From patchwork Thu Apr 11 08:51:03 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Herbert Xu X-Patchwork-Id: 10895355 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 458001800 for ; Thu, 11 Apr 2019 08:51:07 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 38A6B28B97 for ; Thu, 11 Apr 2019 08:51:07 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2D6F828BAF; Thu, 11 Apr 2019 08:51:07 +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 DCBDE28BAC for ; Thu, 11 Apr 2019 08:51:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727032AbfDKIvG (ORCPT ); Thu, 11 Apr 2019 04:51:06 -0400 Received: from orcrist.hmeau.com ([104.223.48.154]:41216 "EHLO deadmen.hmeau.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726256AbfDKIvF (ORCPT ); Thu, 11 Apr 2019 04:51:05 -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 1hEVQF-0003LC-Hs for ; Thu, 11 Apr 2019 16:51:03 +0800 Received: from herbert by gondobar with local (Exim 4.89) (envelope-from ) id 1hEVQF-0006mM-AF; Thu, 11 Apr 2019 16:51:03 +0800 Subject: [PATCH 7/24] crypto: cavium - 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 16:51:03 +0800 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 This patch forbids the use of 2-key 3DES (K1 == K3) in FIPS mode. Signed-off-by: Herbert Xu --- drivers/crypto/cavium/cpt/cptvf_algs.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/crypto/cavium/cpt/cptvf_algs.c b/drivers/crypto/cavium/cpt/cptvf_algs.c index 600336d169a9..8cffe6094270 100644 --- a/drivers/crypto/cavium/cpt/cptvf_algs.c +++ b/drivers/crypto/cavium/cpt/cptvf_algs.c @@ -327,12 +327,30 @@ static int cvm_cfb_aes_setkey(struct crypto_ablkcipher *cipher, const u8 *key, static int cvm_cbc_des3_setkey(struct crypto_ablkcipher *cipher, const u8 *key, u32 keylen) { + u32 flags = crypto_ablkcipher_get_flags(cipher); + int err; + + err = __des3_verify_key(&flags, key); + if (unlikely(err)) { + crypto_ablkcipher_set_flags(cipher, flags); + return err; + } + return cvm_setkey(cipher, key, keylen, DES3_CBC); } static int cvm_ecb_des3_setkey(struct crypto_ablkcipher *cipher, const u8 *key, u32 keylen) { + u32 flags = crypto_ablkcipher_get_flags(cipher); + int err; + + err = __des3_verify_key(&flags, key); + if (unlikely(err)) { + crypto_ablkcipher_set_flags(cipher, flags); + return err; + } + return cvm_setkey(cipher, key, keylen, DES3_ECB); }