About Tripcodes...

The FAQ here is a little vague on some points:
FAQ says short word.  Must it be a word or can it be a random string?
Max length?
Case sensitive?
Forbidden characters? (I assume # is one)
Link to more in depth info?

Thanks in advance
les

i think tripcodes are a very important part of 4chan

however, secure trips are easily cracked.

just go ask /g/