*https://github.com/snowblossomcoin/snowblossom/compare/2108e5c81817...ba162d644a15* https://github.com/snowblossomcoin/snowblossom/commit/ba162d644a15a1d35c21d529b1545d6bf6a03b83 - Switch to SecureRandom

Make sure it is good. Probably is fine, but worth checking. I think I did this last year, but I honestly don't remember.