br_ssl_engine_set_chapol(cc,
&br_sslrec_in_chapol_vtable,
&br_sslrec_out_chapol_vtable);
br_ssl_engine_set_chacha20(cc, &br_chacha20_ct_run);
br_ssl_engine_set_chapol(cc,
&br_sslrec_in_chapol_vtable,
&br_sslrec_out_chapol_vtable);
br_ssl_engine_set_chacha20(cc, &br_chacha20_ct_run);