SLH_DSA_PK_ROOT
pk_root = SLH_DSA_PK_ROOT(pub);
|| !hashf->H_MSG(hctx, r, pk_seed, SLH_DSA_PK_ROOT(priv), msg, msg_len,
dst = validate ? pk_root : SLH_DSA_PK_ROOT(out);
&& (validate == 0 || memcmp(dst, SLH_DSA_PK_ROOT(out), n) == 0);