From patchwork Fri Jun 30 06:48:11 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Biggers X-Patchwork-Id: 13297658 X-Patchwork-Delegate: herbert@gondor.apana.org.au 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 5EAA1C0015E for ; Fri, 30 Jun 2023 06:49:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230448AbjF3GtE (ORCPT ); Fri, 30 Jun 2023 02:49:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39146 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229545AbjF3Gs7 (ORCPT ); Fri, 30 Jun 2023 02:48:59 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 646613582; Thu, 29 Jun 2023 23:48:57 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id ED5F5616D7; Fri, 30 Jun 2023 06:48:56 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 3FD5CC433CA; Fri, 30 Jun 2023 06:48:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1688107736; bh=SdK8Jx7ZeCSSRNnAfBP2bIbNyUBe/k14Bu7s+8phFXY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=MwSG6oy+qo3aQcrqjyYTFH0JvZw7AVhNcR+qQeTpz7l+64cex3pEclDd3Y0QYS8pC x1kVCBusFIsH9f+ZhZ45JYvv6G36GtG97PEdi3BQhpbka3RZk2CWbE6HeAetls7PkG yJ21yyYt8pU+PnRJGTzm3N0Rz2oNwyPC98apTVOIoOCpgmAea7l+Wc+i9bSUnmyOtR 0wkJaP9/cAiVQN9ABWtMW6g7EMI+immvA+zOHl8LvkePHP0njiHr/FbwmuFOpF/OdI b+jHJcj5BMq+kudJFdcQr++EhgjFYT/9fboiB5aMt98/omDdFGSdzIt6+FNQZdXKy5 jqucdFK9F8HdQ== From: Eric Biggers To: linux-fscrypt@vger.kernel.org Cc: linux-crypto@vger.kernel.org, Dongsoo Lee Subject: [PATCH 2/2] fscrypt: document the LEA support Date: Thu, 29 Jun 2023 23:48:11 -0700 Message-ID: <20230630064811.22569-3-ebiggers@kernel.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230630064811.22569-1-ebiggers@kernel.org> References: <20230630064811.22569-1-ebiggers@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org From: Eric Biggers Document the LEA encryption support in fscrypt.rst. Signed-off-by: Eric Biggers --- Documentation/filesystems/fscrypt.rst | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/filesystems/fscrypt.rst b/Documentation/filesystems/fscrypt.rst index a624e92f2687f..84fbda668191e 100644 --- a/Documentation/filesystems/fscrypt.rst +++ b/Documentation/filesystems/fscrypt.rst @@ -343,6 +343,7 @@ Currently, the following pairs of encryption modes are supported: - Adiantum for both contents and filenames - AES-128-CBC-ESSIV for contents and AES-128-CTS-CBC for filenames - SM4-XTS for contents and SM4-CTS-CBC for filenames +- LEA-256-XTS for contents and LEA-256-CTS-CBC for filenames Authenticated encryption modes are not currently supported because of the difficulty of dealing with ciphertext expansion. Therefore, @@ -382,6 +383,7 @@ accelerator such as CAAM or CESA that does not support XTS. The remaining mode pairs are the "national pride ciphers": - (SM4-XTS, SM4-CTS-CBC) +- (LEA-256-XTS, LEA-256-CTS-CBC) Generally speaking, these ciphers aren't "bad" per se, but they receive limited security review compared to the usual choices such as