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Hi, I use the following method to generate a random string:

def gen_token(len=3D6)
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....).

Thanks a lot.

--=20
I=C3=B1aki Baz Castillo
<>

2011/1/27 I=C3=B1aki Baz Castillo <>:
> Hi, I use the following method to generate a random string:
>
> =C2=A0 =C2=A0def gen_token(len=3D6)
> =C2=A0 =C2=A0 =C2=A0rand(36**len).to_s(36)
> =C2=A0 =C2=A0end
>
> 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


--=20
I=C3=B1aki Baz Castillo
<>