From: Eric Biggers <ebiggers@kernel.org>
To: linux-crypto@vger.kernel.org, Herbert Xu <herbert@gondor.apana.org.au>
Cc: Enric Balletbo i Serra <enric.balletbo@collabora.com>,
alsa-devel@alsa-project.org, linux-efi@vger.kernel.org,
Tzung-Bi Shih <tzungbi@google.com>,
Mat Martineau <mathew.j.martineau@linux.intel.com>,
Hans de Goede <hdegoede@redhat.com>,
sparclinux@vger.kernel.org,
Matthieu Baerts <matthieu.baerts@tessares.net>,
Guenter Roeck <groeck@chromium.org>,
mptcp@lists.01.org, Ard Biesheuvel <ardb@kernel.org>,
Cheng-Yi Chiang <cychiang@chromium.org>
Subject: [PATCH v2 2/5] crypto: lib/sha256 - add sha256() function
Date: Wed, 8 Jul 2020 09:39:40 -0700 [thread overview]
Message-ID: <20200708163943.52071-3-ebiggers@kernel.org> (raw)
In-Reply-To: <20200708163943.52071-1-ebiggers@kernel.org>
From: Eric Biggers <ebiggers@google.com>
Add a function sha256() which computes a SHA-256 digest in one step,
combining sha256_init() + sha256_update() + sha256_final().
This is similar to how we also have blake2s().
Reviewed-by: Ard Biesheuvel <ardb@kernel.org>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Eric Biggers <ebiggers@google.com>
---
include/crypto/sha.h | 1 +
lib/crypto/sha256.c | 10 ++++++++++
2 files changed, 11 insertions(+)
diff --git a/include/crypto/sha.h b/include/crypto/sha.h
index 10753ff71d46..4ff3da816630 100644
--- a/include/crypto/sha.h
+++ b/include/crypto/sha.h
@@ -147,6 +147,7 @@ static inline void sha256_init(struct sha256_state *sctx)
}
void sha256_update(struct sha256_state *sctx, const u8 *data, unsigned int len);
void sha256_final(struct sha256_state *sctx, u8 *out);
+void sha256(const u8 *data, unsigned int len, u8 *out);
static inline void sha224_init(struct sha256_state *sctx)
{
diff --git a/lib/crypto/sha256.c b/lib/crypto/sha256.c
index 2e621697c5c3..2321f6cb322f 100644
--- a/lib/crypto/sha256.c
+++ b/lib/crypto/sha256.c
@@ -280,4 +280,14 @@ void sha224_final(struct sha256_state *sctx, u8 *out)
}
EXPORT_SYMBOL(sha224_final);
+void sha256(const u8 *data, unsigned int len, u8 *out)
+{
+ struct sha256_state sctx;
+
+ sha256_init(&sctx);
+ sha256_update(&sctx, data, len);
+ sha256_final(&sctx, out);
+}
+EXPORT_SYMBOL(sha256);
+
MODULE_LICENSE("GPL");
--
2.27.0
next prev parent reply other threads:[~2020-07-08 16:42 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-08 16:39 [PATCH v2 0/5] crypto: add sha256() function Eric Biggers
2020-07-08 16:39 ` Eric Biggers [this message]
2020-07-08 16:39 ` [PATCH v2 5/5] ASoC: cros_ec_codec: use sha256() instead of open coding Eric Biggers
2020-07-16 11:54 ` [PATCH v2 0/5] crypto: add sha256() function Herbert Xu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20200708163943.52071-3-ebiggers@kernel.org \
--to=ebiggers@kernel.org \
--cc=alsa-devel@alsa-project.org \
--cc=ardb@kernel.org \
--cc=cychiang@chromium.org \
--cc=enric.balletbo@collabora.com \
--cc=groeck@chromium.org \
--cc=hdegoede@redhat.com \
--cc=herbert@gondor.apana.org.au \
--cc=linux-crypto@vger.kernel.org \
--cc=linux-efi@vger.kernel.org \
--cc=mathew.j.martineau@linux.intel.com \
--cc=matthieu.baerts@tessares.net \
--cc=mptcp@lists.01.org \
--cc=sparclinux@vger.kernel.org \
--cc=tzungbi@google.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).