TS_CONF_set_signer_cert
LCRYPTO_USED(TS_CONF_set_signer_cert);
int TS_CONF_set_signer_cert(CONF *conf, const char *section,
LCRYPTO_ALIAS(TS_CONF_set_signer_cert);
if (!TS_CONF_set_signer_cert(conf, section, signer, resp_ctx))