[Help-gnutls] Re: No entropy gathering module detected

[Simon Josefsson]

dan <dan.trainor at gmail.com> writes:

> Good afternoon, all -
>
> I'm new to the list, I'd like to first thank the developers of GNUTLS 
> for their fine work.  We appreciate it.
>
> We're developing a threaded application in our development department, 
> and it's going alright so far.  However, we keep getting an error which 
> we believe comes from generate_dh_params().  The error is as follows:
>
> Fatal: no entropy gathering module detected
>
> The most we've been able to gather using google.com and assorted 
> resources is that entropy cannot be established.  The only solution that 
> we had found that was even remotely related to ours just suggested 
> making sure that /dev/{u}random had world-readable permissions.  Aside 
> from that, we don't know what to go by.
>
> Any pointers?

That is a libgcrypt error.  Check how you built libgcrypt.  If the
Win32/Linux/Unix RNG can't be used, you might need to run EGD.

You could also try building GnuTLS with --with-nettle.

Hope this helps,
Simon