From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752602AbdK3KLM (ORCPT ); Thu, 30 Nov 2017 05:11:12 -0500 Received: from foss.arm.com ([217.140.101.70]:50212 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752149AbdK3KJr (ORCPT ); Thu, 30 Nov 2017 05:09:47 -0500 From: Gilad Ben-Yossef To: Herbert Xu , "David S. Miller" Cc: Ofir Drang , linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 2/6] crypto: tcrypt: fix AEAD decryption speed test Date: Thu, 30 Nov 2017 10:09:28 +0000 Message-Id: <1512036574-26665-3-git-send-email-gilad@benyossef.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1512036574-26665-1-git-send-email-gilad@benyossef.com> References: <1512036574-26665-1-git-send-email-gilad@benyossef.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The AEAD speed test pretended to support decryption, however that support was broken as decryption requires a valid auth field which the test did not provide. Fix this by running the encryption path once with inout/output sgls switched to calculate the auth field prior to performing decryption speed tests. Signed-off-by: Gilad Ben-Yossef --- crypto/tcrypt.c | 30 +++++++++++++++++++++++++++++- 1 file changed, 29 insertions(+), 1 deletion(-) diff --git a/crypto/tcrypt.c b/crypto/tcrypt.c index d1fd033..56fb6a6 100644 --- a/crypto/tcrypt.c +++ b/crypto/tcrypt.c @@ -327,10 +327,30 @@ static void test_aead_speed(const char *algo, int enc, unsigned int secs, sg_set_buf(&sg[0], assoc, aad_size); sg_set_buf(&sgout[0], assoc, aad_size); + aead_request_set_ad(req, aad_size); + + if (!enc) { + + /* + * For decryption we need a proper auth so + * we do the encryption path once with buffers + * reversed (input <-> output) to calculate it + */ + aead_request_set_crypt(req, sgout, sg, + *b_size, iv); + ret = do_one_aead_op(req, + crypto_aead_encrypt(req)); + + if (ret) { + pr_err("calculating auth failed failed (%d)\n", + ret); + break; + } + } + aead_request_set_crypt(req, sg, sgout, *b_size + (enc ? 0 : authsize), iv); - aead_request_set_ad(req, aad_size); if (secs) ret = test_aead_jiffies(req, enc, *b_size, @@ -1564,16 +1584,24 @@ static int do_test(const char *alg, u32 type, u32 mask, int m) NULL, 0, 16, 16, aead_speed_template_20); test_aead_speed("gcm(aes)", ENCRYPT, sec, NULL, 0, 16, 8, speed_template_16_24_32); + test_aead_speed("rfc4106(gcm(aes))", DECRYPT, sec, + NULL, 0, 16, 16, aead_speed_template_20); + test_aead_speed("gcm(aes)", DECRYPT, sec, + NULL, 0, 16, 8, speed_template_16_24_32); break; case 212: test_aead_speed("rfc4309(ccm(aes))", ENCRYPT, sec, NULL, 0, 16, 16, aead_speed_template_19); + test_aead_speed("rfc4309(ccm(aes))", DECRYPT, sec, + NULL, 0, 16, 16, aead_speed_template_19); break; case 213: test_aead_speed("rfc7539esp(chacha20,poly1305)", ENCRYPT, sec, NULL, 0, 16, 8, aead_speed_template_36); + test_aead_speed("rfc7539esp(chacha20,poly1305)", DECRYPT, sec, + NULL, 0, 16, 8, aead_speed_template_36); break; case 214: -- 2.7.4