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[CRYPTO] api: Get rid of flags argument to setkey

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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>
This commit is contained in:
Herbert Xu
2006-08-13 14:16:39 +10:00
parent 25cdbcd9e5
commit 560c06ae1a
24 changed files with 63 additions and 92 deletions
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19
crypto/serpent.c
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@@ -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)