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 69247C10F13 for ; Thu, 11 Apr 2019 08:51:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 40E6C2184B for ; Thu, 11 Apr 2019 08:51:16 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726875AbfDKIvP (ORCPT ); Thu, 11 Apr 2019 04:51:15 -0400 Received: from orcrist.hmeau.com ([104.223.48.154]:41252 "EHLO deadmen.hmeau.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726708AbfDKIvP (ORCPT ); Thu, 11 Apr 2019 04:51:15 -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 1hEVQP-0003PU-Je for ; Thu, 11 Apr 2019 16:51:13 +0800 Received: from herbert by gondobar with local (Exim 4.89) (envelope-from ) id 1hEVQP-0006no-Ct; Thu, 11 Apr 2019 16:51:13 +0800 Subject: [PATCH 16/24] crypto: n2 - 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 16:51:13 +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 --- drivers/crypto/n2_core.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/crypto/n2_core.c b/drivers/crypto/n2_core.c index 9450c41211b2..df675aea58f6 100644 --- a/drivers/crypto/n2_core.c +++ b/drivers/crypto/n2_core.c @@ -788,13 +788,18 @@ static int n2_3des_setkey(struct crypto_ablkcipher *cipher, const u8 *key, struct crypto_tfm *tfm = crypto_ablkcipher_tfm(cipher); struct n2_cipher_context *ctx = crypto_tfm_ctx(tfm); struct n2_cipher_alg *n2alg = n2_cipher_alg(tfm); + u32 flags; + int err; + + flags = crypto_ablkcipher_get_flags(cipher); + err = __des3_verify_key(&flags, key); + if (unlikely(err)) { + crypto_ablkcipher_set_flags(cipher, flags); + return err; + } ctx->enc_type = n2alg->enc_type; - if (keylen != (3 * DES_KEY_SIZE)) { - crypto_ablkcipher_set_flags(cipher, CRYPTO_TFM_RES_BAD_KEY_LEN); - return -EINVAL; - } ctx->key_len = keylen; memcpy(ctx->key.des3, key, keylen); return 0;