From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C97E7C10F14 for ; Thu, 11 Apr 2019 08:51:03 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A2D262184B for ; Thu, 11 Apr 2019 08:51:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727023AbfDKIvC (ORCPT ); Thu, 11 Apr 2019 04:51:02 -0400 Received: from orcrist.hmeau.com ([104.223.48.154]:41200 "EHLO deadmen.hmeau.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726256AbfDKIvA (ORCPT ); Thu, 11 Apr 2019 04:51:00 -0400 Received: from gondobar.mordor.me.apana.org.au ([192.168.128.4] helo=gondobar) by deadmen.hmeau.com with esmtps (Exim 4.89 #2 (Debian)) id 1hEVQB-0003Ju-68 for ; Thu, 11 Apr 2019 16:50:59 +0800 Received: from herbert by gondobar with local (Exim 4.89) (envelope-from ) id 1hEVQA-0006li-Ty; Thu, 11 Apr 2019 16:50:59 +0800 Subject: [PATCH 3/24] crypto: sparc - Forbid 2-key 3DES in FIPS mode References: <20190411084707.h56mz2z7jxusnr7u@gondor.apana.org.au> To: Linux Crypto Mailing List Message-Id: From: Herbert Xu Date: Thu, 11 Apr 2019 16:50:58 +0800 Sender: linux-crypto-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org This patch forbids the use of 2-key 3DES (K1 == K3) in FIPS mode. Signed-off-by: Herbert Xu --- arch/sparc/crypto/des_glue.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/arch/sparc/crypto/des_glue.c b/arch/sparc/crypto/des_glue.c index 4884315daff4..453a4cf5492a 100644 --- a/arch/sparc/crypto/des_glue.c +++ b/arch/sparc/crypto/des_glue.c @@ -201,18 +201,15 @@ static int des3_ede_set_key(struct crypto_tfm *tfm, const u8 *key, unsigned int keylen) { struct des3_ede_sparc64_ctx *dctx = crypto_tfm_ctx(tfm); - const u32 *K = (const u32 *)key; u32 *flags = &tfm->crt_flags; u64 k1[DES_EXPKEY_WORDS / 2]; u64 k2[DES_EXPKEY_WORDS / 2]; u64 k3[DES_EXPKEY_WORDS / 2]; + int err; - if (unlikely(!((K[0] ^ K[2]) | (K[1] ^ K[3])) || - !((K[2] ^ K[4]) | (K[3] ^ K[5]))) && - (*flags & CRYPTO_TFM_REQ_FORBID_WEAK_KEYS)) { - *flags |= CRYPTO_TFM_RES_WEAK_KEY; - return -EINVAL; - } + err = __des3_verify_key(flags, key); + if (unlikely(err)) + return err; des_sparc64_key_expand((const u32 *)key, k1); key += DES_KEY_SIZE;