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crypto: des - remove unused function 

Remove the old DES3 verification functions that are no longer used.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Ard Biesheuvel 2019-08-15 12:01:08 +03:00 committed by Herbert Xu
parent 4fd4be0576
commit 6b5c481862
1 changed files with 0 additions and 41 deletions
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41
include/crypto/des.h
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@ -19,47 +19,6 @@
#define DES3_EDE_EXPKEY_WORDS (3 * DES_EXPKEY_WORDS)
#define DES3_EDE_BLOCK_SIZE DES_BLOCK_SIZE
static inline int __des3_verify_key(u32 *flags, const u8 *key)
{
int err = -EINVAL;
u32 K[6];
memcpy(K, key, DES3_EDE_KEY_SIZE);
if (unlikely(!((K[0] ^ K[2]) | (K[1] ^ K[3])) ||
!((K[2] ^ K[4]) | (K[3] ^ K[5]))) &&
(fips_enabled ||
(*flags & CRYPTO_TFM_REQ_FORBID_WEAK_KEYS)))
goto bad;
if (unlikely(!((K[0] ^ K[4]) | (K[1] ^ K[5]))) && fips_enabled)
goto bad;
err = 0;
out:
memzero_explicit(K, DES3_EDE_KEY_SIZE);
return err;
bad:
*flags |= CRYPTO_TFM_RES_WEAK_KEY;
goto out;
}
static inline int des3_verify_key(struct crypto_skcipher *tfm, const u8 *key)
{
u32 flags;
int err;
flags = crypto_skcipher_get_flags(tfm);
err = __des3_verify_key(&flags, key);
crypto_skcipher_set_flags(tfm, flags);
return err;
}
extern unsigned long des_ekey(u32 *pe, const u8 *k);
extern int __des3_ede_setkey(u32 *expkey, u32 *flags, const u8 *key,
unsigned int keylen);