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

dan dan.trainor at gmail.com
Tue May 24 02:06:04 CEST 2005

Simon Josefsson wrote:
> 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

Simon -

Thanks for the response.

The only argument we're compiling libgcrypt with is '--disable-asm'.  I 
took the origional RPM for libgcrypt-1.2.0-1, and modified it slightly 
for -1.2.1, just in case.  We get this error regardless of which version 
we're using.

Why wouldn't we able to use the RNG on this Linux platform?  What would 
prevent us?


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