You don't have access to CGI/Util.pm.
www.com | www.net | www.org
Hope and Pray
Hash & Salt using Acme::XKCD::DebianRandom
Hash & Salt using other rng algorithms
Printouts secured with physical locks
One of a million Post-Its sticking on the monitor
A piece of paper taped to the backside of the keyboard
Results (72 votes). Check out past polls.