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| 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/serpent.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/serpent.c')
| -rw-r--r-- | crypto/serpent.c | 19 |
1 files changed, 3 insertions, 16 deletions
diff --git a/crypto/serpent.c b/crypto/serpent.c index de60cdddbf4a..465d091cd3ec 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) |