noise_mix_dh
if (!noise_mix_dh(hs->hs_ck, key, hs->hs_e, r->r_public))
if (!noise_mix_dh(hs.hs_ck, key, l->l_private, ue))
if (!noise_mix_dh(hs->hs_ck, NULL, e, hs->hs_e))
if (!noise_mix_dh(hs->hs_ck, NULL, e, r->r_public))
if (!noise_mix_dh(hs.hs_ck, NULL, hs.hs_e, ue))
if (!noise_mix_dh(hs.hs_ck, NULL, l->l_private, ue))
static bool noise_mix_dh(uint8_t [NOISE_HASH_LEN],