PEM_write_bio_DSAPrivateKey
i = PEM_write_bio_DSAPrivateKey(out, dsa, dsa_config.enc,
i = PEM_write_bio_DSAPrivateKey(out, dsakey, NULL, NULL, 0, NULL, NULL);
if (!PEM_write_bio_DSAPrivateKey(out, dsa, gendsa_config.enc, NULL, 0,
success = PEM_write_bio_DSAPrivateKey(bio, key->dsa,