/* custom ECDH operation */
int (*ecdh_compute_key)(unsigned char **pout, size_t *poutlen,
const EC_POINT *pub_key, const EC_KEY *ecdh);
+ /* Inverse modulo order */
+ int (*field_inverse_mod_ord)(const EC_GROUP *, BIGNUM *r, BIGNUM *x,
+ BN_CTX *ctx);
};
/*
void ec_GFp_nistp_recode_scalar_bits(unsigned char *sign,
unsigned char *digit, unsigned char in);
#endif
-int ec_precompute_mont_data(EC_GROUP *);
int ec_group_simple_order_bits(const EC_GROUP *group);
#ifdef ECP_NISTZ256_ASM
const uint8_t peer_public_value[32]);
void X25519_public_from_private(uint8_t out_public_value[32],
const uint8_t private_key[32]);
+
+int EC_GROUP_do_inverse_ord(const EC_GROUP *group, BIGNUM *res,
+ BIGNUM *x, BN_CTX *ctx);