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crypto: ecc - remove unnecessary casts

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ecc software implementation works with chunks of u64 data. There were some
unnecessary casts to u8 and then back to u64 for the ecc keys. This patch
removes the unnecessary casts.

Signed-off-by: Tudor Ambarus <[email protected]>
Signed-off-by: Herbert Xu <[email protected]>
This commit is contained in:
Tudor-Dan Ambarus 2017-05-25 10:18:05 +03:00 • committed by Herbert Xu
commit ad26959710
3 changed files with 22 additions and 25 deletions
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11
crypto/ecdh.c
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@ -56,7 +56,7 @@ static int ecdh_set_secret(struct crypto_kpp *tfm, const void *buf,
ctx->ndigits = ndigits;
if (ecc_is_key_valid(ctx->curve_id, ctx->ndigits,
(const u8 *)params.key, params.key_size) < 0)
(const u64 *)params.key, params.key_size) < 0)
return -EINVAL;
memcpy(ctx->private_key, params.key, params.key_size);
@ -81,15 +81,14 @@ static int ecdh_compute_value(struct kpp_request *req)
return -EINVAL;
ret = crypto_ecdh_shared_secret(ctx->curve_id, ctx->ndigits,
(const u8 *)ctx->private_key,
(const u8 *)ctx->public_key,
(u8 *)ctx->shared_secret);
ctx->private_key,
ctx->public_key,
ctx->shared_secret);
buf = ctx->shared_secret;
} else {
ret = ecdh_make_pub_key(ctx->curve_id, ctx->ndigits,
(const u8 *)ctx->private_key,
(u8 *)ctx->public_key);
ctx->private_key, ctx->public_key);
buf = ctx->public_key;
/* Public part is a point thus it has both coordinates */
nbytes *= 2;