From: Dave Bass <davebass@...>
Date: 2008-12-30T20:03:58+09:00
Subject: Re: Options to generate small, kind of unique, human-readable tokens  (like "V0cM9tnV") ?

Generate a suitable random (or otherwise) integer and express in base 
36:

  puts rand(36**6).to_s(36)

Dave
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