# ifdef OPENSSL_NO_ECDH
# error ECDH is disabled.
# endif
# include
# include
# ifndef OPENSSL_NO_DEPRECATED
# include
# endif
#ifdef __cplusplus
extern "C" {
#endif
# define EC_FLAG_COFACTOR_ECDH 0x1000
const ECDH_METHOD *ECDH_OpenSSL(void);
void ECDH_set_default_method(const ECDH_METHOD *);
const ECDH_METHOD *ECDH_get_default_method(void);
int ECDH_set_method(EC_KEY *, const ECDH_METHOD *);
int ECDH_compute_key(void *out, size_t outlen, const EC_POINT *pub_key,
EC_KEY *ecdh, void *(*KDF) (const void *in, size_t inlen,
void *out, size_t *outlen));
int ECDH_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new
*new_func, CRYPTO_EX_dup *dup_func,
CRYPTO_EX_free *free_func);
int ECDH_set_ex_data(EC_KEY *d, int idx, void *arg);
void *ECDH_get_ex_data(EC_KEY *d, int idx);
int ECDH_KDF_X9_62(unsigned char *out, size_t outlen,
const unsigned char *Z, size_t Zlen,
const unsigned char *sinfo, size_t sinfolen,
const EVP_MD *md);
/* BEGIN ERROR CODES */
/*
* The following lines are auto generated by the script mkerr.pl. Any changes
* made after this point may be overwritten when the script is next run.
*/
void ERR_load_ECDH_strings(void);
/* Error codes for the ECDH functions. */
/* Function codes. */
# define ECDH_F_ECDH_CHECK 102
# define ECDH_F_ECDH_COMPUTE_KEY 100
# define ECDH_F_ECDH_DATA_NEW_METHOD 101
/* Reason codes. */
# define ECDH_R_KDF_FAILED 102
# define ECDH_R_NON_FIPS_METHOD 103
# define ECDH_R_NO_PRIVATE_VALUE 100
# define ECDH_R_POINT_ARITHMETIC_FAILURE 101
#ifdef __cplusplus
}
#endif
#endif