Sorry, just a nitpick: タカラバコ is not a random sequence. It means "treasure box". The random sequences are those for letters that do not correspond to actual passwords. I think mamu had a bit of fun with those
And a clarification for ragragrag's reactPSN tutorial: when he says cfw 3.55.2 (and the 0.7 update), he means Rebug firmware. ReactPSN may work with Kmeaw under certain circumstances if you don't want to switch to Rebug for some reason. You'll need Rebug if you've never signed in to PSN with Kmeaw, though.