From eugen@leitl.org Sun Aug 25 05:19:13 2013 From: Eugen Leitl To: cypherpunks@lists.cpunks.org Subject: Re: [cryptography] urandom vs random Date: Sun, 25 Aug 2013 11:19:09 +0200 Message-ID: <20130825091909.GR29404@leitl.org> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="===============8412288799194646585==" --===============8412288799194646585== Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit ----- Forwarded message from Peter Gutmann ----- Date: Thu, 22 Aug 2013 23:05:50 +1200 From: Peter Gutmann To: cryptography(a)randombit.net Subject: Re: [cryptography] urandom vs random Just appeared on the GnuPG list: NeuG 0.11 was released. NeuG is an implementation of True Random Number Generator based on quantization error of ADC of STM32F103. It is basically intended to be used as a part of Gnuk, but we also have standalone USB CDC-ACM version (you can get random stream from /dev/ttyACM0). Standalone version is useful to feed entropy to /dev/random on GNU/Linux. Its generation speed is >= 50kB/sec, and it's more when connected to USB 2.0 Hub. The output is tested NIST STS 2.1.1 and Dieharder 3.31.1. Highlights are: * Replacement of kernel (thread library) Instead of ChibiOS/RT, we now use Chopstx. * Improved performance The output of random numbers got faster than the previous implementation by 30% or so. * Unsupported targets CQ_STARM, STBEE, STBEE Mini, and STM32_PRIMER2 are not supported in this release, but porting should be easy. Here are some links for NeuG, Gnuk and FST-01 (the hardware). NeuG (under Gnuk Repository): http://gitorious.org/gnuk/neug Gnuk News: http://www.fsij.org/gnuk/ FST-01 introduction: http://www.seeedstudio.com/wiki/index.php?title=FST-01 FST-01 Q&A site: http://no-passwd.net/askbot/questions/ Japanese Documentation for FST-01 and Gnuk Token: http://no-passwd.net/fst-01-gnuk-handbook/index.html Enjoy, _______________________________________________ cryptography mailing list cryptography(a)randombit.net http://lists.randombit.net/mailman/listinfo/cryptography ----- End forwarded message ----- -- Eugen* Leitl leitl http://leitl.org ______________________________________________________________ ICBM: 48.07100, 11.36820 http://ativel.com http://postbiota.org AC894EC5: 38A5 5F46 A4FF 59B8 336B 47EE F46E 3489 AC89 4EC5 --===============8412288799194646585==--