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authorEric Biggers <ebiggers@google.com>2020-07-08 09:39:40 -0700
committerHerbert Xu <herbert@gondor.apana.org.au>2020-07-16 21:49:05 +1000
commit9ea9c58b40a441a0babef8c615acedcfb3733919 (patch)
treedc3f3877b658e2a9ce6432550e0e5a6d22095d75 /lib/crypto
parent6e8f972fc3fb03797abb88feee6704dccada93f6 (diff)
crypto: lib/sha256 - add sha256() function
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> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'lib/crypto')
-rw-r--r--lib/crypto/sha256.c10
1 files changed, 10 insertions, 0 deletions
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");