From patchwork Sat Aug 17 14:24:34 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Hans de Goede X-Patchwork-Id: 11099093 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 32AD1912 for ; Sat, 17 Aug 2019 14:25:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2220A289D2 for ; Sat, 17 Aug 2019 14:25:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 13D8828A14; Sat, 17 Aug 2019 14:25:12 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1E632289D2 for ; Sat, 17 Aug 2019 14:25:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726363AbfHQOZC (ORCPT ); Sat, 17 Aug 2019 10:25:02 -0400 Received: from mx1.redhat.com ([209.132.183.28]:38904 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726357AbfHQOY7 (ORCPT ); Sat, 17 Aug 2019 10:24:59 -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 EBA221E201E; Sat, 17 Aug 2019 14:24:58 +0000 (UTC) Received: from shalem.localdomain.com (ovpn-116-22.ams2.redhat.com [10.36.116.22]) by smtp.corp.redhat.com (Postfix) with ESMTP id 2FC774E; Sat, 17 Aug 2019 14:24:56 +0000 (UTC) From: Hans de Goede To: Herbert Xu , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H . Peter Anvin" , Heiko Carstens , Vasily Gorbik , Christian Borntraeger Cc: Hans de Goede , Eric Biggers , Andy Lutomirski , Ard Biesheuvel , linux-crypto@vger.kernel.org, x86@kernel.org, linux-s390@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 6/7] crypto: sha256 - Add sha224 support to sha256 library code Date: Sat, 17 Aug 2019 16:24:34 +0200 Message-Id: <20190817142435.8532-7-hdegoede@redhat.com> In-Reply-To: <20190817142435.8532-1-hdegoede@redhat.com> References: <20190817142435.8532-1-hdegoede@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-4.6.2 (mx1.redhat.com [10.5.110.71]); Sat, 17 Aug 2019 14:24:59 +0000 (UTC) Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Add sha224 support to the lib/crypto/sha256 library code. This will allow us to replace both the sha256 and sha224 parts of crypto/sha256_generic.c when we remove the code duplication in further patches in this series. Suggested-by: Eric Biggers Signed-off-by: Hans de Goede --- include/crypto/sha256.h | 5 +++++ lib/crypto/sha256.c | 37 +++++++++++++++++++++++++++++++++++-- 2 files changed, 40 insertions(+), 2 deletions(-) diff --git a/include/crypto/sha256.h b/include/crypto/sha256.h index 9cbb3589b8b3..a75998d65a41 100644 --- a/include/crypto/sha256.h +++ b/include/crypto/sha256.h @@ -26,4 +26,9 @@ extern int sha256_update(struct sha256_state *sctx, const u8 *input, unsigned int length); extern int sha256_final(struct sha256_state *sctx, u8 *hash); +extern int sha224_init(struct sha256_state *sctx); +extern int sha224_update(struct sha256_state *sctx, const u8 *input, + unsigned int length); +extern int sha224_final(struct sha256_state *sctx, u8 *hash); + #endif /* SHA256_H */ diff --git a/lib/crypto/sha256.c b/lib/crypto/sha256.c index f2ed75ae6910..45ad87520769 100644 --- a/lib/crypto/sha256.c +++ b/lib/crypto/sha256.c @@ -221,6 +221,22 @@ int sha256_init(struct sha256_state *sctx) } EXPORT_SYMBOL(sha256_init); +int sha224_init(struct sha256_state *sctx) +{ + sctx->state[0] = SHA224_H0; + sctx->state[1] = SHA224_H1; + sctx->state[2] = SHA224_H2; + sctx->state[3] = SHA224_H3; + sctx->state[4] = SHA224_H4; + sctx->state[5] = SHA224_H5; + sctx->state[6] = SHA224_H6; + sctx->state[7] = SHA224_H7; + sctx->count = 0; + + return 0; +} +EXPORT_SYMBOL(sha224_init); + int sha256_update(struct sha256_state *sctx, const u8 *data, unsigned int len) { unsigned int partial, done; @@ -252,7 +268,13 @@ int sha256_update(struct sha256_state *sctx, const u8 *data, unsigned int len) } EXPORT_SYMBOL(sha256_update); -int sha256_final(struct sha256_state *sctx, u8 *out) +int sha224_update(struct sha256_state *sctx, const u8 *data, unsigned int len) +{ + return sha256_update(sctx, data, len); +} +EXPORT_SYMBOL(sha224_update); + +static int __sha256_final(struct sha256_state *sctx, u8 *out, int digest_words) { __be32 *dst = (__be32 *)out; __be64 bits; @@ -272,7 +294,7 @@ int sha256_final(struct sha256_state *sctx, u8 *out) sha256_update(sctx, (const u8 *)&bits, sizeof(bits)); /* Store state in digest */ - for (i = 0; i < 8; i++) + for (i = 0; i < digest_words; i++) put_unaligned_be32(sctx->state[i], &dst[i]); /* Zeroize sensitive information. */ @@ -280,4 +302,15 @@ int sha256_final(struct sha256_state *sctx, u8 *out) return 0; } + +int sha256_final(struct sha256_state *sctx, u8 *out) +{ + return __sha256_final(sctx, out, 8); +} EXPORT_SYMBOL(sha256_final); + +int sha224_final(struct sha256_state *sctx, u8 *out) +{ + return __sha256_final(sctx, out, 7); +} +EXPORT_SYMBOL(sha224_final);