2011/1/27 IƱaki Baz Castillo <ibc / aliax.net>:
> Hi, I use the following method to generate a random string:
>
>  def gen_token(len=6)
>   rand(36**len).to_s(36)
>  end
>
> It's the most efficiente way I've found. However even if the parameter
> is 6, the method sometimes returns a string of lenght 5, 4...
>
> Is there an efficient way to a random string with fixed length? (I
> don't want to check the resulting length and then append some other
> byte....).

In fact, what I need is to generate a Base64 encoded string of a fixed
length. And I've found right now the SecureRandom.base64(n) method in
Ruby 1.9 :)


-- 
Iaki Baz Castillo
<ibc / aliax.net>