diff options
| author | Herbert Xu <herbert@gondor.apana.org.au> | 2006-08-13 14:16:39 +1000 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2006-09-21 11:41:02 +1000 |
| commit | 560c06ae1ab7c677002ea3b6ac83521bf12ee07d (patch) | |
| tree | 374ed69a7e23ba9d07458d20672aac6ae552ae51 /crypto/twofish_common.c | |
| parent | 25cdbcd9e5d20e431f829cafce48a418830011f4 (diff) | |
| download | lwn-560c06ae1ab7c677002ea3b6ac83521bf12ee07d.tar.gz lwn-560c06ae1ab7c677002ea3b6ac83521bf12ee07d.zip | |
[CRYPTO] api: Get rid of flags argument to setkey
Now that the tfm is passed directly to setkey instead of the ctx, we no
longer need to pass the &tfm->crt_flags pointer.
This patch also gets rid of a few unnecessary checks on the key length
for ciphers as the cipher layer guarantees that the key length is within
the bounds specified by the algorithm.
Rather than testing dia_setkey every time, this patch does it only once
during crypto_alloc_tfm. The redundant check from crypto_digest_setkey
is also removed.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/twofish_common.c')
| -rw-r--r-- | crypto/twofish_common.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/crypto/twofish_common.c b/crypto/twofish_common.c index 1ae0280c2513..b4b9c0c3f4ae 100644 --- a/crypto/twofish_common.c +++ b/crypto/twofish_common.c @@ -580,11 +580,11 @@ static const u8 calc_sb_tbl[512] = { ctx->a[(j) + 1] = rol32(y, 9) /* Perform the key setup. */ -int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, - unsigned int key_len, u32 *flags) +int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, unsigned int key_len) { struct twofish_ctx *ctx = crypto_tfm_ctx(tfm); + u32 *flags = &tfm->crt_flags; int i, j, k; @@ -600,7 +600,7 @@ int twofish_setkey(struct crypto_tfm *tfm, const u8 *key, u8 tmp; /* Check key length. */ - if (key_len != 16 && key_len != 24 && key_len != 32) + if (key_len % 8) { *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; return -EINVAL; /* unsupported key length */ |