This came up earlier today in a discussion at work, and I googled up an old fav again: https://crypto.stackexchange.com/a/1172 https://crypto.stackexchange.com/

This came up earlier today in a discussion at work, and I googled up an old fav again: https://crypto.stackexchange.com/a/1172 https://crypto.stackexchange.com/a/1172