Lol lattice-based theoretical crypto has solid theoretical foundations. Finding the correct paramter ranges for applications is difficult and that&#x27;s why you aren&#x27;t seeing widespread usage yet, but it&#x27;s certainly not snake-oil.<p>And don&#x27;t get your hopes up about seeing a practical implementation of iO any time soon; it&#x27;s thoroughly and utterly impractical at the moment, and will remain so for the foreseeable future.