Increasing entropy

2012-06-08 Thread D'Arcy Cain
I have been having entropy issues lately. In particular, password generation takes a long time. The apg utility usually takes almost a minute to run. I tried bitstir from pkgsrc which does solve the entropy issue but it does so by working the disk a lot. Besides concerns about lowering the lif

Re: Increasing entropy

2012-06-08 Thread Thor Lancelot Simon
On Fri, Jun 08, 2012 at 02:15:05PM -0400, D'Arcy Cain wrote: > I have been having entropy issues lately. In particular, password > generation takes a long time. The apg utility usually takes almost > a minute to run. Can you please provide the usual basic details about the systems in question?

Re: Increasing entropy

2012-06-08 Thread Paul_Koning
On Jun 8, 2012, at 2:15 PM, D'Arcy Cain wrote: > I have been having entropy issues lately. In particular, password > generation takes a long time. The apg utility usually takes almost > a minute to run. > > I tried bitstir from pkgsrc which does solve the entropy issue but > it does so by work

Re: Increasing entropy

2012-06-08 Thread D'Arcy Cain
On 12-06-08 02:31 PM, paul_kon...@dell.com wrote: Also, whether our current /dev/random is good or not, stirring /dev/urandom into it is a waste of time, because /dev/urandom is simply /dev/random without the blocking. I see. So basically I should just switch to /dev/urandom if I get too muc

Re: Increasing entropy

2012-06-08 Thread David Laight
On Fri, Jun 08, 2012 at 06:31:54PM +, paul_kon...@dell.com wrote: > > From what I remember from reading Schneier's discussion of this topic > (in the description of the PRNG he designed), the notion of "draining" > entropy does not make cryptographic sense. > Instead, what you have in a PRNG i

Re: Increasing entropy

2012-06-08 Thread Paul_Koning
On Jun 8, 2012, at 4:38 PM, David Laight wrote: > On Fri, Jun 08, 2012 at 06:31:54PM +, paul_kon...@dell.com wrote: >> >> From what I remember from reading Schneier's discussion of this topic >> (in the description of the PRNG he designed), the notion of "draining" >> entropy does not make c