From patchwork Fri Nov 25 12:16:29 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "tianjia.zhang" X-Patchwork-Id: 13055825 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B6BFEC4167D for ; Fri, 25 Nov 2022 12:17:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229757AbiKYMRH (ORCPT ); Fri, 25 Nov 2022 07:17:07 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39200 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229575AbiKYMRD (ORCPT ); Fri, 25 Nov 2022 07:17:03 -0500 Received: from out30-56.freemail.mail.aliyun.com (out30-56.freemail.mail.aliyun.com [115.124.30.56]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5BA184A585; Fri, 25 Nov 2022 04:16:57 -0800 (PST) X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R161e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=ay29a033018045168;MF=tianjia.zhang@linux.alibaba.com;NM=1;PH=DS;RN=11;SR=0;TI=SMTPD_---0VVfHzfl_1669378597; Received: from localhost(mailfrom:tianjia.zhang@linux.alibaba.com fp:SMTPD_---0VVfHzfl_1669378597) by smtp.aliyun-inc.com; Fri, 25 Nov 2022 20:16:38 +0800 From: Tianjia Zhang To: Eric Biggers , "Theodore Y. Ts o" , Jaegeuk Kim , Jonathan Corbet , Jens Axboe , Ard Biesheuvel , linux-fscrypt@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-block@vger.kernel.org Cc: Tianjia Zhang Subject: [PATCH v3 1/2] blk-crypto: Add support for SM4-XTS blk crypto mode Date: Fri, 25 Nov 2022 20:16:29 +0800 Message-Id: <20221125121630.87793-2-tianjia.zhang@linux.alibaba.com> X-Mailer: git-send-email 2.24.3 (Apple Git-128) In-Reply-To: <20221125121630.87793-1-tianjia.zhang@linux.alibaba.com> References: <20221125121630.87793-1-tianjia.zhang@linux.alibaba.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-fscrypt@vger.kernel.org SM4 is a symmetric algorithm widely used in China, and SM4-XTS is also used to encrypt length-preserving data, these algoritms are mandatory in many scenarios. This patch enables the use of SM4-XTS algorithm in block inline encryption, and provides support for fscrypt. Signed-off-by: Tianjia Zhang --- block/blk-crypto.c | 6 ++++++ include/linux/blk-crypto.h | 1 + 2 files changed, 7 insertions(+) diff --git a/block/blk-crypto.c b/block/blk-crypto.c index a496aaef85ba..e44709fc6a08 100644 --- a/block/blk-crypto.c +++ b/block/blk-crypto.c @@ -36,6 +36,12 @@ const struct blk_crypto_mode blk_crypto_modes[] = { .keysize = 32, .ivsize = 32, }, + [BLK_ENCRYPTION_MODE_SM4_XTS] = { + .name = "SM4-XTS", + .cipher_str = "xts(sm4)", + .keysize = 32, + .ivsize = 16, + }, }; /* diff --git a/include/linux/blk-crypto.h b/include/linux/blk-crypto.h index 69b24fe92cbf..26b1b71c3091 100644 --- a/include/linux/blk-crypto.h +++ b/include/linux/blk-crypto.h @@ -13,6 +13,7 @@ enum blk_crypto_mode_num { BLK_ENCRYPTION_MODE_AES_256_XTS, BLK_ENCRYPTION_MODE_AES_128_CBC_ESSIV, BLK_ENCRYPTION_MODE_ADIANTUM, + BLK_ENCRYPTION_MODE_SM4_XTS, BLK_ENCRYPTION_MODE_MAX, };