[erlang-questions] Module For Enforcing Password Strength

Gordon Guthrie <>
Mon Aug 16 22:05:23 CEST 2010


Michael

Aye Caramba!

I will give it a go!

Would you expect cracklib to be pretty NIF-tastic - a stable code base, a
quick turn-around so the VM doesn't stall?

Try it and see I suppose...

Gordon

On 16 August 2010 19:33, Michael Santos <> wrote:

> On Mon, Aug 16, 2010 at 05:52:48PM +0100, Gordon Guthrie wrote:
> > Richard
> >
> > > cracklib. C bindings. Write your own wrapper.
> >
> > Kinda what I was hoping NOT to have to do :(
> >
> > Had a go at writing a C port driver a couple of years ago and didn't
> really
> > get anywhere...
>
> Just for fun, I wrote an interface to libcrack and put it here:
>
> http://github.com/msantos/cerck
>
> Adding support for checking the length and the presence of characters
> besides those in the alphabet should be simple. I'll add them later
> but, it'd probably be better to write all of this in pure Erlang.
>
> One thing to watch out for: libcrack calls exit() if the dictionnary
> files don't exist, which will cause the vm to exit.
>
> > On 16 August 2010 11:20, Richard Andrews <> wrote:
> >
> > > cracklib. C bindings. Write your own wrapper.
> > >
> > > On Mon, Aug 16, 2010 at 6:34 PM, Gordon Guthrie <
> >
> > > wrote:
> > > > Folks
> > > >
> > > > I was sitting fingers poised on the keyboard to write a module to
> test
> > > > password strength and I though, "haud on, somebody musta done
> this"...
> > > >
> > > > Does anyone know of a library module that checks passwords for:
> > > > * length
> > > > * dictionary attack
> > > > * contains numbers/punctuation
> > > > * etc, etc
> > > >
> > > > Or does anyone have the bones of one that could be turned into an
> open
> > > > source library (I would take on the maintenance if that was too much
> of a
> > > > chore).
> > > >
> > > > Gordon
> > > >
> > > > --
> > > > Gordon Guthrie
> > > > CEO hypernumbers
> > > >
> > > > http://hypernumbers.com
> > > > t: hypernumbers
> > > > +44 7776 251669
> > > >
> > >
> >
> >
> >
> > --
> > Gordon Guthrie
> > CEO hypernumbers
> >
> > http://hypernumbers.com
> > t: hypernumbers
> > +44 7776 251669
>
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-- 
Gordon Guthrie
CEO hypernumbers

http://hypernumbers.com
t: hypernumbers
+44 7776 251669


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