Re: [cryptography] urandom vs random

2013-08-19 Thread Aaron Toponce
On Sun, Aug 18, 2013 at 05:07:49PM -0700, coderman wrote: i am surprised this has not surfaced more often in this thread: if you need good entropy: use a hardware entropy generator! It's a shame http://entropykey.co.uk is no longer in business. I was able to procure 5 entropy keys just before

Re: [cryptography] urandom vs random

2013-08-19 Thread Jeffrey Walton
On Mon, Aug 19, 2013 at 9:20 AM, Aaron Toponce aaron.topo...@gmail.com wrote: ... It's a shame http://entropykey.co.uk is no longer in business. I was able to procure 5 entropy keys just before they folded, and they're awesome. Yeah, I really liked EntropyKey. I tried to place an order last

Re: [cryptography] urandom vs random

2013-08-19 Thread Harald Hanche-Olsen
[Aaron Toponce aaron.topo...@gmail.com (2013-08-19 13:20:45 UTC)] I'm currently working on a program to feed the random data found from an RTL-SDR dongle into the entropy pool. Then just tune to an empty frequency, and let atmospheric noise rule. The raspberry pi supposedly has a hardware RNG

Re: [cryptography] urandom vs random

2013-08-19 Thread shawn wilson
They're also not super good. They barely keep up with my ssh traffic and it took ages to create a key for whatever Arch wanted (don't recall what). On Mon, Aug 19, 2013 at 10:21 AM, Harald Hanche-Olsen han...@math.ntnu.nowrote: [Aaron Toponce aaron.topo...@gmail.com (2013-08-19 13:20:45 UTC)]

Re: [cryptography] urandom vs random

2013-08-19 Thread Aaron Toponce
On Mon, Aug 19, 2013 at 09:41:20AM -0400, Jeffrey Walton wrote: Yeah, I really liked EntropyKey. I tried to place an order last year (or early this year). It was never fulfilled and no one responded. I knew the were having some troubles, but I could not determine the cause. Why did they

Re: [cryptography] urandom vs random

2013-08-19 Thread Jeffrey Walton
Hi Aaron, Here is the last I saw of them (besides the website being up): http://lists.simtec.co.uk/pipermail/entropykey-users/2013-July/thread.html. They claim to still be around (from the last in the thread): We've gone through a major crisis, but are still here... just. To say any

Re: [cryptography] urandom vs random

2013-08-19 Thread ianG
On 19/08/13 18:21 PM, Aaron Toponce wrote: On Mon, Aug 19, 2013 at 09:41:20AM -0400, Jeffrey Walton wrote: Yeah, I really liked EntropyKey. I tried to place an order last year (or early this year). It was never fulfilled and no one responded. I knew the were having some troubles, but I could

Re: [cryptography] urandom vs random

2013-08-19 Thread Aaron Toponce
On Mon, Aug 19, 2013 at 11:27:37AM -0400, Jeffrey Walton wrote: Here is the last I saw of them (besides the website being up): http://lists.simtec.co.uk/pipermail/entropykey-users/2013-July/thread.html. They claim to still be around (from the last in the thread): We've gone through a

Re: [cryptography] urandom vs random

2013-08-19 Thread Sandy Harris
Aaron Toponce aaron.topo...@gmail.com wrote: On Sun, Aug 18, 2013 at 05:07:49PM -0700, coderman wrote: i am surprised this has not surfaced more often in this thread: if you need good entropy: use a hardware entropy generator! It's a shame http://entropykey.co.uk is no longer in business.

Re: [cryptography] urandom vs random

2013-08-19 Thread shawn wilson
On Mon, Aug 19, 2013 at 11:31 AM, Aaron Toponce aaron.topo...@gmail.comwrote: Hopefully they rise like a phoenix, and their product is for sale again. I would like to purchase more. No kidding. I think someone on here told me about them and I tried to get one a bit later and couldn't. I

Re: [cryptography] urandom vs random

2013-08-19 Thread grarpamp
if they had a product, you would have had it. It's a recurring theme -- there doesn't seem to be enough market demand for Hardware RNGs. I once toyed with the idea of creating an open source hardware design This reminds me, where are the open designs for a strong hwRNG based on the common

Re: [cryptography] urandom vs random

2013-08-19 Thread Peter Gutmann
shawn wilson ag4ve...@gmail.com writes: It's not like they're the only ones that sell these, but they /were/ the only ones to sell USB PRNG at $800. You can get them for as little as $50 in the form of USB-key media players running Android. Or if you really insist on doing the whole thing

Re: [cryptography] urandom vs random

2013-08-19 Thread Peter Gutmann
Sandy Harris sandyinch...@gmail.com writes: A sound device is available on many server boards and often unused, or you can add one in a slot or USB on others, A friend of mine looked at this a while back using the pretty simple technique of drawing a scatter plot from the samples. The output of

Re: [cryptography] urandom vs random

2013-08-19 Thread William Yager
On Aug 19, 2013, at 7:46 PM, Peter Gutmann pgut...@cs.auckland.ac.nz wrote: You can get them for as little as $50 in the form of USB-key media players running Android. Or if you really insist on doing the whole thing yourself, get something like an EA-XPR-003 ($29 in single-unit quantities

Re: [cryptography] urandom vs random

2013-08-19 Thread Patrick Pelletier
On 8/19/13 1:51 PM, grarpamp wrote: This reminds me, where are the open designs for a strong hwRNG based on the common smoke detector? People say they want a hwRNG, lots of them are free for asking right down the street at the demolition site. But where are the designs? The creator of HotBits