KEX_DH_GEX_SHA256
server2->kex->kex[KEX_DH_GEX_SHA256] = kexgex_server;
{ KEX_DHGEX_SHA256, KEX_DH_GEX_SHA256, 0, SSH_DIGEST_SHA256, KEX_NOT_PQ },
kex->kex[KEX_DH_GEX_SHA256] = kexgex_server;
c->c_ssh->kex->kex[KEX_DH_GEX_SHA256] = kexgex_client;
ssh->kex->kex[KEX_DH_GEX_SHA256] = kexgex_server;
ssh->kex->kex[KEX_DH_GEX_SHA256] = kexgex_client;
ssh->kex->kex[KEX_DH_GEX_SHA256] = kexgex_client;
kex->kex[KEX_DH_GEX_SHA256] = kexgex_server;