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From: Patrick Uiterwijk <patrick@puiterwijk.org>
To: linux-integrity@vger.kernel.org, zohar@linux.ibm.com
Cc: pbrobinson@redhat.com, Patrick Uiterwijk <patrick@puiterwijk.org>
Subject: [PATCH 1/2] Fix sign_hash not observing the hashalgo argument
Date: Wed,  6 Jan 2021 10:43:34 +0100	[thread overview]
Message-ID: <20210106094335.3178261-2-patrick@puiterwijk.org> (raw)
In-Reply-To: <20210106094335.3178261-1-patrick@puiterwijk.org>

This fixes sign_hash not using the correct algorithm for creating the
signature, by ensuring it uses the passed in variable value.

Signed-off-by: Patrick Uiterwijk <patrick@puiterwijk.org>
---
 src/libimaevm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/libimaevm.c b/src/libimaevm.c
index fa6c278..72d5e67 100644
--- a/src/libimaevm.c
+++ b/src/libimaevm.c
@@ -916,7 +916,7 @@ static int sign_hash_v2(const char *algo, const unsigned char *hash,
 		return -1;
 	}
 
-	log_info("hash(%s): ", imaevm_params.hash_algo);
+	log_info("hash(%s): ", algo);
 	log_dump(hash, size);
 
 	pkey = read_priv_pkey(keyfile, imaevm_params.keypass);
@@ -942,7 +942,7 @@ static int sign_hash_v2(const char *algo, const unsigned char *hash,
 	if (!EVP_PKEY_sign_init(ctx))
 		goto err;
 	st = "EVP_get_digestbyname";
-	if (!(md = EVP_get_digestbyname(imaevm_params.hash_algo)))
+	if (!(md = EVP_get_digestbyname(algo)))
 		goto err;
 	st = "EVP_PKEY_CTX_set_signature_md";
 	if (!EVP_PKEY_CTX_set_signature_md(ctx, md))
-- 
2.26.2


  reply	other threads:[~2021-01-06  9:47 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-01-06  9:43 [PATCH 0/2] ima-evm-utils: Fix use of sign_hash via API Patrick Uiterwijk
2021-01-06  9:43 ` Patrick Uiterwijk [this message]
2021-01-07 12:24   ` [PATCH 1/2] Fix sign_hash not observing the hashalgo argument Mimi Zohar
2021-01-07 13:08     ` Vitaly Chikunov
2021-01-07 13:15       ` Vitaly Chikunov
2021-01-07 14:55         ` Mimi Zohar
2021-01-07 15:13         ` Patrick Uiterwijk
2021-01-06  9:43 ` [PATCH 2/2] Add test for using sign_hash API Patrick Uiterwijk
2021-01-07 12:25   ` Mimi Zohar
2021-01-07 12:53     ` Vitaly Chikunov
2021-01-07 15:08       ` Patrick Uiterwijk
2021-07-05 15:49 ` [PATCH ima-evm-utils v2 0/2] Fix use of sign_hash via API Patrick Uiterwijk
2021-07-05 15:49   ` [PATCH ima-evm-utils v2 1/2] Fix sign_hash not observing the hashalgo argument Patrick Uiterwijk
2021-07-05 15:49   ` [PATCH ima-evm-utils v2 2/2] Add test for using sign_hash API Patrick Uiterwijk
2021-07-06 15:53     ` Mimi Zohar

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