1GOST_KEY_TRANSPORT *make_rfc4490_keytransport_2001(EVP_PKEY *pubk, 2 BIGNUM *eph_key, 3 const unsigned char *key, 4 size_t keylen, 5 unsigned char *ukm, 6 size_t ukm_len); 7 8int decrypt_rfc4490_shared_key_2001(EVP_PKEY *priv, 9 GOST_KEY_TRANSPORT * gkt, 10 unsigned char *key_buf, int key_buf_len); 11