i2d_PrivateKey
LCRYPTO_ALIAS(i2d_PrivateKey);
int i2d_PrivateKey(EVP_PKEY *a, unsigned char **pp);
LCRYPTO_USED(i2d_PrivateKey);
return PEM_ASN1_write_bio((i2d_of_void *)i2d_PrivateKey,
return ASN1_i2d_bio_of(EVP_PKEY, i2d_PrivateKey, bp, pkey);
return ASN1_i2d_fp_of(EVP_PKEY, i2d_PrivateKey, fp, pkey);