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crypto: ux500/des - switch to new verification routines 

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
alistair/sunxi64-5.4-dsi
Ard Biesheuvel 2019-08-15 12:01:06 +03:00 committed by Herbert Xu
parent 9d574ae8eb
commit dcb15794ec
1 changed files with 7 additions and 24 deletions
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31
drivers/crypto/ux500/cryp/cryp_core.c
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@ -29,7 +29,7 @@
#include <crypto/aes.h>
#include <crypto/algapi.h>
#include <crypto/ctr.h>
#include <crypto/des.h>
#include <crypto/internal/des.h>
#include <crypto/scatterwalk.h>
#include <linux/platform_data/crypto-ux500.h>
@ -987,26 +987,13 @@ static int des_ablkcipher_setkey(struct crypto_ablkcipher *cipher,
const u8 *key, unsigned int keylen)
{
struct cryp_ctx *ctx = crypto_ablkcipher_ctx(cipher);
u32 *flags = &cipher->base.crt_flags;
u32 tmp[DES_EXPKEY_WORDS];
int ret;
int err;
pr_debug(DEV_DBG_NAME " [%s]", __func__);
if (keylen != DES_KEY_SIZE) {
*flags |= CRYPTO_TFM_RES_BAD_KEY_LEN;
pr_debug(DEV_DBG_NAME " [%s]: CRYPTO_TFM_RES_BAD_KEY_LEN",
__func__);
return -EINVAL;
}
ret = des_ekey(tmp, key);
if (unlikely(ret == 0) &&
(*flags & CRYPTO_TFM_REQ_FORBID_WEAK_KEYS)) {
*flags |= CRYPTO_TFM_RES_WEAK_KEY;
pr_debug(DEV_DBG_NAME " [%s]: CRYPTO_TFM_RES_WEAK_KEY",
__func__);
return -EINVAL;
}
err = verify_ablkcipher_des_key(cipher, key);
if (err)
return err;
memcpy(ctx->key, key, keylen);
ctx->keylen = keylen;
@ -1019,17 +1006,13 @@ static int des3_ablkcipher_setkey(struct crypto_ablkcipher *cipher,
const u8 *key, unsigned int keylen)
{
struct cryp_ctx *ctx = crypto_ablkcipher_ctx(cipher);
u32 flags;
int err;
pr_debug(DEV_DBG_NAME " [%s]", __func__);
flags = crypto_ablkcipher_get_flags(cipher);
err = __des3_verify_key(&flags, key);
if (unlikely(err)) {
crypto_ablkcipher_set_flags(cipher, flags);
err = verify_ablkcipher_des3_key(cipher, key);
if (err)
return err;
}
memcpy(ctx->key, key, keylen);
ctx->keylen = keylen;