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authorHerbert Xu <herbert@gondor.apana.org.au>2006-08-13 04:16:39 (GMT)
committerHerbert Xu <herbert@gondor.apana.org.au>2006-09-21 01:41:02 (GMT)
commit560c06ae1ab7c677002ea3b6ac83521bf12ee07d (patch)
tree374ed69a7e23ba9d07458d20672aac6ae552ae51 /crypto/serpent.c
parent25cdbcd9e5d20e431f829cafce48a418830011f4 (diff)
[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/serpent.c')
-rw-r--r--crypto/serpent.c19
1 files changed, 3 insertions, 16 deletions
diff --git a/crypto/serpent.c b/crypto/serpent.c
index de60cdd..465d091 100644
--- a/crypto/serpent.c
+++ b/crypto/serpent.c
@@ -216,7 +216,7 @@ struct serpent_ctx {
static int serpent_setkey(struct crypto_tfm *tfm, const u8 *key,
- unsigned int keylen, u32 *flags)
+ unsigned int keylen)
{
struct serpent_ctx *ctx = crypto_tfm_ctx(tfm);
u32 *k = ctx->expkey;
@@ -224,13 +224,6 @@ static int serpent_setkey(struct crypto_tfm *tfm, const u8 *key,
u32 r0,r1,r2,r3,r4;
int i;
- if ((keylen < SERPENT_MIN_KEY_SIZE)
- || (keylen > SERPENT_MAX_KEY_SIZE))
- {
- *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
- return -EINVAL;
- }
-
/* Copy key, add padding */
for (i = 0; i < keylen; ++i)
@@ -497,21 +490,15 @@ static struct crypto_alg serpent_alg = {
};
static int tnepres_setkey(struct crypto_tfm *tfm, const u8 *key,
- unsigned int keylen, u32 *flags)
+ unsigned int keylen)
{
u8 rev_key[SERPENT_MAX_KEY_SIZE];
int i;
- if ((keylen < SERPENT_MIN_KEY_SIZE)
- || (keylen > SERPENT_MAX_KEY_SIZE)) {
- *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
- return -EINVAL;
- }
-
for (i = 0; i < keylen; ++i)
rev_key[keylen - i - 1] = key[i];
- return serpent_setkey(tfm, rev_key, keylen, flags);
+ return serpent_setkey(tfm, rev_key, keylen);
}
static void tnepres_encrypt(struct crypto_tfm *tfm, u8 *dst, const u8 *src)

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