Received-SPF: pass (google.com: domain of linux-crypto-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   Vladis Dronov <vdronov@redhat.com>
To:     Herbert Xu <herbert@gondor.apana.org.au>,
        "David S . Miller" <davem@davemloft.net>
Cc:     Nicolai Stange <nstange@suse.de>, Elliott Robert <elliott@hpe.com>,
        Stephan Mueller <smueller@chronox.de>,
        Eric Biggers <ebiggers@google.com>,
        linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org,
        Vladis Dronov <vdronov@redhat.com>
Subject: [PATCH v2 5/6] crypto: testmgr - disallow plain ghash in FIPS mode
Date:   Thu, 29 Dec 2022 21:37:07 +0100
Message-Id: <20221229203708.13628-6-vdronov@redhat.com>
In-Reply-To: <20221229203708.13628-1-vdronov@redhat.com>
References: <20221229203708.13628-1-vdronov@redhat.com>
MIME-Version: 1.0
Content-type: text/plain
Content-Transfer-Encoding: 8bit
Precedence: bulk

From: Nicolai Stange <nstange@suse.de>

ghash may be used only as part of the gcm(aes) construction in FIPS
mode. Since commit d6097b8d5d55 ("crypto: api - allow algs only in specific
constructions in FIPS mode") there's support for using spawns which by
itself are marked as non-approved from approved template instantiations.
So simply mark plain ghash as non-approved in testmgr to block any attempts
of direct instantiations in FIPS mode.

Signed-off-by: Nicolai Stange <nstange@suse.de>
Signed-off-by: Vladis Dronov <vdronov@redhat.com>
Reviewed-by: Eric Biggers <ebiggers@google.com>
---
 crypto/testmgr.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 562463a77a76..a223cf5f3626 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -5125,7 +5125,6 @@ static const struct alg_test_desc alg_test_descs[] = {
 	}, {
 		.alg = "ghash",
 		.test = alg_test_hash,
-		.fips_allowed = 1,
 		.suite = {
 			.hash = __VECS(ghash_tv_template)
 		}
-- 
2.38.1