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authorHerbert Xu <herbert@gondor.apana.org.au>2006-08-13 14:16:39 +1000
committerHerbert Xu <herbert@gondor.apana.org.au>2006-09-21 11:41:02 +1000
commit560c06ae1ab7c677002ea3b6ac83521bf12ee07d (patch)
tree374ed69a7e23ba9d07458d20672aac6ae552ae51 /crypto/twofish_common.c
parent25cdbcd9e5d20e431f829cafce48a418830011f4 (diff)
downloadlinux-linaro-stable-560c06ae1ab7c677002ea3b6ac83521bf12ee07d.tar.gz
[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.c6
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 */