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crypto: Convert crypto_ec_key_get_public_key() to return new ec_point

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This makes it easier for the crypto library/wrapper to avoid direct
references to internal EC key parameters.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2022-05-26 16:34:36 +03:00
parent 26780d92f3
commit 177ebfe109
4 changed files with 41 additions and 25 deletions
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8
src/common/dpp_pkex.c
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@ -30,8 +30,7 @@ static struct wpabuf * dpp_pkex_build_exchange_req(struct dpp_pkex *pkex,
bool v2)
{
struct crypto_ec *ec = NULL;
const struct crypto_ec_point *X;
struct crypto_ec_point *Qi = NULL, *M = NULL;
struct crypto_ec_point *Qi = NULL, *M = NULL, *X = NULL;
u8 *Mx, *My;
struct wpabuf *msg = NULL;
size_t attr_len;
@ -150,6 +149,7 @@ skip_finite_cyclic_group:
os_memcpy(pkex->Mx, Mx, curve->prime_len);
out:
crypto_ec_point_deinit(X, 1);
crypto_ec_point_deinit(M, 1);
crypto_ec_point_deinit(Qi, 1);
crypto_ec_deinit(ec);
@ -349,9 +349,8 @@ struct dpp_pkex * dpp_pkex_rx_exchange_req(void *msg_ctx,
u16 ike_group;
struct dpp_pkex *pkex = NULL;
struct crypto_ec_point *Qi = NULL, *Qr = NULL, *M = NULL, *X = NULL,
*N = NULL;
*N = NULL, *Y = NULL;
struct crypto_ec *ec = NULL;
const struct crypto_ec_point *Y;
u8 *x_coord = NULL, *y_coord = NULL;
u8 Kx[DPP_MAX_SHARED_SECRET_LEN];
size_t Kx_len;
@ -566,6 +565,7 @@ out:
crypto_ec_point_deinit(M, 1);
crypto_ec_point_deinit(N, 1);
crypto_ec_point_deinit(X, 1);
crypto_ec_point_deinit(Y, 1);
crypto_ec_deinit(ec);
return pkex;
fail: