/openssl-1.0.0/engines/ #5:sudo chmod 644 /usr/lib/arm-linux-gnueabi/openssl-1.0.0/engines/libaf_alg.so Algorithms supported by pf/af_alg from user space to test: CIPHERS=aes-128-cbc aes-192-cbc aes-256-cbc des-cbc des-ede3-cbc DIGESTS=md4 md5 sha1 sha224 sha256 sha512 Next step is ,I would like to see the support available to write and test more and more samples/test utilities between PF/AF_ALG and cryptodev . BR, SriSowj On Sat, Feb 21, 2015 at 12:31 PM, Stephan Mueller wrote: > Am Samstag, 21. Februar 2015, 08:39:05 schrieb sri sowj: > > Hi sri, > >> Hi Stephen, >> >> Thank you very much for the information provided. >> >> I will try to explore more on AF_ALG , in between please can you also >> provide information regarding below ? >> #1: how openssl communicates to crypto h/w using PF_ALG > > Search the net, there is an engine available > >> #2: How man algorithms are supported? > > All that the kernel crypto API supports > >> #3: are there any samples to get start with. > > Maybe you look into libkcapi -- there are plenty of examples. >> >> but if you can provide some info regarding cryptodev-linux from the >> openssl prospect it will be more helpful. > > cryptodev-linux is not merged into the kernel and it looks that it never will > considering the presence of AF_ALG >> >> >> BR, >> Srisowj >> >> On Sat, Feb 21, 2015 at 2:28 AM, Stephan Mueller > wrote: >> > Am Samstag, 21. Februar 2015, 01:27:04 schrieb sri sowj: >> > >> > Hi sri, >> > >> >> Hi , >> >> >> >> I want to interact with Crypto Hardware from user space using openssl >> >> like libraries based applications through cryptodev-linux interface. >> >> >> >> it looks like openssl comes with cryptodev-linux support(through >> >> eng_cryptodev.c) . >> >> When I downloaded openssl,eng_cryptodev.c file is available by default. >> >> >> >> below link refers about eng_cryptodev.c for openssl support : >> >> >> >> http://repo.or.cz/w/cryptodev-linux.git/commitdiff/56cc4e3b8b761cb34f928f >> >> 4ee e59755d1f0afc53 >> >> >> >> Note:looks like there are some additional changes done on >> >> eng_cryptodev.c file available in updated openssl source code. >> >> >> >> There seems to be some changes/patches also available recently for >> >> cryptodev-linux,below contains reference information. >> >> >> >> http://rt.openssl.org/Ticket/Display.html?id=2770&user=guest&pass=guest >> >> >> >> >> >> Please let me know if my understanding is incorrect . >> > >> > See AF_ALG and a generic user space library around it: >> > >> > http://www.chronox.de/libkcapi.html >> > >> >> BR, >> >> Srisowj >> >> -- >> >> To unsubscribe from this list: send the line "unsubscribe linux-crypto" >> >> in >> >> the body of a message to majordomo@vger.kernel.org >> >> More majordomo info at http://vger.kernel.org/majordomo-info.html >> > >> > -- >> > Ciao >> > Stephan >> >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-crypto" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html > > > -- > Ciao > Stephan