From: Thomas Huth <thuth@redhat.com>
To: Eric Biggers <ebiggers@kernel.org>,
"Jason A. Donenfeld" <Jason@zx2c4.com>,
Ard Biesheuvel <ardb@kernel.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>,
"David S. Miller" <davem@davemloft.net>,
James Bottomley <James.Bottomley@HansenPartnership.com>,
Jarkko Sakkinen <jarkko@kernel.org>,
Mimi Zohar <zohar@linux.ibm.com>,
David Howells <dhowells@redhat.com>,
Paul Moore <paul@paul-moore.com>,
James Morris <jmorris@namei.org>,
"Serge E. Hallyn" <serge@hallyn.com>,
linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-integrity@vger.kernel.org, keyrings@vger.kernel.org,
linux-security-module@vger.kernel.org
Subject: [PATCH 3/3] lib/crypto: sha1: Use hmac_sha1_zeroize_ctx() instead of memzero_explicit()
Date: Wed, 12 Aug 2026 18:33:36 +0200 [thread overview]
Message-ID: <20260812163336.3103835-4-thuth@redhat.com> (raw)
In-Reply-To: <20260812163336.3103835-1-thuth@redhat.com>
From: Thomas Huth <thuth@redhat.com>
It's only cosmetics, but since we have the new hmac_sha1_zeroize_ctx()
function anyway, we can also use it here.
Signed-off-by: Thomas Huth <thuth@redhat.com>
---
lib/crypto/sha1.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/crypto/sha1.c b/lib/crypto/sha1.c
index b687b89d97cb4..c4361ef77166e 100644
--- a/lib/crypto/sha1.c
+++ b/lib/crypto/sha1.c
@@ -275,7 +275,7 @@ void hmac_sha1_final(struct hmac_sha1_ctx *ctx, u8 out[SHA1_DIGEST_SIZE])
for (size_t i = 0; i < SHA1_DIGEST_SIZE; i += 4)
put_unaligned_be32(ctx->ostate.h[i / 4], out + i);
- memzero_explicit(ctx, sizeof(*ctx));
+ hmac_sha1_zeroize_ctx(ctx);
}
EXPORT_SYMBOL_GPL(hmac_sha1_final);
--
2.55.0
prev parent reply other threads:[~2026-08-12 16:34 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-12 16:33 [PATCH 0/3] lib/crypto: Provide a function for zeroizing hmac_sha1_ctx Thomas Huth
2026-08-12 16:33 ` [PATCH 1/3] crypto: Provide a wrapper " Thomas Huth
2026-08-12 16:33 ` [PATCH 2/3] security: keys: trusted: always clear the hmac_sha1_ctx before returning Thomas Huth
2026-08-12 16:33 ` Thomas Huth [this message]
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