[quote=Sloth]
That would make every unicorn unique in order to be properly decoded for the password.Unless there's some very subtle color changes, I've seen people with duplicate 'corns.
[/quote]

Which makes sense, because if this is based on a hash table (probably based on user ID more than username/pass), then even [i]unique[/i] identifiers can hash to the same number. Create a hash table of Social Security numbers and you'll likely find many that hash to the same place, unless your hash table is so big as to make it useless (the point is to be small and quick for easy searches).