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authorEric Biggers <ebiggers@google.com>2020-05-02 11:24:25 -0700
committerHerbert Xu <herbert@gondor.apana.org.au>2020-05-08 15:32:17 +1000
commit6b0b0fa2bce61db790efc8070ae6e5696435b0a8 (patch)
treee849f9c027696010b95ebec127d4b4b86196f8f8 /drivers/char
parent4d21e594508c9dca0a51e41a684e16cb5c420c36 (diff)
crypto: lib/sha1 - rename "sha" to "sha1"
The library implementation of the SHA-1 compression function is confusingly called just "sha_transform()". Alongside it are some "SHA_" constants and "sha_init()". Presumably these are left over from a time when SHA just meant SHA-1. But now there are also SHA-2 and SHA-3, and moreover SHA-1 is now considered insecure and thus shouldn't be used. Therefore, rename these functions and constants to make it very clear that they are for SHA-1. Also add a comment to make it clear that these shouldn't be used. For the extra-misleadingly named "SHA_MESSAGE_BYTES", rename it to SHA1_BLOCK_SIZE and define it to just '64' rather than '(512/8)' so that it matches the same definition in <crypto/sha.h>. This prepares for merging <linux/cryptohash.h> into <crypto/sha.h>. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/char')
-rw-r--r--drivers/char/random.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 0d10e31fd342..a19a8984741b 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -1397,14 +1397,14 @@ static void extract_buf(struct entropy_store *r, __u8 *out)
__u32 w[5];
unsigned long l[LONGS(20)];
} hash;
- __u32 workspace[SHA_WORKSPACE_WORDS];
+ __u32 workspace[SHA1_WORKSPACE_WORDS];
unsigned long flags;
/*
* If we have an architectural hardware random number
* generator, use it for SHA's initial vector
*/
- sha_init(hash.w);
+ sha1_init(hash.w);
for (i = 0; i < LONGS(20); i++) {
unsigned long v;
if (!arch_get_random_long(&v))
@@ -1415,7 +1415,7 @@ static void extract_buf(struct entropy_store *r, __u8 *out)
/* Generate a hash across the pool, 16 words (512 bits) at a time */
spin_lock_irqsave(&r->lock, flags);
for (i = 0; i < r->poolinfo->poolwords; i += 16)
- sha_transform(hash.w, (__u8 *)(r->pool + i), workspace);
+ sha1_transform(hash.w, (__u8 *)(r->pool + i), workspace);
/*
* We mix the hash back into the pool to prevent backtracking