From patchwork Mon Oct 12 16:53:39 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Corentin Labbe X-Patchwork-Id: 7377931 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: X-Original-To: patchwork-linux-crypto@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 9D93ABF90C for ; Mon, 12 Oct 2015 16:57:25 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id CBD56208BD for ; Mon, 12 Oct 2015 16:57:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DA4F2208D3 for ; Mon, 12 Oct 2015 16:57:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751726AbbJLQ4p (ORCPT ); Mon, 12 Oct 2015 12:56:45 -0400 Received: from mail-wi0-f173.google.com ([209.85.212.173]:37025 "EHLO mail-wi0-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751883AbbJLQyM (ORCPT ); Mon, 12 Oct 2015 12:54:12 -0400 Received: by wijq8 with SMTP id q8so66846423wij.0; Mon, 12 Oct 2015 09:54:11 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=W2QPCNL4fb9TDO/XH5CTJHYtNKLaE8Eu7cTQ9my9j8w=; b=MQuUvr9sDJW7a5sh42D5/kToq8QozZX63Wa1kWSaA/qsJ8/p2sEiAG/90KkUaRxiH8 djZ0f347Wryh7dcnKyB+vdsZotTtLLvuPSS5ZWi472cZAW0INbtRkt8g8xTmx9Fr2+QC NXoi03Lr2ZGB+xoX83f2Fx6kNh1v44W+FpBxrWtfAkVE8dPgj0bXFgezlbXnBd2CEoCL JFHvjQaIW3hzMZper4sXMD6oDyRcDZ5EM9QoDihWM/w4i8vfn3j5Bpfds5I/7Mg0e2fu gPRLHpOiHP7ssoHs/PnNLuuCLfeRse0Z8GM7c87eq7WFLb7yT5/15rnNy8PAjmDc24oE uRnw== X-Received: by 10.180.206.52 with SMTP id ll20mr14553161wic.48.1444668851446; Mon, 12 Oct 2015 09:54:11 -0700 (PDT) Received: from Red.local (ANice-651-1-429-185.w83-201.abo.wanadoo.fr. [83.201.253.185]) by smtp.googlemail.com with ESMTPSA id s16sm11548506wik.16.2015.10.12.09.54.10 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 12 Oct 2015 09:54:10 -0700 (PDT) From: LABBE Corentin To: herbert@gondor.apana.org.au, davem@davemloft.net, thomas.lendacky@amd.com, geert+renesas@glider.be, ulf.hansson@linaro.org, wsa@the-dreams.de, keescook@chromium.org, maxime.ripard@free-electrons.com Cc: linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org, LABBE Corentin Subject: [PATCH 1/8] crypto: hash: add zero length message hash for shax and md5 Date: Mon, 12 Oct 2015 18:53:39 +0200 Message-Id: <1444668826-6531-2-git-send-email-clabbe.montjoie@gmail.com> X-Mailer: git-send-email 2.4.9 In-Reply-To: <1444668826-6531-1-git-send-email-clabbe.montjoie@gmail.com> References: <1444668826-6531-1-git-send-email-clabbe.montjoie@gmail.com> Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org X-Spam-Status: No, score=-6.8 required=5.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED, DKIM_SIGNED, FREEMAIL_FROM, RCVD_IN_DNSWL_HI, T_DKIM_INVALID, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Some crypto drivers cannot process empty data message and return a precalculated hash for md5/sha1/sha224/sha256. This patch add thoses precalculated hash in include/crypto. Signed-off-by: LABBE Corentin --- include/crypto/md5.h | 5 +++++ include/crypto/sha.h | 20 ++++++++++++++++++++ 2 files changed, 25 insertions(+) diff --git a/include/crypto/md5.h b/include/crypto/md5.h index 146af82..6496ee0 100644 --- a/include/crypto/md5.h +++ b/include/crypto/md5.h @@ -13,6 +13,11 @@ #define MD5_H2 0x98badcfeUL #define MD5_H3 0x10325476UL +static const u8 md5_zero_message_hash[MD5_DIGEST_SIZE] = { + 0xd4, 0x1d, 0x8c, 0xd9, 0x8f, 0x00, 0xb2, 0x04, + 0xe9, 0x80, 0x09, 0x98, 0xec, 0xf8, 0x42, 0x7e, +}; + struct md5_state { u32 hash[MD5_HASH_WORDS]; u32 block[MD5_BLOCK_WORDS]; diff --git a/include/crypto/sha.h b/include/crypto/sha.h index dd7905a..02d7ffb 100644 --- a/include/crypto/sha.h +++ b/include/crypto/sha.h @@ -64,6 +64,26 @@ #define SHA512_H6 0x1f83d9abfb41bd6bULL #define SHA512_H7 0x5be0cd19137e2179ULL +static const u8 sha1_zero_message_hash[SHA1_DIGEST_SIZE] = { + 0xda, 0x39, 0xa3, 0xee, 0x5e, 0x6b, 0x4b, 0x0d, + 0x32, 0x55, 0xbf, 0xef, 0x95, 0x60, 0x18, 0x90, + 0xaf, 0xd8, 0x07, 0x09 +}; + +static const u8 sha224_zero_message_hash[SHA224_DIGEST_SIZE] = { + 0xd1, 0x4a, 0x02, 0x8c, 0x2a, 0x3a, 0x2b, 0xc9, 0x47, + 0x61, 0x02, 0xbb, 0x28, 0x82, 0x34, 0xc4, 0x15, 0xa2, + 0xb0, 0x1f, 0x82, 0x8e, 0xa6, 0x2a, 0xc5, 0xb3, 0xe4, + 0x2f +}; + +static const u8 sha256_zero_message_hash[SHA256_DIGEST_SIZE] = { + 0xe3, 0xb0, 0xc4, 0x42, 0x98, 0xfc, 0x1c, 0x14, + 0x9a, 0xfb, 0xf4, 0xc8, 0x99, 0x6f, 0xb9, 0x24, + 0x27, 0xae, 0x41, 0xe4, 0x64, 0x9b, 0x93, 0x4c, + 0xa4, 0x95, 0x99, 0x1b, 0x78, 0x52, 0xb8, 0x55 +}; + struct sha1_state { u32 state[SHA1_DIGEST_SIZE / 4]; u64 count;