From nobody Thu Nov 6 06:13:29 2025 Delivered-To: importer@patchew.org Received-SPF: pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) client-ip=208.118.235.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Authentication-Results: mx.zohomail.com; spf=pass (zoho.com: domain of gnu.org designates 208.118.235.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) by mx.zohomail.com with SMTPS id 1539685089650639.8444295232042; Tue, 16 Oct 2018 03:18:09 -0700 (PDT) Received: from localhost ([::1]:57018 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gCMQS-00010W-Hv for importer@patchew.org; Tue, 16 Oct 2018 06:18:08 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:44867) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gCMIC-0002xl-7P for qemu-devel@nongnu.org; Tue, 16 Oct 2018 06:09:37 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gCMIA-0006Pj-W7 for qemu-devel@nongnu.org; Tue, 16 Oct 2018 06:09:36 -0400 Received: from mx1.redhat.com ([209.132.183.28]:44032) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gCMIA-0006O5-Ic for qemu-devel@nongnu.org; Tue, 16 Oct 2018 06:09:34 -0400 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 9C517307D852; Tue, 16 Oct 2018 10:09:33 +0000 (UTC) Received: from localhost.localdomain.com (ovpn-117-4.ams2.redhat.com [10.36.117.4]) by smtp.corp.redhat.com (Postfix) with ESMTP id B069618786; Tue, 16 Oct 2018 10:09:32 +0000 (UTC) From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Date: Tue, 16 Oct 2018 11:09:18 +0100 Message-Id: <20181016100918.21030-9-berrange@redhat.com> In-Reply-To: <20181016100918.21030-1-berrange@redhat.com> References: <20181016100918.21030-1-berrange@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.48]); Tue, 16 Oct 2018 10:09:33 +0000 (UTC) Content-Transfer-Encoding: quoted-printable X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v2 8/8] crypto: add testing for unaligned buffers with XTS cipher mode X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Alberto Garcia Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail: RDMRC_1 RSF_0 Z_629925259 SPT_0 Content-Type: text/plain; charset="utf-8" Validate that the XTS cipher mode will correctly operate with plain text, cipher text and IV buffers that are not 64-bit aligned. Signed-off-by: Daniel P. Berrang=C3=A9 Reviewed-by: Alberto Garcia --- tests/test-crypto-xts.c | 86 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 86 insertions(+) diff --git a/tests/test-crypto-xts.c b/tests/test-crypto-xts.c index 81606d90ad..6fb61cf635 100644 --- a/tests/test-crypto-xts.c +++ b/tests/test-crypto-xts.c @@ -416,6 +416,88 @@ static void test_xts_split(const void *opaque) } =20 =20 +static void test_xts_unaligned(const void *opaque) +{ +#define BAD_ALIGN 3 + const QCryptoXTSTestData *data =3D opaque; + uint8_t in[512 + BAD_ALIGN], out[512 + BAD_ALIGN]; + uint8_t Torg[16], T[16 + BAD_ALIGN]; + uint64_t seq; + struct TestAES aesdata; + struct TestAES aestweak; + + AES_set_encrypt_key(data->key1, data->keylen / 2 * 8, &aesdata.enc); + AES_set_decrypt_key(data->key1, data->keylen / 2 * 8, &aesdata.dec); + AES_set_encrypt_key(data->key2, data->keylen / 2 * 8, &aestweak.enc); + AES_set_decrypt_key(data->key2, data->keylen / 2 * 8, &aestweak.dec); + + seq =3D data->seqnum; + STORE64L(seq, Torg); + memset(Torg + 8, 0, 8); + + /* IV not aligned */ + memcpy(T + BAD_ALIGN, Torg, 16); + memcpy(in, data->PTX, data->PTLEN); + xts_encrypt(&aesdata, &aestweak, + test_xts_aes_encrypt, + test_xts_aes_decrypt, + T + BAD_ALIGN, data->PTLEN, out, in); + + g_assert(memcmp(out, data->CTX, data->PTLEN) =3D=3D 0); + + /* plain text not aligned */ + memcpy(T, Torg, 16); + memcpy(in + BAD_ALIGN, data->PTX, data->PTLEN); + xts_encrypt(&aesdata, &aestweak, + test_xts_aes_encrypt, + test_xts_aes_decrypt, + T, data->PTLEN, out, in + BAD_ALIGN); + + g_assert(memcmp(out, data->CTX, data->PTLEN) =3D=3D 0); + + /* cipher text not aligned */ + memcpy(T, Torg, 16); + memcpy(in, data->PTX, data->PTLEN); + xts_encrypt(&aesdata, &aestweak, + test_xts_aes_encrypt, + test_xts_aes_decrypt, + T, data->PTLEN, out + BAD_ALIGN, in); + + g_assert(memcmp(out + BAD_ALIGN, data->CTX, data->PTLEN) =3D=3D 0); + + + /* IV not aligned */ + memcpy(T + BAD_ALIGN, Torg, 16); + memcpy(in, data->CTX, data->PTLEN); + xts_decrypt(&aesdata, &aestweak, + test_xts_aes_encrypt, + test_xts_aes_decrypt, + T + BAD_ALIGN, data->PTLEN, out, in); + + g_assert(memcmp(out, data->PTX, data->PTLEN) =3D=3D 0); + + /* cipher text not aligned */ + memcpy(T, Torg, 16); + memcpy(in + BAD_ALIGN, data->CTX, data->PTLEN); + xts_decrypt(&aesdata, &aestweak, + test_xts_aes_encrypt, + test_xts_aes_decrypt, + T, data->PTLEN, out, in + BAD_ALIGN); + + g_assert(memcmp(out, data->PTX, data->PTLEN) =3D=3D 0); + + /* plain text not aligned */ + memcpy(T, Torg, 16); + memcpy(in, data->CTX, data->PTLEN); + xts_decrypt(&aesdata, &aestweak, + test_xts_aes_encrypt, + test_xts_aes_decrypt, + T, data->PTLEN, out + BAD_ALIGN, in); + + g_assert(memcmp(out + BAD_ALIGN, data->PTX, data->PTLEN) =3D=3D 0); +} + + int main(int argc, char **argv) { size_t i; @@ -437,6 +519,10 @@ int main(int argc, char **argv) g_test_add_data_func(path, &test_data[i], test_xts_split); g_free(path); } + + path =3D g_strdup_printf("%s/unaligned", test_data[i].path); + g_test_add_data_func(path, &test_data[i], test_xts_unaligned); + g_free(path); } =20 return g_test_run(); --=20 2.17.2