Per https://news.ycombinator.com/item?id=46273325 https://news.ycombinator.com/item?id=46273325, if you use a block cipher rather than a hash then you don't eve

Per https://news.ycombinator.com/item?id=46273325 https://news.ycombinator.com/item?id=46273325, if you use a block cipher rather than a hash then you don't even need to store it anywhere.