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wolfSSL: Use wc_ecc_get_curve_size_from_id()

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Avoid use of direct member access.

Signed-off-by: Juliusz Sosinowicz <juliusz@wolfssl.com>
This commit is contained in:
Juliusz Sosinowicz 2023-03-08 18:18:48 +01:00 committed by Jouni Malinen
parent 378bef3697
commit 41b5c9d8dc
1 changed files with 16 additions and 4 deletions
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20
src/crypto/crypto_wolfssl.c
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@ -1525,6 +1525,7 @@ struct crypto_ec {
mp_int order;
mp_digit mont_b;
mp_int b;
int curve_id;
};
@ -1545,6 +1546,7 @@ struct crypto_ec * crypto_ec_init(int group)
return NULL;
}
e->curve_id = curve_id;
if (wc_ecc_init(&e->key) != 0 ||
wc_ecc_set_curve(&e->key, 0, curve_id) != 0 ||
mp_init(&e->a) != MP_OKAY ||
@ -1665,6 +1667,7 @@ int crypto_ec_point_to_bin(struct crypto_ec *e,
const struct crypto_ec_point *point, u8 *x, u8 *y)
{
ecc_point *p = (ecc_point *) point;
int len;
int err;
if (TEST_FAIL())
@ -1678,18 +1681,27 @@ int crypto_ec_point_to_bin(struct crypto_ec *e,
}
}
len = wc_ecc_get_curve_size_from_id(e->curve_id);
if (len <= 0) {
LOG_WOLF_ERROR_FUNC(wc_ecc_get_curve_size_from_id, len);
LOG_WOLF_ERROR_VA("wc_ecc_get_curve_size_from_id error for curve_id %d", e->curve_id);
return -1;
}
if (x) {
if (crypto_bignum_to_bin((struct crypto_bignum *)p->x, x,
e->key.dp->size,
e->key.dp->size) <= 0)
(size_t) len, (size_t) len) <= 0) {
LOG_WOLF_ERROR_FUNC(crypto_bignum_to_bin, -1);
return -1;
}
}
if (y) {
if (crypto_bignum_to_bin((struct crypto_bignum *) p->y, y,
e->key.dp->size,
e->key.dp->size) <= 0)
(size_t) len, (size_t) len) <= 0) {
LOG_WOLF_ERROR_FUNC(crypto_bignum_to_bin, -1);
return -1;
}
}
return 0;