4 ms·

I've been working with this project for some time: https://github.com/pwarren/rtl-entropy https://github.com/pwarren/rtl-entropy Quite a bit of entropy using

• IgorPartola 13y ago
  I wonder how hard it is to build something like that using the mic input. Or perhaps measuring the noise on a spare 802.11 card. I know in general it is not easy to add a kernel facility that will be widely available, but how hard is it to build a physical RNG if your specific case demands high entropy and you do not want/need a commercial product?
  • hdevalence 13y ago
    There is already a project whose name sadly escapes me that does this, using information theory to derive lower bounds on the number of bits of entropy in data read from a line-in jack. EDIT: I'm thinking of Turbid: http://www.av8n.com/turbid/paper/turbid.htm http://www.av8n.com/turbid/paper/turbid.htm EDIT2: There's also a wealth of information in this thread from the metzdowd cryptography mailing list: http://www.metzdowd.com/pipermail/cryptography/2013-September/017572.html http://www.metzdowd.com/pipermail/cryptography/2013-Septembe...
    • BuildTheRobots 13y ago
      is it VanHeusden's audio_entropyd? [1] They also provide a timer and video based entropy daemons too. [1] http://www.vanheusden.com/aed/ http://www.vanheusden.com/aed/