Learn how to create a strong password. The strongest passwords look like a random string of characters to attackers. But random strings of characters are hard to remember.

Last week, Ars Project Manager Clint Ecker mentioned that he wanted a flexible password generator on the iPhone for whenever he wants to create a completely forgettable pass-phrase.

Do you trust the passwords created by third-party software to be truly random and safe? Here's how to build your own random generator for uncrackable passwords.