From patchwork Wed Jul 8 16:39:40 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Biggers X-Patchwork-Id: 11651901 X-Patchwork-Delegate: herbert@gondor.apana.org.au Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id E683313B4 for ; Wed, 8 Jul 2020 16:40:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BF25F2084C for ; Wed, 8 Jul 2020 16:40:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1594226435; bh=rE+uvyPJsx8rFIs6khWUJUiQ/J5nt2exnTaDySam3F4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=eN6RT66YJIFWkUg8v6y49Du4PEFNgrKsMNiZrC3+UIunqo0y3BojzcxMeMxqlhrvM TPUmrVnlPo3gBhqeRs8QtaJ60CDxczbE2ArXy3nNWlJP/HVg2pyMJFI0VtGz08a6We F/8U2+yGs9m7wMvfTJb29cUF46We8lCXLXnRekKk= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730740AbgGHQke (ORCPT ); Wed, 8 Jul 2020 12:40:34 -0400 Received: from mail.kernel.org ([198.145.29.99]:54912 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730736AbgGHQkd (ORCPT ); Wed, 8 Jul 2020 12:40:33 -0400 Received: from sol.hsd1.ca.comcast.net (c-107-3-166-239.hsd1.ca.comcast.net [107.3.166.239]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 3FC932078D; Wed, 8 Jul 2020 16:40:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1594226432; bh=rE+uvyPJsx8rFIs6khWUJUiQ/J5nt2exnTaDySam3F4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=2AdOv2ojkr5ZbL0vrz8iP22badDVJXNqokKsVwP6sOfodzMgiWpzAoAlmr5rO5RZm Prmrsra9KPKdnKtIEc726U5NOchmXKi17+4uSRRoXnAfJcKiU0pEJF50TLhG1xgFJd GYqnMHph6bl0BxWv6K4yr1q0HIsXrYa5cFF0t1b8= From: Eric Biggers To: linux-crypto@vger.kernel.org, Herbert Xu Cc: Ard Biesheuvel , Hans de Goede , sparclinux@vger.kernel.org, linux-efi@vger.kernel.org, mptcp@lists.01.org, Mat Martineau , Matthieu Baerts , alsa-devel@alsa-project.org, Cheng-Yi Chiang , Enric Balletbo i Serra , Guenter Roeck , Tzung-Bi Shih Subject: [PATCH v2 2/5] crypto: lib/sha256 - add sha256() function Date: Wed, 8 Jul 2020 09:39:40 -0700 Message-Id: <20200708163943.52071-3-ebiggers@kernel.org> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200708163943.52071-1-ebiggers@kernel.org> References: <20200708163943.52071-1-ebiggers@kernel.org> MIME-Version: 1.0 Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org From: Eric Biggers Add a function sha256() which computes a SHA-256 digest in one step, combining sha256_init() + sha256_update() + sha256_final(). This is similar to how we also have blake2s(). Reviewed-by: Ard Biesheuvel Tested-by: Hans de Goede Signed-off-by: Eric Biggers --- include/crypto/sha.h | 1 + lib/crypto/sha256.c | 10 ++++++++++ 2 files changed, 11 insertions(+) diff --git a/include/crypto/sha.h b/include/crypto/sha.h index 10753ff71d46..4ff3da816630 100644 --- a/include/crypto/sha.h +++ b/include/crypto/sha.h @@ -147,6 +147,7 @@ static inline void sha256_init(struct sha256_state *sctx) } void sha256_update(struct sha256_state *sctx, const u8 *data, unsigned int len); void sha256_final(struct sha256_state *sctx, u8 *out); +void sha256(const u8 *data, unsigned int len, u8 *out); static inline void sha224_init(struct sha256_state *sctx) { diff --git a/lib/crypto/sha256.c b/lib/crypto/sha256.c index 2e621697c5c3..2321f6cb322f 100644 --- a/lib/crypto/sha256.c +++ b/lib/crypto/sha256.c @@ -280,4 +280,14 @@ void sha224_final(struct sha256_state *sctx, u8 *out) } EXPORT_SYMBOL(sha224_final); +void sha256(const u8 *data, unsigned int len, u8 *out) +{ + struct sha256_state sctx; + + sha256_init(&sctx); + sha256_update(&sctx, data, len); + sha256_final(&sctx, out); +} +EXPORT_SYMBOL(sha256); + MODULE_LICENSE("GPL");